3.0.1

Published 29 October 2024

Bugfixes

Remove space from the default client user agent (KTOR-7655)
Url.segments throws on URLs with root path (KTOR-7625)
Digest Auth does not implement nc parameter correctly according to RFC 7616 (KTOR-4318)
about:blank URL should be parsed correctly as about:blank (KTOR-7410)
ByteReadChannel.{readShort/readInt/readLong} could lead to CPU-bound indefinite loop since 3.0.0 (KTOR-7571)
CIO: Requests face connection timeouts when executed on the Android main dispatcher (KTOR-6803)
receiveMultipart fails with "IOException: Failed to parse multipart" when content-type is capitalized (KTOR-7596)

Improvements

WebSockets logging: The plugin calls toString() unnecessarily on transformed response body (KTOR-7623)
INFO log message with all server interceptors on server startup (KTOR-7326)
Digest auth: username and cnonce parameters aren't surrounded with quotes (KTOR-7561)
ContentType.fromFilePath for newer file formats HEIC, AVIF, HEIF (KTOR-7536)
Support missing native targets in ktor-serialization-kotlinx-xml (KTOR-7583)

3.0.0

Published 9 October 2024

Bugfixes

Darwin: The maxFrameSize option has no effect (KTOR-6963)
KotlinReflectionInternalError (createClientPlugin) when running release APK on Android (KTOR-7479)
Netty: UnsupportedOperationException is thrown when responding in CallSetup and CORS plugin is installed (KTOR-4433)
MicrometerMetrics: Prometheus meter registry 1.13.0 generates configuration warning (KTOR-7035)
Websockets/Auth: ProtocolException when requesting protected WebSockets endpoint (KTOR-7363)
Data truncated in receiveParameters and receiveMultipart (KTOR-7201)
The pathSegments returns empty strings for trailing slashes (KTOR-4402)
HttpRequestRetry: exponential delay doesn't work for delays <= 1 second (KTOR-7294)
JS browser: "Error: HttpClientCall expected" on HTTP request when targeting es2015 (KTOR-6882)
Incomplete write using io.ktor.util.cio.FileChannelsKt#writeChannel (KTOR-1618)
response.content.copyAndClose(targetFile.writeChannel()) sometimes loses some bytes (KTOR-3003)
ByteWriteChannel.flush is not Waiting Until Flushing the Internal Buffer to the Destination (KTOR-3102)
CORS check fails when the Origin header has a value without trailing slash (KTOR-5936)
Closing socket and selector leaks descriptor on native (KTOR-7255)
ConnectionUtilsNative leaks descriptors on error (KTOR-6977)
withTimeout doesn't cancel socket connection on native (KTOR-5289)
MockEngine: the ability to set dispatcher is removed (KTOR-6417)

Improvements

Misleading readBytes method name (KTOR-6596)
Remove reflection utils used only on JVM target from common source set (KTOR-7540)
Weak security algorithm (MD5) in FileCacheStorage (KTOR-6589)
Missing constants for AcceptEncoding (KTOR-6412)
Add respondFile overload with Path parameters (KTOR-7202)
MalformedInputException confusingly is a Throwable but not an Exception (KTOR-7316)
CSRF: The allowOrigin method enables the Origin Header validation (KTOR-6695)
Auth: Drop marker interface requirements (KTOR-7323)
Routing: Support accessing the request body in RouteSelector (KTOR-7084)
Make Cookie class Serializable (KTOR-6258)
Make the internal Route.swaggerUI method public (KTOR-6491)
Ktor clients and servers should use Dispatchers.IO.limitedParallelism(...) wherever possible (KTOR-6462)

Features

Support androidNative targets (KTOR-7289)
Provide the API that simplifies disabling CORS for testing purposes (KTOR-3329)
Add support for mingw to ktor-network in order to make server and client work on windows (KTOR-4080)

3.0.0-rc-2

Published 2 October 2024

Bugfixes

Sessions: custom SessionSerializer is no longer supported (KTOR-7442)
Multipart/form-data: Request timeout when receiving FileItem with 3.0.0-rc-1 (KTOR-7484)
MultiPartData.readPart does not return null when stream ends (KTOR-7500)
Multipart/form-data: Form limit applied for binary and file items (KTOR-7356)
Autoreload not working by default under Windows (KTOR-3031)
HttpCache: Cache collision in the plugin when Authorization header is used (KTOR-7483)
Gradle sync issue with kotlin-serialization 1.7.2 on 3.0.0-rc-1 (KTOR-7477)
The ApplicationStopping event isn't raised when application is terminated with SIGINT (KTOR-7448)
respondOutputStream reads entire contents into memory before returning response (KTOR-7461)
UninitializedPropertyAccessException for request property when using MonitoringEvent(RoutingCallStarted) (KTOR-7449)
Preconfigured NSURLSession causes requests to hang (KTOR-7355)
Failures after upgrading Ktor in test server (KTOR-7431)
InputStream.toByteReadChannel creates unattached job (KTOR-7012)
Maven builds not working (KTOR-7425)

Improvements

Deprecate withTestApplication APIs with ERROR and migrate to testApplication (KTOR-7284)
Replace java.time options in Websockets plugin (KTOR-7446)
Ktor doesn't read System properties from jvm (KTOR-7492)
Redirect dependencies from ktor-server-test-base (KTOR-7393)
Include relocation notes for old Ktor modules (KTOR-6826)
ByteReadChannel.readFully(dst: ByteArray, offset: Int, length: Int) is missing since 3.0.0-beta-2 (KTOR-7427)
ByteChannel.readUtf8Line() backwards compatibility (KTOR-7474)
Kotlinx-io response extension (KTOR-7504)

Features

Add multiplatform support for XML (KTOR-5085)
Add watchosDeviceArm64 target (KTOR-6368)

3.0.0-rc-1

Published 9 September 2024

Bugfixes

Bytecode incompatibility in AttributeKey (KTOR-7334)
ContentEncoding: request hangs when using 3.0.0-beta-2 (KTOR-7265)
Revert Routing API changes from Route to Routing (KTOR-7238)
IOException: startIndex (0) > endIndex (-1) when making concurrent requests via thread pool (KTOR-7254)
ByteReadChannel.copyTo sometimes throws "IllegalArgumentException: Buffer is empty" (KTOR-7220)
Redirect dependencies from ktor-server-test-base (KTOR-7393)
CIO: EmbeddedServer.stop always blocks for shutdownGracePeriod (KTOR-7360)
SSE: the plugin doesn't follow the spec when multiline data is sent (KTOR-7391)
Infinite creation of CancellableContinuationImpl on ByteChannel.flush (KTOR-7324)

Improvements

Include relocation notes for old Ktor modules (KTOR-6826)
Deprecate old jetty / tomcat / servlet engines (KTOR-7315)
Backwards compatibility for monitor (KTOR-7264)
ApplicationProperties naming is confusing (KTOR-7270)

Features

staticZip: Support watching for changes and reloading of zip files (KTOR-7243)

3.0.0-beta-2

Published 15 July 2024

Bugfixes

io.ktor.util.TextKt.chomp doesn't work on strings with more than one character (KTOR-7209)
DefaultRequest plugin overwrites http protocol (KTOR-5586)
Ktor build problem; cannot compile native targets (KTOR-6666)
SSEException is thrown instead of JobCancellationException when coroutine's job is cancelled (KTOR-6571)
SSE request drops request body (KTOR-6659)
SSE: UnsupportedContentTypeException when sending POST request using OKHttp engine (KTOR-6911)
SSE: NoTransformationFoundException when Logging plugin with LogLevel.ALL is used (KTOR-6912)
Installing SSE breaks GET/POST functionality (KTOR-6614)
Cookies with a long Max-Age incorrectly expire in AcceptAllCookiesStorage (KTOR-6646)
Some dependency versions not tracked (KTOR-7123)
CSRF: false positive originMatchesHost validation when default port is explicitly defined (KTOR-6701)
Double Transfer-Encoding header while using respondOutputStream on Tomcat (KTOR-6574)

Improvements

HttpCalValidatorConfig class name is misspelled (KTOR-6625)
CallLogging: package is misspelled (KTOR-4273)
Ambiguous coroutineContext warning in routing handler (KTOR-5181)
Tracing: allow changing log level at runtime for routing (KTOR-7193)
io.ktor.network.tls.TLSException has internal visibility (KTOR-6767)
Auth: Make refreshToken of BearerTokens class nullable (KTOR-6928)
Ktor test application library references internal module (KTOR-6668)
CSRF: Confusing error message when Origin validation is enabled and only Referrer header is sent (KTOR-6702)
CSRF: validations probably shouldn't be applied to GET/HEAD/OPTIONS requests (KTOR-6698)
CSRF: Empty onFailure option is misleading (KTOR-6687)
Misleading assertion message in the testEmbeddedServerCancellation test (KTOR-6657)
Allow setting "Secure" flag for cookies on localhost (KTOR-6593)
SSE: Unable to access response headers (KTOR-6660)
SSE: Improve support for testing (KTOR-3290)
OAuth handler does not propagate redirection errors to the caller (KTOR-6605)
HttpTimeoutTest.testConnect are flaky (KTOR-1583)

Features

Migrate to new kotlinx.io library (KTOR-6030)
Change default session serializer to the one that uses kotlinx-serializaion (KTOR-6175)
Replace custom withTimeout implementation using WeakTimeoutQueue with coroutines.withTimeout (KTOR-3658)
Add Url capability: parsing/validating url strings (KTOR-360)
SSE: Support handling HTTP failures (KTOR-6808)
Ktor client for Kotlin/Wasm (KTOR-5587)
CSRF protection feature (KTOR-2910)

2.3.12

Published 20 June 2024

Bugfixes

NoSuchMethodError when using coroutines 1.9.0-RC (KTOR-7054)
Server: Content-Type header for static js, css and svg resources misses charset (KTOR-6655)
Embedded Linux device without iso-8859-1 and UTF-16 cannot use ktor-network (KTOR-7016)

Improvements

Update netty to 4.1.111.Final (KTOR-7094)
Update netty due to CVE-2024-29025 (KTOR-7014)
Update dependency on swagger (KTOR-7019)

2.3.11

Published 8 May 2024

Bugfixes

Test client ignores socket timeout (KTOR-6909)

2.3.10

Published 8 April 2024

Bugfixes

CallLogging, StatusPages: response logged twice when status handler is used (KTOR-6839)
NodeJS WebSocket client sometimes drops a frame received immediately after handshake (KTOR-6883)
IPv6 addresses are not supported in NettyConnectionPoint and CIOConnectionPoint (KTOR-5383)
JS browser: "Maximum call stack size exceeded" on HTTP request when targeting es2015 (KTOR-6878)
CIO: File upload fails with NumberFormatException when uploading file larger than INT_MAX bytes (~2.1 GiB) since 2.3.0 (KTOR-6851)
CallLogging: the plugin completely overrides MDC if at least one entry is configured (KTOR-6642)
SSE plugin: Duplicated "Content-Type: text/event-stream" headers (KTOR-6735)
CIO: "getSubjectAlternativeNames(...) must not be null" when IP-addresses are verified and no SAN in the certificate (KTOR-6746)

Improvements

Inconsistent behavior of Netty and rest engines by returning null or empty string for query parameters without values (KTOR-6850)
Android: no logs are present in Logcat with Logger.ANDROID (KTOR-1219)

2.3.9

Published 4 March 2024

Improvements

Allow to set secure cookie even with http scheme (KTOR-3159)

Bugfixes

ContentNegotiation: the plugin appends duplicated MIME type to Accept header (KTOR-6684)

2.3.8

Published 31 January 2024

Bugfixes

"KeyStoreException: JKS not found" exception on Android when configuring secure connection (KTOR-6720)
URLBuilder crashes on React Native platforms (KTOR-6576)
CIO: Unable to perform WebSocket upgrade when Content-Type header is sent in the request (KTOR-6366)
ContentNegotiation: Adding charset to content type of JacksonConverter breaks request matching (KTOR-6420)
High Native Server Memory Usage (KTOR-6321)
Server ContentNegotiation no longer allows multiple decoders for one Content-Type (KTOR-5410)
Logging plugin blocks response body streaming when level is BODY (KTOR-6482)
WebSockets: Confusing error message when server doesn't respond with Upgrade (KTOR-6397)
{...} (tailcard) does not match URLs ending with '/' (KTOR-2121)
HttpCache: NumberFormatException for cache-control with max age more than Int.MAX_VALUE (KTOR-6505)
CORS: allowHost without the second argument doesn't allow the secure host (KTOR-6494)
"ReferenceError: 'self' is not defined" when using URLBuilder in a custom JS engine (KTOR-5978)
MDC diagnostic value is changed during logging of the request (KTOR-6528)
WebSocket doesn't get terminated when runBlocking is used (KTOR-6664)
CIO: "getSubjectAlternativeNames(...) must not be null" error on Android when using CA without SAN since 2.3.5 (KTOR-6396)
RequestConnectionPoint should implement toString() (KTOR-6577)

2.3.7

Published 28 November 2023

Bugfixes

Server ContentNegotiation no longer allows multiple decoders for one Content-Type (KTOR-5410)
High Native Server Memory Usage (KTOR-6321)
WebSockets: Confusing error message when server doesn't respond with Upgrade (KTOR-6397)
ContentNegotiation: Adding charset to content type of JacksonConverter breaks request matching (KTOR-6420)

3.0.0-beta-1

Published 23 November 2023

Bugfixes

OkHttp: SSE client throws confusing "Unexpected error" on non 200 status (KTOR-6390)
Logging plugin blocks response body streaming when level is BODY (KTOR-6482)
HttpResponseValidator consumes HTTP response body (KTOR-4225)
CIO: Unable to perform WebSocket upgrade when Content-Type header is sent in the request (KTOR-6366)
ContentNegotiation: Adding charset to content type of JacksonConverter breaks request matching (KTOR-6420)
DOS via OOM due to unbound request body size (KTOR-2682)
AcceptAllCookiesStorage ignores cookie's max-age (KTOR-2023)
Inconsistent behavior for different engines when exception is thrown in the writer of WriteChannelContent (KTOR-3266)
Server doesn't send a response when a status code is passed to call.respond and the custom serializer throws an exception (KTOR-6150)
contentLength() returns null on Android (KTOR-1540)

Improvements

Kotlin/JS: Allow passing custom Agent (KTOR-5861)
Update Kotlin to 1.9.0 (KTOR-6123)
Update Kotlin to 1.9.20 (KTOR-6447)
Deprecate Locations with Level.ERROR (KTOR-6029)
HSTS plugin hard codes port 443 (KTOR-4168)
API to use java.nio.Path as resources (KTOR-4275)
Ability to serve static resources from a .zip file (KTOR-6385)
Make DefaultHeaders plugin Kotlin native compatible (KTOR-6356)
Disable compression for SSE requests (KTOR-6327)
Drop http timeout for sse requests (KTOR-6312)
Add deprecations for old IO API (KTOR-6036)
Drop old deprecations (KTOR-6262)
Drop actual modifier for Memory class in jvm for compatibility with K2 (KTOR-6006)
Remove @Suppress("NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS") in preparation for Kotlin 2.0 (KTOR-5824)
Migrate client plugins to new API (KTOR-6303)
Jetty Server no idle timeout configuration possible (KTOR-6288)
AttributeKey equality comparison breaks type safety (KTOR-6122)
Darwin: Support accessing NSURLSessionDelegate (KTOR-5688)
Remove writing multipart data to temp file (KTOR-5881)
Netty: Allow listening only for HTTP/1.1 protocol SSL connections (KTOR-6098)
Persistent Cookie Storage: Make Cookie.matches and Cookie.fillDefaults methods public (KTOR-6119)
Decompressed response/request should unset Content-Encoding header (KTOR-6080)
renderSetCookieHeader shouldn't ignore maxAge = 0 (KTOR-6007)
Webjars plugin should include caching headers and ETag by default (KTOR-6073)
SessionsConfig.cookie problem with reified type argument (KTOR-5905)
Make LDAP Auth return generic Principal instead of UserIdPrincipal (KTOR-793)
Logger name should be prefixed with io.ktor (KTOR-938)

Features

Add Server-sent events (SSE) plugin for client and support for OkHttp engine (KTOR-505)
Client support for SSE plugin (CIO, Apache, Java) (KTOR-5963)
SSE plugin support in Js, Android, Curl, Darwin, WinHttp client engine (KTOR-6217)
Add Server-sent events (SSE) plugin for server (KTOR-6172)
Support UTF-8 BOM character (KTOR-5812)
Support Compression of Request Body with ContentEncoding Client Plugin (KTOR-4502)

2.3.6

Published 7 November 2023

Bugfixes

Resolved connectors job does not complete in TestApplicationEngine (KTOR-6411)
Darwin: Even a coroutine Job is canceled network load keeps high (KTOR-6243)
Darwin: EOFException when sending multipart data using Ktor 2.3.4 (KTOR-6281)
Ktor JS client unconfigurable logging in node (KTOR-6275)
CIO: getEngineHeaderValues() returns duplicated values (KTOR-6352)
"Server sent a subprotocol but none was requested" when using Node WebSockets (KTOR-4001)
YAML properties with literal value null cannot be read since 2.3.1 (KTOR-6357)
AndroidClientEngine cannot handle content length that exceeds Int range (KTOR-6344)
Client unable to make subsequent requests after the network disconnection and connection when ResponseObserver is installed (KTOR-6252)
Outdated Gradle jib plubin does not support application/vnd.oci.image.index.v1+json media type (KTOR-6280)
KTor 2.3.5 Kotlin 1.9.x upgrade is a breaking change (KTOR-6354)
WebSockets (CIO): Connection Failure Due to Lowercase 'upgrade' in 'Connection: upgrade' Header (KTOR-6388)
WinHttp: ArrayIndexOutOfBoundsException when sending WS frame with empty body (KTOR-6394)
Update dependency com.auth0:jwks-rsa to v0.22.1

2.3.5

Published 5 October 2023

Bugfixes

300+ ktor-client-java threads eat up lots of memory (KTOR-6292)
Apache5 engine limits concurrent requests to individual route to 5 (KTOR-6221)
DarwinClientEngine WebSocket rejects all received pongs (KTOR-5540)

2.3.4

Published 31 August 2023

Bugfixes

The "charset=UTF-8" part is automatically added to the application/json Content-Type (KTOR-6183)
MicrometerMetricsConfig default registry leaks coroutine (KTOR-6178)
Darwin: App hangs when sending a huge MultiPart request without access to network (KTOR-6147)
NPE in JavaClientEngine body() call (KTOR-6190)
Digest Auth: algorithm isn't specified in the Authorization header (KTOR-3391)
Confusing NoTransformationFoundException (KTOR-6064)
Cookie name-value pairs should be separated by a semicolon instead of a comma (KTOR-5868)

2.3.3

Published 1 August 2023

Bugfixes

java.util.zip.DataFormatException after enabling permessage-deflate (KTOR-5979)
DelegatingTestingClientEngine fails when ContentNegotiation with protobuf is installed and empty body (KTOR-6125)
KtorServlet does not support yaml configuration (KTOR-6108)
CIO ConnectionFactory leaks on cancellation (KTOR-6127)
staticFiles responds twice if both index and defaultPath are set (KTOR-6120)
Uncaught Kotlin exception: kotlin.IllegalArgumentException: Failed to open iconv for charset UTF-8 with error code 22 (KTOR-5980)
Not compatible with kotlinx-html 0.9.1 (KTOR-6124)
"Test engine is already completed" error while establishing Websockets connection (KTOR-6057)
s-maxage is not used, even if HttpCache.Config.isShared is true (KTOR-6087)
Cache returns null when vary header set different ways whatever it has same values (KTOR-6081)
DefaultRequest: a cookie appears twice in the request header when sending a request with another cookie (KTOR-5619)

Improvements

Drop linuxArm64 publication from ktor-client-curl (KTOR-6154)
Client: Target linuxArm64 (KTOR-872)
Server: Target linuxArm64 (KTOR-5753)
Add system property to disable automatic installation of runtime shutdown hook (KTOR-6070)

2.3.2

Published 28 June 2023

Bugfixes

Linking release build leads to compilation error with coroutines of version 1.7.0-Beta (KTOR-5728)
MapApplicationConfig removes deeply nested properties when converting to a map (KTOR-6013)
Cache returns null when vary header has more fields in the cached response (KTOR-6001)
ContentType of a response body isn't set inside OkHttp's interceptor when a form request is sent (KTOR-5971)

Improvements

Update Kotlin to 1.8.22 (KTOR-6053)
The error message is not helpful when authenticating with a bearer header with a colon (KTOR-5409)

2.3.1

Published 31 May 2023

Bugfixes

AndroidClientEngine: the engine double-parses query parameters before sending a request (KTOR-5814)
Flaky tests in WinHttp engine (KTOR-5946)
Electron/Node.js detection doesn't work correctly (KTOR-5906)
Curl sometimes fails with API function called from within callback (KTOR-5918)
Bearer auth token refresh hangs after prior refresh threw an exception (KTOR-5879)
HOCON: "No configuration setting found for key" error after merging (KTOR-5895)
Ktor Client Unable to Stream Responses in Javascript (KTOR-5867)
Darwin engine does not support streaming of request body (KTOR-5899)
The Logging plugin doesn't log full kotlinx deserialization errors (KTOR-5421)
XForwardedHeaders should set remoteAddress in addition to remoteHost (KTOR-5786)
Sessions: Set-Cookie is added on every api request (KTOR-912)
RateLimitters for every request key live in memory forever (KTOR-5872)
Significant delay between getting a part and starting reading from its provider for multipart/form-data requests (KTOR-5248)
getTimeMillis has seconds precision on native (KTOR-5878)
A coroutine closed due to cancellation is considered by the JsWebSocketSession to be closed on failure (KTOR-2932)
WebSockets: requests to a non-existing route cause server to lock up after responding with 404 (potential DOS) (KTOR-5829)
testApplication: NPE when test server doesn't reply with an HTTP upgrade (KTOR-5815)
GMTDate timestamp doesn't reflect timezone when created using Calendar.toDate method (KTOR-5813)

Improvements

Warn when the RateLimit plugin installed after the routing (KTOR-5915)
Allow access to RateLimiters related to call (KTOR-5876)
Multipart: Support not writing a temporary file for binary data (KTOR-5864)
Make System Property to Set outgoingToBeProcessed Size for WebSockets (KTOR-5855)
Support optional properties in YAML (KTOR-5796)
YAML config does not support reading variables from itself (KTOR-5797)

2.3.0

Published 19 April 2023

Features

Support loading multiple configuration files (KTOR-5658)
Static files filters or something similar to mod_rewrite (KTOR-818)
Built-in support for HEAD requests for static files (KTOR-4052)
Ability to set Content-Type of static resource (KTOR-2312)
Support regex patterns in routing (KTOR-5110)
Support Flow in ktor-serialization (KTOR-3788)
Upgrade Client Apache Engine Version to use Apache 5 (KTOR-4547)
Support for CURLOPT_CAINFO and CURLOPT_CAPATH in ktor-client-curl (KTOR-5614)
Allow passing multiple acceptable content types to accept route selector (KTOR-419)
Support 100 Continue (KTOR-829)

Improvements

The '425 Too Early' status code is missing in the HttpStatusCode enum (KTOR-4673)
Feature request: SO_REUSEADDR option for embedded server (KTOR-5529)
Add opportunity to pass type info into WebSockets serializing methods (KTOR-5740)
Ktor JS websocket client unconfigurable logging (KTOR-5456)
Update JTE to 2.3.0 (KTOR-5698)
Update Kotlin to 1.8.10 (KTOR-5544)
Migrate to the new Kotlin JS IR backend (KTOR-5543)
Prefer Node instead of browser behavior (KTOR-5650)
Update reported dependencies (KTOR-5662)
AutoHead should dispose response body (KTOR-5684)
Add append(String, List<String>) overload to FormBuilder (KTOR-5493)
Support serving static files from resources in GraalVM native image (KTOR-5580)
Comparable HttpStatusCode (KTOR-5629)
Support preCompressed with resources (KTOR-2677)
Add shutdown configuration for engine in stop method (KTOR-5560)
Logging: Add filter/sanitization of sensitive headers (KTOR-5523)
Add resource route builders accepting typed body as second parameter (KTOR-5589)
CallLogging: add config to avoid logging static file request (KTOR-5474)
Update Tomcat to 10 (KTOR-5266)
Update Jetty to version 11 (KTOR-5267)
Update Parameters and Headers DSL to be consistent with stdlib (KTOR-627)
Consider quoting Boolean during construction of multipart requests (KTOR-5405)
Simplify Static Content Plugin (KTOR-5265)

Bugfixes

Websockets: connection should be failed immediately when no continuation frame goes after a fragmented text frame (KTOR-5018)
Websockets: Connection should be failed immediately, since all data frames after the initial data frame must have opcode 0 (KTOR-5014)
Websockets: Connection should fail immediately (1002/Protocol Error) when control frame has a payload with more than 125 octets (KTOR-5006)
Java engine: Websockets client sends two PONG frames for each PING frame from a server (KTOR-5653)
Websockets: Erroneous trace log about expired websocket pings (KTOR-5672)
DarwinClientEngine: a request deadlocks on macOS since 2.2.2 (KTOR-5502)
Requests don't match in nested Regex Routing (KTOR-5750)
IllegalArgumentException in Regex Routing (KTOR-5748)
Unneeded escaping in Regex Routing isn't processed (KTOR-5746)
Native: Read from a closed socket doesn't throw an exception (KTOR-5093)
Reading response of HEAD request breaks when Content-Length > 0 (KTOR-5699)
"Serializer for class 'Any' is not found" error when responding with Any type since Ktor 2.2.4 (KTOR-5687)
BearerAuthProvider: Token is being refreshed multiple times when queued call finishes with 401 after refresh token succeeds (KTOR-5681)
CIO: nmap crashes server with "SocketException: Invalid argument" error (KTOR-5636)
DigestAuthProvider: realm sent from the server doesn't participate in the computation of response (KTOR-4514)
OAuth2: "JsonObject is not a JsonPrimitive" error when server replies with nested JSON object on a token request (KTOR-5669)
CallLogging: logs caused by an exception are suppressed when mdc provider is configured (KTOR-5665)
Metrics: ClassCastException when the DropwizardMetrics plugin is installed after the MicrometerMetrics plugin (KTOR-5595)
ByteBufferChannel throws exception when HttpCache, ContentEncoding and onDownload are used (KTOR-5532)
runBlocking in TestApplicationEngine loses coroutineContext (KTOR-5525)
Incorrect handling of private cache directive in HttpCachePlugin (KTOR-5570)
The default implementation of challengeFunction is empty, causing no session users to access protected resources (KTOR-5467)
Wrong ContentType for .mjs files (KTOR-5533)
Non-standard Content-Type headers for static files (KTOR-5311)
CIO: Client fails to parse response without Content-Length, Connection headers and chunked transfer encoding (KTOR-5327)
Conflict between ContentNegotiation and Mustache plugins (KTOR-5337)

2.2.4

Published 28 February 2023

Bugfixes

Connect timeout is not respected when using the HttpRequestRetry plugin (KTOR-5466)
URLs with underscore fail to parse correctly in HTTP client request (KTOR-5591)
Routing: Wrong content-type results in 405 instead of 415 status code with two routes (KTOR-5535)
Compressing the response will result in unexpected ERROR log output after processing in the StatusPages (KTOR-5510)
Javadoc for Resources.kt cannot be compiled (KTOR-5492)
ContentNegotiation: The "charset=UTF-8" part is added for the Content-Type header (KTOR-3799)
kotlinx.serialization.SerializationException is lost for the classes that have generic type parameters (KTOR-5448)
OkHttp: Cancelling while writing to ByteWriteChannel when overriding WriteChannelContent causes propagation of CancellationException to a caller (KTOR-5518)

2.2.3

Published 31 January 2023

Improvements

ContentNegotiation: "Skipping because the type is ignored" log message is unclear (KTOR-5479)
Make OAuth2 functionality multiplatform (KTOR-1144)
Log HTTP request time (KTOR-1250)
Add Client Plugins Trace Logging (KTOR-5264)

Bugfixes

FileStorage throws java.io.FileNotFoundException (File name too long) when request path is long (KTOR-5443)
HttpRequestRetry retries on FileNotFoundException thrown by FileStorage (KTOR-5444)
DropwizardMetricsPlugin logs status code incorrectly when is used together with StatusPages plugin (KTOR-5420)
Server ContentNegotiation no longer allows multiple decoders for one Content-Type (KTOR-5410)
Multipart File doesn't upload whole file, throws "Unexpected EOF: expected 4096 more bytes" for larger files (KTOR-3455)
Netty: Unable to set the tcpKeepAlive (KTOR-5370)
HOCON: CLI parameters don't override custom array properties since 2.1.0 (KTOR-5100)

2.2.2

Published 3 January 2023

Improvements

Resource annotation should be MetaSerializable (KTOR-5397)
The swaggerUI method is too restrictive and cannot be called inside a route (KTOR-5307)
Engine shutdown grace period and timeout are not configurable (KTOR-5359)
Allow specifying immutable in CacheControl (KTOR-3757)

Bugfixes

Server cannot be started with the Swagger plugin (KTOR-5308)
Regression in 2.2.1: Got EOF but at least 0 bytes were expected (5372)
HttpRequestRetry: Memory leak of coroutines objects when using the plugin (KTOR-5099)
iOS unit test deadlocks with DarwinClientEngine (KTOR-5332)
Gzip encoding: IllegalStateException: Expected 112, actual 113 (KTOR-5300)
Netty, HSTS: UnsupportedOperationException is thrown when the server responds before HSTS plugin (KTOR-5276)

2.2.1

Published 7 December 2022

The critical error java.lang.NoClassDefFoundError: kotlinx/atomicfu/AtomicFU in the 2.2.0 release is fixed

2.2.0

Published 7 December 2022

Intergate Swagger UI Hosting as Ktor Feature (KTOR-774)
New plugins API for client (KTOR-5161)
Rate-Limit Support on Server (KTOR-1196)
Make sessions plugin multiplatform (KTOR-4960)
Add the ability to access the route inside a route-scoped plugin (KTOR-5112)
Add a method that returns a list of child routes recursively (KTOR-581)
Support Default Value for missing Env Variables in YAML (KTOR-5283)
Netty: ApplicationStarted event is fired before the server starts accepting connections (KTOR-4259)
parseAuthorizationHeader throws ParseException on header value with multiple challenges (KTOR-5216)
ByteChannel exception: Got EOF but at least 1 byte were expected (KTOR-5252)
Application data in OAuth State parameter (KTOR-5225)
NativePRNGNonBlocking is not found, fallback to SHA1PRNG (KTOR-668)
Not calling call.respond() at server results in 404 for the client (KTOR-721)
Restoring thread context elements when directly resuming to parent is broken (KTOR-2644)
Out of the box ContentConverter for Protobuf (KTOR-763)
Darwin: response is never returned when usePreconfiguredSession is used (KTOR-5134)
List.merge() should have reversed priority (KTOR-5208)
Allow nested authentications to be combined using AND (KTOR-5021)
The swaggerUI plugin should be placed in the io.ktor.server.plugins.swagger package (KTOR-5192)
CORS Plugin should log reason for returning 403 Forbidden errors (KTOR-4236)
The default path to an OpenAPI specification doesn't work for the 'openAPI' plugin (KTOR-5193)
JWT: JWTPayloadHolder.getListClaim() throws NPE when specified claim is absent (KTOR-5098)
Logging: the plugin instantiates the default logger even when a custom one is provided (KTOR-5186)
Java client engine doesn't handle HttpTimeout.INFINITE_TIMEOUT_MS properly (KTOR-2814)
SessionTransportTransformerMessageAuthentication: Comparison of digests fails when there is a space in a value (KTOR-5168)
Support serving OpenAPI from resources (KTOR-5150)
Remove check for internal class in Select (KTOR-5035)
Persistent Client HttpCache (KTOR-2579)
Support native windows HTTP client (KTOR-735)
Add Server BearerAuthenticationProvider (KTOR-5118)
Merged config: "Property *.size not found" error when calling configList method on an array property (KTOR-5143)
"POSIX error 56: Socket is already connected" error when a socket is connection-mode on Darwin targets (KTOR-4877)
StatusPages can't handle errors in HTML template (KTOR-5107)
HttpRequestRetry: Memory leak of coroutines objects when using the plugin (KTOR-5099)
CallLogging and CallId: exceptions thrown in WriteChannelContent.writeTo are swallowed (KTOR-4954)
Temp files generated by multipart upload are not cleared in case of exception or cancellation (KTOR-5051)
Websockets, Darwin: trusting a certificate via handleChallenge doesn't work for Websockets connections (KTOR-5094)
Digest auth: Support returning any objects which implement Principal interface (KTOR-5059)
Add Debug Logging to Default Transformers (KTOR-4529)
No way getting client's source address from IP packet (KTOR-2501)
Add Env Variable to Change Log Level on Native Server (KTOR-4998)
Add Debug Logging for Ktor Plugins and Routing (KTOR-4510)
Add Debug Logging to ContentNegotiation (KTOR-4518)
Add Debug Logging to Routing (KTOR-4524)
Add Debug Logging to Auth Plugin (KTOR-4519)
Add Debug Logging to Status Pages Plugin (KTOR-4527)
Add Debug Logging to PartialContent Plugin (KTOR-4525)
Add Debug Logging to Sessions Plugin (KTOR-4526)
Add Debug Logging to Call Id (KTOR-4520)
Add Debug Logging to WebSockets Plugin (KTOR-4528)
Add Debug Logging to Double Receive Plugin (KTOR-4530)
Add Debug Logging to Compression Plugin (KTOR-4521)
Make certificate generation helpers more flexible (KTOR-5023)
Jackson converter: Support requests with Content-Length header (KTOR-4904)
Add a way to get a client's port (KTOR-430)
Retry and timeout client plugins don't work together (KTOR-4652)
Server Session - Switch to Kotlinx serialization (KTOR-2572)
ApplicationCall.respondRedirect should have overload for Url (KTOR-1538)
Make API to Use Configuration in Application Plugins (KTOR-4533)
Way to block use of TLS 1.0/1.1 when using Ktor/Netty (KTOR-4587)
testApplication: application initialization block isn't eagerly called (KTOR-4819)
testApplication: test server lifecycle management (KTOR-4773)
The beginning character of encodedPath field(Url class) is wrong when relative path (KTOR-621)
Unable to access userPrincipal of servletRequest in ktor-server-servlet (KTOR-4784)
When unable to get JWKS, JWTAuth swallows the underlying exception and only logs the last message (KTOR-636)
CIO Server generates wrong URL for OAuth URL provider using Locations (KTOR-2143)
Inconsistency among server engines when determining port/host of an incoming request (KTOR-4141)
Update Versions of Dependencies (KTOR-5293)

2.1.3

Published 26 October 2022

JS: window.location.origin returns null when executed in iframe via srcdoc attribute (KTOR-4993)
SensitivityWatchEventModifier - Move the reflection call of this modifier out from the Ktor Core (KTOR-1647)
"java.lang.IllegalArgumentException: Failed requirement." in SelectorManagerSupport (KTOR-2914)
HOCON: CLI parameters don't override custom properties since 2.1.0 (KTOR-5000)
Websockets timeout doesn't cause a close of a connection (KTOR-3504)
DefaultHeaders: a header is duplicated in a StatusPages's handler (KTOR-4990)
Websockets: timeout doesn't cause closing of incoming and outgoing channels (KTOR-2430)
RFC 3986 recommendation for encoding URI is NOT followed (KTOR-993)
Cookies: Invalid encoding of cookies' values since 1.4.0 (KTOR-917)
ByteReadChannel is unable to read files with long lines (KTOR-2588)
WebSocketDeflateExtension configureProtocols always failed with stackOverflow (KTOR-4916)
Update Kotlin to 1.7.20 (KTOR-4963)
Netty HTTP/2: response headers contain ":status" header and that leads to IllegalHeaderNameException in the ConditionalHeaders plugin (KTOR-4943)
Maven: ktor-server-test-host-jvm causes dependency error starting from Ktor 2.0.3 (KTOR-4900)
Autoreloading: "Flow invariant is violated" error since Ktor 2.0.3 (KTOR-4926)
Autoreloading: ClassCastException when retrieving plugins in testApplication (KTOR-4729)
CIO engine has wrong doc for request timeout (KTOR-4941)
CIO: A request through a proxy server results in 403 from Cloudflare (KTOR-4925)

2.1.2

Published 29 September 2022

HttpCacheEntry ignoring Request Cache-Control directives (KTOR-4894)
testApplication does not handle port and connectors (KTOR-4875)
Native: Wrong status code when requesting with DELETE method and body (KTOR-3566)
Default host address 0.0.0.0 isn't reachable on Windows (KTOR-4834)
TestApplicationEngine error handling is inconsistent with DefaultEnginePipeline, breaking clients (KTOR-4009)
Routing: Wrong content-type results in 400 Bad Request instead of 415 Unsupported Media type (KTOR-4849)

2.1.1

Published 6 September 2022

CIO: responses are received with a huge delay on JVM Windows (due to reverse DNS lookup internally) (KTOR-4827)
Netty HTTP/2 not working (KTOR-578)
HTTP/2 push fails with Netty engine (KTOR-800)
HttpCookies: no space between cookie pairs (KTOR-3854)
Netty ALPN provider detection not working (KTOR-4712)
CIO: Connection reset by peer on MacOS (KTOR-2036)
CallLogging MDC with sessions: Application feature Sessions is not installed (KTOR-550)
Deprecate Public API with Atomicfu Declarations (KTOR-4774)
Deprecate receiveOrNull because it's confusing (KTOR-4772)
Server ContentNegotiation Plugin doesn't check ignoredTypes for Request Body (KTOR-4770)
IllegalArgumentException is thrown when UnixSocketAddress.path is accessed on JVM (JDK 16+) (KTOR-4695)
WebSocketDeflateExtension not following RFC (KTOR-4696)
The parseWebSocketExtensions function behaves incorrectly (KTOR-3189)
Receive non-Nullable Type Throws NPE in Case of Failure (KTOR-4771)
Darwin: Symbol not found: OBJC_CLASS$_NSURLSessionWebSocketMessage on iOS 12 (KTOR-4159)
Fix Merging Date Headers on the Client (KTOR-4782)
Replace exception in InputStreamAdapter and OutputStreamAdapter constructors with warning message If parking (KTOR-4736)
Clearing Session Cookie in Chrome 80+ with SameSite and Secure (KTOR-437)
The OutgoingContent.toByteArray() stalls when used in combination with a OutgoingContent.WriteChannelContent (KTOR-2126)
Missing Content-Type header in a request (KTOR-1407)
Crash when making requests from browser inside of web worker (KTOR-4715)
An error occurs when there is a binary such as protobuf in the response body of error (KTOR-1619)
CallLogging configured MDC entries are not passed to StatusPages exception handlers (KTOR-4193)
LocalFileContent incorrectly relies on the last modification time of a file to check its existence (KTOR-4707)
Sessions: WSS in combination with Secure cookies throws IllegalArgumentException (KTOR-4697)
Json request failure with configured form authentication (KTOR-678)

2.1.0

Published 11 August 2022

Add YAML Configuration Format Support (KTOR-3572)
Allow overriding HSTS settings per host (KTOR-4578)
CORS: Pattern matching for origin (KTOR-316)
Darwin: Allow setting custom NSURLSession (KTOR-583)
Support setting caching options on call (KTOR-457)
Revert default behavior of string encoding for ContentNegotiation and JsonPlugin (KTOR-4739)
Make Content-Length header validation optional (KTOR-4655)
Client resources plugin miss builders for PATCH method (KTOR-4658)
The awaitSuspend method wakes up early in closed ByteChannelSequential (KTOR-4597)
HttpCache plugin does not support max-stale directive (KTOR-4610)
Incoming request body validation (KTOR-503)
Client does not support sending or receiving json null value (KTOR-745)
Jetty: Content Length exception when body size is greater than 4096 bytes (KTOR-4622)
Darwin: configureRequest doesn't actually configure a NSMutableURLRequest when HTTP request is made (KTOR-4719)
OAuth2: Allow sending extra parameters for authorization and access token requests (KTOR-2128)
Java engine: Allow configuring HTTP version (KTOR-4609)
ContentEncoding: body<ByteArray>() receives truncated array (KTOR-4653)
Support configuring Netty codec limits via application config (KTOR-4636)
[OkHttp] StreamRequestBody should override isOneShot or allow multiple reads of request body (KTOR-4637)
OverridingClassLoader fails to delegate to parent for resources (KTOR-4004)
OkHttp and iOS: request with only-if-cache directive in Cache-Control header fails with 504 when match is stale (KTOR-4127)
Allow Pebble to use Accepted Language header for built-in i18n support (KTOR-4593)
Test engine can't handle concurrent requests (KTOR-4572)
Parameters of cloned UrlBuilder affect parameters of an original builder (KTOR-4573)
Reified type causes ApplicationCall.receive() throw UnsupportedOperationException (KTOR-3715)
ApplicationConfig lacks the ability to export a part of the config to a third-party library (KTOR-4416)
Path parameter doesn't get encoded in type safe requests (KTOR-3953)
Update Kotlin to 1.7.0 (KTOR-4450)
Bump jteVersion from 2.0.3 to 2.1.2 (KTOR-4648)

2.0.3

Published 28 June 2022

Development mode class loader leads to ClassCastException within a CouroutineScope (KTOR-4164)
Validate that the body of an incoming request is received completely (KTOR-4379)
UrlBuilder escapes fragment parameters (KTOR-4412)
CallLogging: JVM crashes when jansi checks whether a file descriptor refers to a terminal (KTOR-3476)
WebSocket client closes connection due to an HTTP request timeout (KTOR-4419)
[JS client] Cannot change redirect policy by followRedirects=false (KTOR-326)
CIO engine doesn't apply a request timeout from the HttpTimeout plugin (KTOR-4473)
CIO: Websockets request doesn't include query parameters (KTOR-4390)
Ignore SIGPIPE for server sockets (KTOR-4474)
Direct byte buffers are increased in size when server slowly processes request (KTOR-4397)
UDP responses are received with a huge delay on JVM Windows (due to reverse DNS lookup internally) (KTOR-4423)
"No instance for key AttributeKey: ApplicationPluginRegistry" when exception is thrown during the Call phase (KTOR-4448)
Non-decipherable exception "No result transformation found" (KTOR-4287)
Unable to set the Content-Type header in a request (KTOR-620)
Update kotlinx.coroutines to 1.6.2 (KTOR-4451)
Support the HttpTimeout capability in the DelegatingTestClientEngine (KTOR-4436)
Limit the number of parallel running requests in Netty (KTOR-4575)
Resources plugin fails to process parameters of type UShort (KTOR-4424)
Resources plugin doesn't respect default values for Enum (KTOR-4411)
Invalid request line produced by CIO engine for URL with parameters and without path (KTOR-4347)
call.receiveText() tries to parse body as JSON when the ContentNegotiation plugin is installed (KTOR-4426)
Ignore ByteReadChannel as receive type in ContentNegotiation (KTOR-4511)
Setting body to TextContent leads to NPE when the ContentNegotiation plugin is installed (KTOR-4383)
submitFormWithBinaryData call leads to NPE when the ContentNegotiation plugin is installed (KTOR-4269)
ResponseConverter NPE when returning ByteArray with the ContentNegotiation plugin (KTOR-4399)

2.0.2

Published 27 May 2022

[iOS] Prevent HttpClient from persisting cookies across requests (KTOR-3748)
Web feedback from "Creating HTTP APIs", https://ktor.io/docs/creating-http-apis.html (KTOR-4380)
When returning a String, content negotiation is ignored (KTOR-662)
HttpResponse.bodyAsChannel should not be converted by ContentNegotiation (KTOR-4341)
Strings are not decoded when received as application/json (KTOR-385)
Document how to enable/disable HTTP/2 for different client engines (KTOR-4340)
Revert Dokka to 1.6.10 due to Publication Freeze (KTOR-4290)
Document a new memory model in KMM tutorial (KTOR-4354)
Make client docs less JVM-centric (KTOR-4351)
Darwin engine: Client connection is closed after each request (KTOR-4145)
Ios: NullPointerException when query parameters contain cyrillic symbols in values (KTOR-1858)
A native application with the Darwin engine doesn't make a request (KTOR-3900)
Darwin and Kotlin/JS: "List has more than one element" error when header like Content-type is duplicated in a response (KTOR-4105)
Invalid response without error (KTOR-369)
Invalid HTTP version should fail (KTOR-380)
The colon after the host parameter requires a port (KTOR-382)
Kotlin/Native: testApplication's client sometimes fails to receive ByteArray response from a route (KTOR-4197)
"Application started" is never printed (KTOR-4319)
Default request without explicit port sets port 80 for all requests (KTOR-4281)
Documentation about how to configure libcurl on Windows (KTOR-3988)
API Docs reference RFCs. Better to reference our own documentation (KTOR-3764)
UninitializedPropertyAccessException in the handleResponseExceptionWithRequest when request or response are accessed through (KTOR-4230)HttpClientCall
The original exception is swallowed by "No request transformation found" exception when request body is serializable object (KTOR-4160)
IncorrectDereferenceException when trying to create HttpClient from background thread on iOS (KTOR-4263)
JacksonWebsocketContentConverter.deserialize just doesn't work (KTOR-4248)
Documentation for migration of Authentication server plugin (KTOR-4253)
Add sample for the AuthenticationChecked hook (KTOR-4278)
Web feedback from "Docker", https://ktor.io/docs/docker.html (KTOR-4282)
Route's path parameters are empty when ApplicationCall.authentication is first accessed in a different ApplicationCall context (KTOR-4250)
Routes with tailcard should not count for specific http error codes (KTOR-4280)
Documentation for appending query parameters for URL in the DefaultRequest (KTOR-4252)
Routing returns 405 even for not completely matched paths (KTOR-4267)
Resources: builder methods return routes with PathSegmentConstantRouteSelector instead of HttpMethodRouteSelector (KTOR-4239)
Update Netty to 4.1.77.Final (KTOR-4339)
External services should use config from environment (KTOR-4373)
Update Jackson to 2.13.3 (KTOR-4394)

2.0.1

Published 28 April 2022

Fix URL representation (KTOR-4241)
embeddedServer for CIO and Netty inconsistency (KTOR-755)
Update Coroutines to 1.6.1 (KTOR-4240)
Locations: Support trailing / (KTOR-836)
Resources: Make Route.handle public (KTOR-4200)
Fix CURL flaky initialization (KTOR-4223)
Optimize Slow Native Tests (KTOR-4224)
Print Native Stacktrace on Timeout (KTOR-4198)
"""IllegalStateException: Operation is already in progress"" when the readByte is called the second time after a timeout" (KTOR-4218)
Update Kotlin to 1.6.21 (KTOR-4221)
Update code for editing an article in the 'Interactive website' tutorial (KTOR-4227)
DefaultRequest: HTTPS protocol isn't set when using Ktor 2.0.0 (KTOR-4142)
DefaultRequest: host and port aren't used for a request (KTOR-4154)
A table with test methods should span the entire width of the dialog (KTOR-4064)
StatusPages plugin does not handle most specific exception in Ktor 2.0.0 (KTOR-4187)
Behaviour of ApplicationEngine start method not documented properly (KTOR-2271)
CORS plugin should be route scoped (KTOR-4157)
Raw Web Socket Connection Suspending Forever (KTOR-4166)
StatusPages: SerializationException isn't handled when CallID plugin is installed after StatusPages plugin (KTOR-4155)
HttpClient.wss defaults to port 80 instead of 443 (KTOR-4175)
Missing subject parameter in StatusPages status config method (KTOR-4191)
ConditionalHeaders cause the Last-Modified header appears twice in a response (2.0.0) (KTOR-4163)
DefaultHeaders: The Server header appears twice in a response (2.0.0) (KTOR-4152)
Testing: Resolving a substitution to a value in default config fails when custom HOCON config is used (KTOR-4130)
Combination of HttpCache and Logging plugins cause receiving incomplete response body for chunked replies (KTOR-3916)
2.0.0

Published 11 April 2022

HttpClient breaks permanently when certain exceptions occur while consuming ByteReadChannel (KTOR-3140)
Fix Dokka publication for 2.0.0 (KTOR-4194)
[Doc] invalid KDoc link for https://ktor.io/docs/http-client-engines.html#darwin (KTOR-4165)
Update the 'Manual Configuration' help link after the 2.0.0 release (KTOR-3678)
Where did 1.6.8 docs go? (KTOR-4147)
Fail to create response observer in different native thread. (KTOR-3278)
"Ktor app with Kotlin/Native fails with ""There is no event loop. Use runBlocking { ... } to start one.""" (KTOR-4149)
Update limitations for Kotlin/Native (KTOR-4143)
UDP sockets on native (KTOR-1159)
Ktor stopped working with latest Tomcat 9.0.39 (KTOR-1172)
Update to Kotlin 1.6.20 (KTOR-4107)
ContentNegotiation: the plugin removes Content-Type header even when a matching registration is not found (KTOR-4091)
JMXReporter not included in ktor-metrics:1.6.8 (KTOR-4102)
Performance Issue / Ktor & Netty (KTOR-610)
httpMethod is not affected by X-Http-Method-Override (in opposite to docs) (KTOR-404)
Android: Failed resolution of: Ljava/nio/file/Paths using API 25 and lower (KTOR-3269)
ContentNegotiation plugins don't accept null-responses from ContentConverts (KTOR-3346)
Using proguard and CallLogging feature causes JVM crashes (KTOR-3345)
Remove checking body transformation from ContentNegotation (KTOR-3272)
Feature: Use websockets with serialization (KTOR-423)
Fix testErrorHandling with JS (KTOR-3510)
[netty] Headers are only flushed after first byte is written (KTOR-3364)
AttributeKey instance is identified by its identity instead of its name (KTOR-3538)
HttpCookies: parse / in the name of a cookie (KTOR-3497)
Returning Thymeleaf fragments from Routes (KTOR-3624)
Rewrite Thymeleaf to New Plugins API (KTOR-3687)
Rewrite HSTS to new plugins API (KTOR-3752)
Rewrite FreeMarker to new Plugins API (KTOR-3751)
Rewrite CachingHeaders to New Plugins API (KTOR-3688)
Implementation for Single Page Plugin (KTOR-3635)
Sockets no longer working on Android since 2.0.0-beta-1 (KTOR-3659)
Implementation for Single Page Plugin (KTOR-3577)
Content Negotiation: Gson: Should be able to return 400 for badly formatted request. (KTOR-373)
Rewrite ConditionalHeaders to New Plugins API (KTOR-3759)
Single Page Plugin (KTOR-3531)
HttpResponseValidator.handleResponseException should have access to request to provide valuable information in exceptions (KTOR-3652)
Build in feature for Single PAge Applications (KTOR-515)
"ContentNegotiation: The ""charset=UTF-8"" part is added for the Content-Type header" (KTOR-3799)
Rewrite Netty Engine (KTOR-3467)
SinglePageApplication plugin returns 404 for non-existent paths (KTOR-3944)
Split packages in KTOR Client 2.00-BETA-1 (KTOR-4106)
Support WebSockets in Darwin engine (KTOR-4093)
Ktor http client with java engine uses incorrect timeout. (KTOR-4058)
ktor-client performance (KTOR-506)
InvalidPathException in ApplicationEngineEnvironmentReloading (KTOR-3831)
"Screenshot with the new project wizard on the ""Create a new project"" topic is outdated" (KTOR-4020)
Add possibility to fully configure metricName in ktor-server-metrics-micrometer (KTOR-3302)
Adding Native support to ktor-server-html-builder for 2.0.0 release (KTOR-3972)
Ktor: Allow overriding coroutine dispatcher in MockEngine (KTOR-3230)
HttpClient request hangs when Logging plugin is installed (KTOR-3970)
Ktor uses too much memory compared to other Http server libraries (KTOR-3903)
[client] MPP WebSockets client (KTOR-751)
Native websocket client support (KTOR-599)
Don't perform migrations for MPP projects (KTOR-3812)
Change visibility from internal to public to HttpResponse and HttpClientCall (KTOR-3984)
Rename the 'header' function to 'allowHeader' for consistency with similar functions (KTOR-3980)
The CallID plugin missing in a New Project wizard (KTOR-2911)
IDEA plugin missing the Session authentication (KTOR-3359)
Install plugin completion doesn't work with custom built version of Ktor from main (KTOR-4031)
Memory leak when Compression plugin is installed (KTOR-4028)
Make most useful hooks public (KTOR-3797)
The ShutDownUrl sample doesn't work in the latest EAP (KTOR-4025)
OAuth: scopes are separated by + that's encoded to %2B (KTOR-3945)
The Caching headers plugin stops working in the latest EAP (KTOR-4022)
The 'allowHeadersPrefixed' and 'allowHeaders' CORS functions works incorrectly (KTOR-3979)
Migrate Generator to New Testing API (KTOR-3763)
Support receiving OAuth code response as form post (KTOR-3342)
Ktor test websocket call hangs (KTOR-4000)
Implementation for Create ktor-test module with mocks of engine and clients for writing tests (KTOR-3236)
Remove mutex from call logging (KTOR-3987)
Add jte template support (KTOR-3749)
No contextual serializers when KotlinxSerializationConverter is used (KTOR-3782)
Add support for list size methods in PlaceholderList (KTOR-3940)
Missing headers in OutgoingContent (KTOR-3758)
ResponseObserver does not respect MDC context (KTOR-2435)
Binary compatibility issue with ktor-2.0.0-beta1 when using JDK 1.8 (KTOR-3645)
Enhance api for ConditionalHeaders usage (KTOR-728)
localization issue with new project wizard - plugin page (KTOR-3943)
IDE action to migrate to 2.0.0 (KTOR-3225)
Add colors to CLI client (KTOR-3929)
Support macOs M1 in CLI generator (KTOR-3922)
Bearer Auth: refreshTokens callback blocks indefinitely when server returns 401 (KTOR-3795)
"ContentEncoding: ""Unexpected EOF: expected 10 more bytes"" when trying to decode HEAD response" (KTOR-3781)
Memory leak in ktor-client-curl (KTOR-3767)
Rename ApplicationPlugin<A, B, C> to BaseApplicationPlugin<A, B, C> (KTOR-3873)
Ktor Server and double receive break receiving of big files (KTOR-3832)
Setting Content-Length Header manually when using call.respondOutputStream (KTOR-560)
Support for adding values to the MDC later on in the pipeline. (KTOR-536)
Default request: Query parameters in default URL are overwritten (KTOR-3793)
Timeout in receiving streaming body breaks client (KTOR-3704)
Setting DefaultRequest.url.protocol on the client side breaks the ability to establish a ws connection (KTOR-3890)
Rename the 'io.ktor.resources.serialisation' package to '...serialization' for consistency (KTOR-3842)
Generator performance: cache Maven requests (KTOR-3866)
JS: Websocket errors are not being handled correctly (KTOR-1726)
Logback transient depencency from ktor-server-test-host (KTOR-2038)
Ktor plugin is asking to migrate to EAP versions (KTOR-3609)
"Module ""io.ktor:ktor-network (io.ktor:ktor-network-iosarm64)"" has a reference to symbol kotlinx.coroutines/SingleThreadDispatcher|null[0]" (KTOR-3562)
Retry on HttpCode or network error (KTOR-572)
Server hangs indefinitely when responding to requests on android using version 2.0.0 (KTOR-3653)
IllegalStateException when writing in coroutine context backed by more than one thread (KTOR-3801)
References for kotlinx.serialization plugin sample code in a new Ktor project created with Maven build system are unresolved (KTOR-3754)
multipart/form-data requests: No way of streaming data asynchronously (KTOR-3825)
Migrate ForwardHeaderSupport to new API (KTOR-3677)
Sort endpoints in Endpoint view and when creating tests (KTOR-3725)
StackOverflowError when opening Enpoints view with local Routing function (KTOR-3816)
Provide an example how to use new MultiPartFormDataContent (#KTOR-325) (KTOR-3549)
Client docs for desktop are misleading (KTOR-3813)
When working with SessionStorage, write is called every time after read (KTOR-3336)
DefaultRequest API doc contains missing members (KTOR-3800)
testApplication: Add https EngineConnector (KTOR-3810)
Rewrite HttpsRedirect to New Plugins API (KTOR-3668)
Rewrite WebJars to New Plugins API (KTOR-3667)
Rewrite Metrics to New Plugins API (KTOR-3666)
Rewrite PartialContent to New Plugins API (KTOR-3665)
Rewrite CallId to New Plugins API (KTOR-3352)
Drop Before/After from new plugins API (KTOR-3803)
Performance: Don't store PSI elements in Ktor Url Mappings. Use Smart Reference or PSI Anchor, instead (KTOR-3789)
Infrastructure: Build with JDK 11 for all modules fails: Can't inline metric micrometer because it uses jvm target 8 (KTOR-3712)
The 'refreshTokens' callback isn't invoked when an API returns a 401 response without the 'WWW-Authenticate' header (KTOR-3516)
Add DslMarker to testApplication builder (KTOR-3783)
Prohibit Nesting of install Blocks for Client and Server Configuration (KTOR-3333)
In docs and generated Gradle, Prometheus is misspelled as Promteteus (KTOR-3792)
submitFormWithBinaryData: mutation attempt of frozen @194c6a8 (KTOR-2947)
iOS: Failed to find HttpClientEngineContainer with new native memory model (KTOR-3517)
Rewrite CallLogging to new plugins API (KTOR-3351)
Drop @ExperimentalTime (KTOR-3595)
Using any Suspend or Coroutine function in Bearer Auth functions cause crash on iOS (KTOR-3177)
[iOS] InvalidMutabilityException: mutation attempt of frozen (KTOR-1223)
InvalidMutabilityException: Configuration issues for ios (KTOR-1251)
iOS testing MockEngine issue (KTOR-1541)
"""InvalidMutabilityException: Frozen during lazy computation"" when using by lazy for HttpClient" (KTOR-1087)
kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlin.collections on iOS when deserializing class that contains less properties than the json (KTOR-2740)
Native: Cannot mutate objects inside onDownload and onUpload lambdas (KTOR-3068)
"HttpClient / native: ""mutation attempt of frozen"" crash when configuring the client" (KTOR-1628)
Ktor Kotlin Multiplatform leak (KTOR-3586)
Put label to local history before performing migration in Ktor (KTOR-3716)
StatusPages plugin continues call after calling handler (KTOR-3707)
StatusPages not returning code 500 on catched exception (KTOR-3721)
Rewrite Compression to New Plugins API (KTOR-3661)
Rewrite Auto Head to New Plugins API (KTOR-3670)
Rewrite DoubleReceive to New Plugins API (KTOR-3672)
Make default charset UTF-8 when using receiveText for application/json request (KTOR-789)
Rewrite CORS to New Plugins API (KTOR-3663)
Rewrite Auth to New Plugins API (KTOR-3660)
Rewrite Sessions to New Plugins API (KTOR-3664)
Rewrite ContentNegotiation to New Plugins API (KTOR-3669)
Rewrite MethodOverride to New Plugins API (KTOR-3662)
Client logging: no description of default loggers' behavior on different platforms (KTOR-3421)
Update logback and slf4j (KTOR-3733)
NoClassDefFoundError is thrown on Android because ktor-utils references a not supported Java API (KTOR-3690)
Ktor-Utils references a Java API not supported by Android (KTOR-3426)
Migrate plugins to multiplatform (KTOR-3539)
ByteBufferChannel leaves unflushed data after partial readAvailable causing Apache client request to stall (KTOR-3730)
Migrate DefaultHeaders to new API (KTOR-3676)
ByteReadPacket.headerSizeHint is unused (KTOR-3632)
Hooks don't work with routing scoped plugins (KTOR-3740)
Client request builder: add shortcuts for authentication headers (KTOR-2876)
Pull Request - KTOR-404 Introduce support for X-Http-Method-Override (KTOR-1825)
Can't set a base url that includes path data (KTOR-730)
Mention about closing ActorSelector manager (KTOR-269)
Migrate to new kotlinx.coroutines and limited dispatcher(revert corePoolSize option) (KTOR-3463)
Routing is called for handled requests (KTOR-3732)
TomCat Documentation (KTOR-2395)
default resource package don't work (KTOR-3722)
webSocketSession method suspends indefinitely when there in connection error (Ktor beta) (KTOR-3654)
FUS metrics in IDE (KTOR-2775)
Update Documentation and Code for DoubleReceive Feature (KTOR-1876)
Add Defaults for the server.stop Method (KTOR-3505)
HTTP/2 not working with Netty (KTOR-3705)
Include changes from hands-on PR: Update 03_customer-routes.md #120 (KTOR-3713)
Nested routing fails to match route (KTOR-1626)
URLBuilder from string with trailing slash or from Url with no trailing slash, produces double slash when appending segments (KTOR-3618)
Provide the capability to generate WebSocket tests (KTOR-3061)
Add modulepath support for Java >= 9 (KTOR-619)
HttpRequestRetry plugin expects Retry-After header value to be in milliseconds (KTOR-3634)
StringValuesBuilder.appendIfNameAbsent appends only if name is already present (KTOR-3650)
Migrations of the client code are not working for queries with non-trivial expression body (KTOR-3703)
Curl Cinterop compilation is failed on MacOS (KTOR-3681)
Compression slow due to using BEST_COMPRESSION for deflate/gzip (KTOR-3680)
Could not resolve: io.ktor:ktor-locations:2.0.0-beta-1 on a new project created with IDEA 2021.3.1 (KTOR-3639)
Update URL for the 'Adding Ktor dependencies' topic and add redirects (KTOR-3673)
Support package split in Ktor migrations in plugin (java modules support) (KTOR-3679)
Rewrite StatusPages with the new plugins API (KTOR-3312)
"Save ""Create Run Configuration automatically"" within .idea directory" (KTOR-3282)
java.lang.NoSuchMethodError: java.nio.ByteBuffer.limit(I)Ljava/nio/ByteBuffer when Ktor is built with JDK 9+ (KTOR-1398)
TestHttpClientEngine doesn't support HTTPS requests (KTOR-3614)
Endpoints view: Endpoints not populated if routes require authentication (KTOR-3182)
Insecure user session samples in documentation (KTOR-3582)
HttpRequestTimeoutException should not inherit CancellationException in ktor http client (KTOR-3192)
Update Documentation and Code for HSTS Feature (KTOR-1878)
Reduce the number of versions displayed in a plugin (KTOR-3250)
Update Documentation and Code for Webjars Feature (KTOR-1885)
XForwardedHeaderSupport should let you specify which index (from end) to choose (KTOR-565)
Make migrations more configurable (KTOR-3617)
EAP Naming: main-number conflicts with dependencies (KTOR-2724)
ktor.io/learn typo (KTOR-3563)
Update Documentation and Code for HttpsRedirect Feature (KTOR-1879)
Provide better support for Ktor clients (KTOR-883)
Multiple messages around upgrading to new version (KTOR-3494)
HttpRequestRetry in KTOR 2.0 should allow for request altering between retries (KTOR-3544)
Deploy Ktor application to docker topic contains hard coded project name (KTOR-2852)
Improvements for Docker sample in documentation (KTOR-3294)
"""io.ktor.serializaion.gson"" - package naming in 2.0" (KTOR-3527)
Drop client.get Operator Because of Ambiguity with get(URL) (KTOR-3487)
"Option ""Add imports for Ktor modules automatically"" doesn't work" (KTOR-3226)
Migrations are unavailable (KTOR-3570)
Pull Request - fix #1970 - update MultiPartFormDataContent to allow contentType override using optional builder (KTOR-1833)
Pull Request - KTOR-1264 - Add UUID to DefaultConversionService (KTOR-1815)
Pull Request - Intercept pipeline at Setup phase for XForwardedHeaderSupport feature… (KTOR-1844)
Pull Request - Add locale to ThymeleafContent (KTOR-1838)
Objections to changing boundary to internal on MultiPartFormDataContent? (KTOR-325)
Fix Log Size for Java 11 Windows Build (KTOR-3535)
ByteChannelSequential freezes after closing due to race condition (KTOR-2776)
Apple Arm: 'Resolving NPM dependencies using yarn' returns 139 (KTOR-3561)
Change log level from INFO to ERROR for tests only (KTOR-3466)
Responding without contentLength freezes on CIO native (KTOR-3492)
webSocketSession freeze every time (KTOR-3460)
Exceptions are Swallowed in HttpClient.wss block (KTOR-3461)
Support receiving headers before sending body in CIO client engine (KTOR-3491)
Build and test on Apple Silicon Arm (KTOR-3248)
Prototype anchors in new plugins API (KTOR-3392)
Rename the 'Ios' client engine to more generic term to cover all Apple operating systems (KTOR-3394)
Update Samples to Ktor 2.0 (KTOR-3218)
Implement new Locations feature (KTOR-1706)
Fix old metadata publication (KTOR-3469)
JS Client doesn't support ServiceWorker (KTOR-3448)
Move Server Related Code from ktor-http-cio to ktor-server-cio (KTOR-3462)
Add Check if Feature is installed for WebSocket builders (KTOR-3459)
With test application should load environment from the application.conf (KTOR-2794)
TestEngineApplication - implement HttpClient API (KTOR-2416)
Inconsistent TestApplicationRequest and Client HttpRequestBuilder API's (KTOR-1246)
Server features instead of client in the client install block (KTOR-3412)
ContentNegotiation is missing in the plugins completion window (KTOR-3411)
Code Snippets use Groovy in build files as opposed to default Kotlin option for Wizard (KTOR-2190)
Improve documentation for native/Apple client engines (KTOR-3375)
IJ locked after attempt to create new run config in a dialog (KTOR-3385)
"High CPU consumption/Lock after project opening in org.jetbrains.kotlin.storage.getValue ; org.jetbrains.kotlin.idea.caches.resolve.IdeaResolverForProject" (KTOR-3337)
Update Ktor Plugin Description (KTOR-3388)
Add explicit menu action for migration (KTOR-3400)
Project Generated with eap-256 has Errors in Imports (KTOR-3397)
Update non-generic samples to 2.0 (KTOR-3285)
Support New Native Memory Model (KTOR-3217)
Simplify plugin descriptions in wizard, remove empty options (KTOR-3386)
Server for Kotlin Native (KTOR-746)
call.request.queryParameters decode plus as space (KTOR-3297)
Migrate existing plugins to RoutingScoped (KTOR-3201)
Bearer Authentication: Queue requests until refresh of tokens is completed (KTOR-3325)
Article about storing sensitive data and accessing it in application.conf (KTOR-3340)
Add parameter for specifying content-length in ApplicationCall#respondBytes (KTOR-3087)
Update Documentation and Code for CallId Feature (KTOR-1874)
Passing port 0 to start server on random port doesn't publish correct port to log (KTOR-3288)
Allow application environment configuration when running via commandLineEnvironment (KTOR-3027)
XForwardedHeaderSupport is installed late in the pipeline (KTOR-731)
Add locale to ThymeleafContent (KTOR-3313)
Add support for ports in withTestApplication (KTOR-725)
Error in 2.0 doc/sample for HttpClient retry (KTOR-3303)
Cyclic dependency issue in latest 2.0 (main branch) (KTOR-3240)
An error occurred when running a sample with the configured XML serializer (KTOR-3286)
respondOutputStream behind nginx fails (KTOR-346)
XML Support in Ktor (KTOR-489)
Start ktor server on random port (KTOR-686)
ProxyConfig.type checking for DIRECT instead of SOCKS (KTOR-1733)
Freeze the screen when I create routes (KTOR-3004)
Client: DefaultRequest apply defaults before request builder (KTOR-2877)
KDoc: HttpRequestBuilder.header actually appends header value, does not set it (KTOR-2492)
parameterOf() should have a variant that takes in a Map<String, List> (KTOR-399)
TLS relared tests are failing on CI (KTOR-3224)
[Ktor Client] CborFeature (KTOR-3174)
Jackson: receiveOrNull crashes with an exception when sending empty content (KTOR-727)
Jackson-backed ApplicationCall.receive does not throw ContentTransformationException (KTOR-614)
Remove Obsolete Check Cast from SuspendFunctionGun (KTOR-3178)
Ktor: Fold internal stack frames for HTTP server (KTOR-2274)
Support 2.0.0 in IDE (KTOR-3196)
Client HttpCache feature is not documented (KTOR-1279)
Feature to Plugin changes in Documentation (KTOR-2372)
Update server dependencies and imports in docs for 2.0.0 (KTOR-3150)
Add method to Client and ServerResponseException (KTOR-3128)
Add UUID to DefaultConversionService (KTOR-1264)
Prioritize text found in feature titles over descriptions (KTOR-2488)
SerializationException when serializing request body object of generic class type (KTOR-1019)
The 'Create test for Ktor module' intention actions changes files from other modules for a multimodule Gradle project (KTOR-3062)
Implementation for Simple API for writing features (KTOR-2480)
Wizard Plugin listing strange link (KTOR-2882)
Add filtering support in Ktor client response interceptor (KTOR-2992)
Nothing happens when no test routes is selected when generating Ktor test for module (KTOR-3095)
The 'Create test for Ktor module' intention action doesn't create any tests if routes are defined inside the extension function (KTOR-3079)
Allow using the client itself inside Auth plugin in the refreshTokens lambda. (KTOR-2977)
ADE at io.ktor.ide.plugins.add.KtorMarketplacePluginsUpdater.checkForUpdates (KTOR-3076)
Define completion priorities for Ktor keywords (KTOR-2773)
Adding features action in IDE (KTOR-2893)
Ktor Client JS: request to /example requests http://localhost/example (KTOR-453)
URLBuilder: Move Default Values to build() function (KTOR-1345)
Implement design about moving features from ktor-server-core (KTOR-1239)
Move server code to io.ktor.server.* package (KTOR-2865)
Impossible to modify response headers (KTOR-2822)
ApplicationConfig: how to iterate over keys and values of config (KTOR-2318)
Missing Locations params result in 404 instead of 400 (KTOR-447)
Implementation for Events Feature For Client Metrics (KTOR-2472)
Should return 405 when route exists but not for given method instead of 404 (KTOR-737)
Fix 2.0.0 branch compilation (KTOR-2603)
Query of pre-signed URL has been altered after decode and re-encode process (KTOR-778)
ApplicationCall.locationOrNull raises error (KTOR-1684)
ContentConverter.convertForSend should receive a KType (KTOR-444)
Make body nullable for request builder (KTOR-1400)
Send 100 Continue response only when getting a request to receive IncomingContent (KTOR-855)

1.6.8

Published 14 March 2022

Update Gradle to 7.4
Update Kotlin to 1.6.10
Migrate gradle to version catalog
Update logback version to 1.2.11 (KTOR-3935)
Update atomicfu to 0.17.1
Update netty to 4.1.74.Final
Update netty-tcnative to 2.0.45.Final
Update jetty to 9.4.45.v20220203
Update tomcat to 9.0.59
Update apache to 4.1.5
Update okhttp to 4.9.3
Update gson to 2.9.0
Update jackson 2.13.1
Update slf4j to 1.7.36
Update node-fetch to 2.6.7
Update js ws package to 8.5.0
Revert wrong check to prevent anyHost with allowCredentials (KTOR-2872

2.0.0-beta-1

Published 23 December 2021

EAP Naming: main-number conflicts with dependencies (KTOR-2724)
ktor.io/learn typo (KTOR-3563)
Multiple messages around upgrading to new version (KTOR-3494)
Deploy Ktor application to docker topic contains hard coded project name (KTOR-2852)
Improvements for Docker sample in documentation (KTOR-3294)
"io.ktor.serializaion.gson" - package naming in 2.0 (KTOR-3527)
Drop client.get Operator Because of Ambiguity with get(URL) (KTOR-3487)
Option "Add imports for Ktor modules automatically" doesn't work (KTOR-3226)
Migrations are unavailable (KTOR-3570)
AttributeKey instance is identified by its identity instead of its name (KTOR-3538)
Fix Log Size for Java 11 Windows Build (KTOR-3535)
ByteChannelSequential freezes after closing due to race condition (KTOR-2776)
Apple Arm: 'Resolving NPM dependencies using yarn' returns 139 (KTOR-3561)
Change log level from INFO to ERROR for tests only (KTOR-3466)
Responding without contentLength freezes on CIO native (KTOR-3492)
webSocketSession freeze every time (KTOR-3460)
Exceptions are Swallowed in HttpClient.wss block (KTOR-3461)
Support receiving headers before sending body in CIO client engine (KTOR-3491)
[netty] Headers are only flushed after first byte is written (KTOR-3364)
Fix testErrorHandling with JS (KTOR-3510)
Build and test on Apple Silicon Arm (KTOR-3248)
Fix old metadata publication (KTOR-3469)
Remove checking body transformation from ContentNegotation (KTOR-3272)
Ktor-Utils references a Java API not supported by Android (KTOR-3426)
With test application should load environment from the application.conf (KTOR-2794)
Inconsistent TestApplicationRequest and Client HttpRequestBuilder API's (KTOR-1246)
Server features instead of client in the client install block (KTOR-3412)
Using proguard and CallLogging feature causes JVM crashes (KTOR-3345)
ContentNegotiation is missing in the plugins completion window (KTOR-3411)
Code Snippets use Groovy in build files as opposed to default Kotlin option for Wizard (KTOR-2190)
IJ locked after attempt to create new run config in a dialog (KTOR-3385)
ContentNegotiation plugins don't accept null-responses from ContentConverts (KTOR-3346)
High CPU consumption/Lock after project opening in org.jetbrains.kotlin.storage.getValue ; org.jetbrains.kotlin.idea.caches.resolve.IdeaResolverForProject (KTOR-3337)
Update Ktor Plugin Description (KTOR-3388)
Project Generated with eap-256 has Errors in Imports (KTOR-3397)
Update non-generic samples to 2.0 (KTOR-3285)
Simplify plugin descriptions in wizard, remove empty options (KTOR-3386)
Bearer Authentication: Queue requests until refresh of tokens is completed (KTOR-3325)
Article about storing sensitive data and accessing it in application.conf (KTOR-3340)
Android: Failed resolution of: Ljava/nio/file/Paths using API 25 and lower (KTOR-3269)
IDE action to migrate to 2.0.0 (KTOR-3225)
Passing port 0 to start server on random port doesn't publish correct port to log (KTOR-3288)
XForwardedHeaderSupport is installed late in the pipeline (KTOR-731)
Error in 2.0 doc/sample for HttpClient retry (KTOR-3303)
Cyclic dependency issue in latest 2.0 (main branch) (KTOR-3240)
An error occurred when running a sample with the configured XML serializer (KTOR-3286)
respondOutputStream behind nginx fails (KTOR-346)
ProxyConfig.type checking for DIRECT instead of SOCKS (KTOR-1733)
Freeze the screen when I create routes (KTOR-3004)
httpMethod is not affected by X-Http-Method-Override (in opposite to docs) (KTOR-404)
Client: DefaultRequest apply defaults before request builder (KTOR-2877)
KDoc: HttpRequestBuilder.header actually appends header value, does not set it (KTOR-2492)
TLS relared tests are failing on CI (KTOR-3224)
Jackson: receiveOrNull crashes with an exception when sending empty content (KTOR-727)
Content Negotiation: Gson: Should be able to return 400 for badly formatted request. (KTOR-373)
Jackson-backed ApplicationCall.receive does not throw ContentTransformationException (KTOR-614)
Remove Obsolete Check Cast from SuspendFunctionGun (KTOR-3178)
Support 2.0.0 in IDE (KTOR-3196)
Client HttpCache feature is not documented (KTOR-1279)
Update server dependencies and imports in docs for 2.0.0 (KTOR-3150)
Prioritize text found in feature titles over descriptions (KTOR-2488)
SerializationException when serializing request body object of generic class type (KTOR-1019)
The 'Create test for Ktor module' intention actions changes files from other modules for a multimodule Gradle project (KTOR-3062)
Wizard Plugin listing strange link (KTOR-2882)
Nothing happens when no test routes is selected when generating Ktor test for module (KTOR-3095)
The 'Create test for Ktor module' intention action doesn't create any tests if routes are defined inside the extension function (KTOR-3079)
Allow using the client itself inside Auth plugin in the refreshTokens lambda. (KTOR-2977)
ADE at io.ktor.ide.plugins.add.KtorMarketplacePluginsUpdater.checkForUpdates (KTOR-3076)
Ktor Client JS: request to /example requests http://localhost/example (KTOR-453)
URLBuilder: Move Default Values to build() function (KTOR-1345)
Impossible to modify response headers (KTOR-2822)
Missing Locations params result in 404 instead of 400 (KTOR-447)
Should return 405 when route exists but not for given method instead of 404 (KTOR-737)
Fix 2.0.0 branch compilation (KTOR-2603)
Query of pre-signed URL has been altered after decode and re-encode process (KTOR-778)
ApplicationCall.locationOrNull raises error (KTOR-1684)
Make body nullable for request builder (KTOR-1400)
Provide better support for Ktor clients (KTOR-883)
Retry on HttpCode or network error (KTOR-572)
HttpRequestRetry in KTOR 2.0 should allow for request altering between retries (KTOR-3544)
HttpCookies: parse / in the name of a cookie (KTOR-3497)
Support for adding values to the MDC later on in the pipeline. (KTOR-536)
Pull Request - fix #1970 - update MultiPartFormDataContent to allow contentType override using optional builder (KTOR-1833)
Pull Request - KTOR-1264 - Add UUID to DefaultConversionService (KTOR-1815)
Pull Request - Intercept pipeline at Setup phase for XForwardedHeaderSupport feature… (KTOR-1844)
Pull Request - Add locale to ThymeleafContent (KTOR-1838)
Pull Request - KTOR-404 Introduce support for X-Http-Method-Override (KTOR-1825)
Objections to changing boundary to internal on MultiPartFormDataContent? (KTOR-325)
Prototype anchors in new plugins API (KTOR-3392)
Rename the 'Ios' client engine to more generic term to cover all Apple operating systems (KTOR-3394)
Update Samples to Ktor 2.0 (KTOR-3218)
Implement new Locations feature (KTOR-1706)
Feature: Use websockets with serialization (KTOR-423)
JS Client doesn't support ServiceWorker (KTOR-3448)
Move Server Related Code from ktor-http-cio to ktor-server-cio (KTOR-3462)
Client request builder: add shortcuts for authentication headers (KTOR-2876)
Add Check if Feature is installed for WebSocket builders (KTOR-3459)
Implementation for Create ktor-test module with mocks of engine and clients for writing tests (KTOR-3236)
TestEngineApplication - implement HttpClient API (KTOR-2416)
Add explicit menu action for migration (KTOR-3400)
Add possibility to fully configure metricName in ktor-server-metrics-micrometer (KTOR-3302)
Support New Native Memory Model (KTOR-3217)
Server for Kotlin Native (KTOR-746)
call.request.queryParameters decode plus as space (KTOR-3297)
Migrate existing plugins to RoutingScoped (KTOR-3201)
Support receiving OAuth code response as form post (KTOR-3342)
Add parameter for specifying content-length in ApplicationCall#respondBytes (KTOR-3087)
Allow application environment configuration when running via commandLineEnvironment (KTOR-3027)
Add locale to ThymeleafContent (KTOR-3313)
Add support for ports in withTestApplication (KTOR-725)
Expose non-reified request methods (KTOR-2590)
XML Support in Ktor (KTOR-489)
Start ktor server on random port (KTOR-686)
parameterOf() should have a variant that takes in a Map<String, List> (KTOR-399)
[Ktor Client] CborFeature (KTOR-3174)
Can't set a base url that includes path data (KTOR-730)
Ktor: Fold internal stack frames for HTTP server (KTOR-2274)
Add method to Client and ServerResponseException (KTOR-3128)
Add UUID to DefaultConversionService (KTOR-1264)
Implementation for Simple API for writing features (KTOR-2480)
Add filtering support in Ktor client response interceptor (KTOR-2992)
Define completion priorities for Ktor keywords (KTOR-2773)
Adding features action in IDE (KTOR-2893)
Implement design about moving features from ktor-server-core (KTOR-1239)
Move server code to io.ktor.server.* package (KTOR-2865)
ApplicationConfig: how to iterate over keys and values of config (KTOR-2318)
Implementation for Events Feature For Client Metrics (KTOR-2472)
ContentConverter.convertForSend should receive a KType (KTOR-444)
Send 100 Continue response only when getting a request to receive IncomingContent (KTOR-855)
Update Documentation and Code for HttpsRedirect Feature (KTOR-1879)
Improve documentation for native/Apple client engines (KTOR-3375)
Update Documentation and Code for CallId Feature (KTOR-1874)
Feature to Plugin changes in Documentation (KTOR-2372)

1.6.7

Published 6 December 2021

Explicitly specify jdk version for building (KTOR-3358)
Make URL constructor public again (KTOR-3514)

1.6.6

Published 25 November 2021

Some Netty EngineMain properties are not set (KTOR-3464)
Session cookie with BASE64 encoding fails to set correct cookie (KTOR-524)
corsCheckRequestHeaders false (KTOR-445)
DropwizardMetrics does not append baseName to the 'per endpoint'-metrics (KTOR-2527)
Cookies that added to request got removed if HttpCookies plugin is installed (KTOR-3105)
Development mode isn't taken into account for subroutes (KTOR-3316)
URL port should be in 0..65535 (KTOR-3314)
Basic auth not sending second request (KTOR-3472)
Update Kotlin to 1.6.0 (KTOR-3422)

1.6.5

Published 2 November 2021

Bump kotlin from 1.5.30 to 1.5.31
Bump tomcat from 9.0.58 to 9.0.54
Bump logback from 1.2.3 to 1.2.6
Bump slf4j from 1.7.30 to 1.7.32
Bump gson from 2.8.6 to 2.8.9
Bump okhttp from 4.6.0 to 4.9.2
Bump jackson from 2.12.3 to 2.13.0
Bump mockk from 1.10.6 to 1.12.0
Add Apple Silicon targets (KTOR-3082)
Fix HttpCookies feature overwriting request cookies (KTOR-3105)
Change EAP version scheme (KTOR-3319)
Update Netty to 4.1.69.Final (KTOR-472)
Allow wildcard origins for CORS requests (KTOR-316)
Add a host check for illegal symbols (KTOR-384)
Add check to prevent anyHost with allowCredentials (KTOR-2872)
Bump metrics-core from 4.2.3 to 4.2.4
Bump webjars-locator-core from 0.47 to 0.48
Bump metrics-jvm from 4.2.3 to 4.2.4
Fix ProxyType.SOCKS being mapped to Proxy.Type.DIRECT
fix grammar (KTOR-3237)
Bump micrometer-core from 1.7.4 to 1.7.5
Ignore flaky testTimeoutPriority (KTOR-3243)
Fix npe if static file not found (KTOR-2811)
Fix flaky timeoutPriorityTest (KTOR-3243)
Fill Content-Length for PartialContent (KTOR-308)
Change default log-level to INFO (KTOR-806)
Use require from the stdlib instead of internal require (KTOR-2626)

1.6.4

Published 30 September 2021

[Auth] [Interceptors] Phase Phase('Challenge') was not registered for this pipeline (KTOR-3156)
insertPhaseBefore and insertPhaseAfter lead to different order (KTOR-438)
Ktor 1.6.3 crashes on restart due to java.lang.ClassNotFoundException: Didn't find class "java.nio.file.WatchService" on Android 24 (KTOR-3166)
GraalVM binary using CIO fails on start "Module function cannot be found" (KTOR-2987)
Logging in Shutdown thread looks not informative (KTOR-3175)
Installed Closeable features not closed when closing HttpClient (KTOR-3116)
Explain method(HttpMethod.Options) in docs for CORS (KTOR-2913)
ContentType.parse("text/html qqq") must fail with error (KTOR-3080)
Update JSON topics using code snippets from the 'codeSnippets' project (KTOR-2955)
Could not find artifact org.jetbrains.kotlinx:kotlinx-html-jvm:pom:0.7.2 (KTOR-2481)
Update the 'Modules' topic (KTOR-1861)
Native engines tests are not run outside of the ktor-client-tests module (KTOR-3069)
MultiPartData.readAllParts throws IOException when the epilogue is omitted (KTOR-3173)
Update Kotlin and Coroutines Versions (KTOR-3103)

1.6.3

Published 26 August 2021

Auth Feature: token refresh works only on main thread in Kotlin/Native (KTOR-3055)
FUS report mixes up feature id and feature version (KTOR-3067)
SessionTrackerById - doesn't remove invalid session id (KTOR-2584)
Bearer Token is Not Initialized after Clean (KTOR-3008)
ktor does not support semicolon query parameter in Netty Engine (KTOR-2991)
HOCON config not resolved in ServletApplicationEngine (KTOR-3020)
Deploy WAR on Tomcat (KTOR-2867)
The wizard missing the Pebble plugin (KTOR-2922)
Wizard: Creating a project without sample code creates Application.configureRouting without routing (KTOR-2581)
The 'Create Run Configuration automatically' option name is cropped (KTOR-2898)
InvalidMutabilityException when using withContext and SavedHttpCall (KTOR-2033)
Reuse Package Search to add dependencies for Ktor Features in Plugin (KTOR-2433)
Server: TLSConfigBuilder.addKeyStore: store.getCertificateChain could return null(KTOR-3047)

1.6.2

Published 29 July 2021

Fixed Ktor plugin raises StackOverflowError when opening some files (KTOR-2950)
Added parseUrlEncodedParameters Documentation (KTOR-2843)
Fixed CIO WebSockets client incorrectly sends Sec-WebSocket-Extensions header even if empty regression (KTOR-2388)
Updated serialization version to 1.2.2 (KTOR-2968)
Made code example complete in OAuth documentation(KTOR-1415)
Added quick action on a Application.module(...) to generate tests for a given module with all the endpoints in plugin (KTOR-2411)
Fixed kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen @72c18 (KTOR-2883)
Fixed 404 errors in ktor docs (KTOR-2915)
Added prometeus version to Ktor docs (KTOR-2015)
Fixed incorrect Structured Markup (LD+JSON) on Ktor docs (KTOR-2943)
Fixed confusing/incorrect JWT auth documentation (KTOR-979)
Fixed embedded Netty Server with watch paths is crashing in API level 22 when calling stopping server (KTOR-1613)
Fixed NoSuchMethodError: No virtual method getParameterCount on Android API 25 and lower regression (KTOR-2924)
Fixed X-Forwarded-Port Parse Exception when it contains comma separated list of ports regression (KTOR-2918)
Made CookieConfiguration default to secure configuration and require user opt-out long-standing (KTOR-628)
Updated docs section about testing with cookies (KTOR-273)
Fixed "ApplicationEngineEnvironment was not started" when accessing application before server is started (KTOR-1854)
Updated HTTP/2 documentation (KTOR-267)
Fixed NPE in ApacheRequestProducer when "http://" is requested (KTOR-1405)
Updated vulnerable versions from sonatype report (KTOR-2875)
Fixed ByteReadChannel.readUTF8Line() indefinitely returns empty lines when \r is not followed by \n (KTOR-2868)

1.6.1

Published 1 July 2021

Linked back to site from Docs (KTOR-2843)
Fixed unbound public symbol for public io.ktor.network.sockets/SocketTimeoutException when iosArm64 framework (KTOR-2276)
Fixed configureBootstrap hook overwritten by Ktor settings (KTOR-356)
Fixed crypto is undefined in IE11 (KTOR-409)
Added support for X-Forwarded-Port header in XForwardedHeaderSupport plugin (KTOR-2788)
Fixed StatusPages doesn't catch FreeMarker exceptions (KTOR-343)
Fixed java.nio.charset.IllegalCharsetNameException: %s (KTOR-2645)
Added application startup and hot-reloading time log (KTOR-2816)
Fixed postpone (and don't cache) name resolution in cio client (KTOR-2513)
Improved diagnostics for exceptions inherited from IOException (KTOR-2691)
Fixed refresh token gets stuck (KTOR-2797)
Fixed developmentMode is on by default in tests (KTOR-2727)
Fixed unable to run new Ktor project (KTOR-2586)
Fixed unhandled get freezes with CIO server (KTOR-333)
Fixed double host header (KTOR-379)
Fixed use kotlin.reflect.jvm.javaType instead of the type token pattern in io.ktor.util.reflect.typeInfo (KTOR-2709)
Fixed "JWK Public Key of type ""EC""" (KTOR-2387)
Fixed lots of Run Configurations Created for Ktor Project with the Similar Names (KTOR-2803)
Fixed ApplicationEngineEnvironmentBuilder.module { … } is executed twice on Exception (KTOR-2734)
Researched shared indexes for Ktor (KTOR-2774)
Fixed selecting custom package name in Ktor wizard still results in example.com import in ApplicationTest.kt (KTOR-2707)
Fixed generated project with specific security and session features selected fails to compile / run (KTOR-2636)
Fixed Wizard: Misleading comment in Static Feature (KTOR-2560)
Fixed "Update ktor 1.5.0 docs. Deprecated ""challenge"" function for form auth in docs." (KTOR-1974)
Fixed Auth Feature Code Snippet: form authentication the doesn't work (KTOR-821)
Fixed the '-ea' flag works differently when running a server using Application.module and embeddedServer (KTOR-1758)
Fixed enabled-by-default development mode breaks reflection by overriding classloader (KTOR-2306)
Reviewed documentation for the onUpload/onDownload client callbacks (KTOR-2710)
Fixed Ktor fails to deliver response with error: failed with exception: kotlinx.coroutines.JobCancellationException: Parent job is Completed; (KTOR-2711)
Replaced kotlin-test dependency with junit in ktor-server-test-host (KTOR-2555)

1.6.0

Published 28 May 2021

Ktor fails to deliver response with error: failed with exception: kotlinx.coroutines.JobCancellationException: Parent job is Completed; (KTOR-2711)
Wrong Tabs Name in Code Blocks (KTOR-2726)
Apache HTTP Client does not send Content-Length header if body is empty content (KTOR-556)
Review Auth providers (KTOR-2637)
When the main thread executes runBlocking, using the iOS engine will cause a deadlock (KTOR-2683)
Deprecate TestApplicationCall.requestHandled (KTOR-2712)
Update Dokka: Dokka tasks fails with old dokka version and Gradle 7 (KTOR-2693)
Duplicate server Features Section on the Documentation Website (KTOR-2702)
Duplicate entry "Features" in Server docs (KTOR-1546)
Upgrading from 1.4.3 to 1.5.2 introduced a routing precedence (KTOR-2278)
Sporadic OkHttp errors after upgrading to ktor 1.3.1 (KTOR-449)
Netty: server freezes after start error (KTOR-803)
aSocket().bind() sometimes throws Already bound SocketException (KTOR-638)
UDPSocketTest.testBroadcastSuccessful[jvm] is failing (KTOR-2616)
Fix flaky CIOHttpsTest.customDomainsTest[jvm] (KTOR-2065)
Occasionally empty response using Netty + Jackson (KTOR-1973)
'%3D' inside query of redirect target location will be replaced to '=' (KTOR-2057)
CIO: TLSConfigBuilder JVM allow null as password (KTOR-940)
route("{...}") stopped matching root (KTOR-1965)
call.respond() will not check or apply ContentNegotiation for some types (KTOR-2194)
Add support for Velocity Tools (KTOR-2345)
Base name of micrometer metrics is not configurable (KTOR-2210)
Support for Compression Extensions for WebSocket (RFC 7692) (KTOR-688)
Document usage of Bearer token in Http Client (KTOR-2439)
How to track leaked buffers in ktor-io? (KTOR-2442)
Routing: Add PutTyped and PatchTyped Overload (KTOR-1344)
Migrate to Dokka 1.4.0 (KTOR-1032)
Client upload/download progress observer/handler/interceptor (KTOR-400)
HTTP-client auth with Bearer token (KTOR-331)
Expose TrailingSlashRouteSelector (KTOR-2511)
Add an option to disable URL Encoding (KTOR-553)
Upgrade kotlin to 1.5.10 (KTOR-2722)

1.5.4

Published 30 Apr 2021

Fixed extra trailing slashes in Route.toString (KTOR-2427)
Fixed ByteReadChannel.read related issues (KTOR-2615, KTOR-2519)
Fixed silently ignored exceptions in HTML DSL with StatusPages feature (KTOR-756)
Changed IosHttpRequestException supertype to IOException (KTOR-2566)
Fixed utility collection implementation for K/N (KTOR-2482)
Fixed client Digest auth realm handling (KTOR-1464)

1.5.3

Published 2 Apr 2021

Upgraded to coroutines 1.4.3 (KTOR-2254)
Upgraded kotlinx.serialization to 1.1.0 (KTOR-2238)
Fixed I/O readRemaining sometimes looses exception (KTOR-2263)
Fixed autoreload with 1.5.x when using embeddedServer NOT in debug mode regression (KTOR-2214)
Fixed flaky CIOSustainabilityTest.testBlockingConcurrency[jvm] (KTOR-2265)
Resolve 'node-fetch' on libs produced by jsBrowserProductionLibraryDistribution regression (KTOR-2230)
Updated doc string for FormPart (KTOR-2173)
Fixed java.lang.IllegalStateException: No instance for key AttributeKey: ExpectSuccessAttribyteKey regression (KTOR-2389)
Supported overriding Kotlin module configuration using jackson dsl function (KTOR-1692)
Fixed CORS can't pass on some none standard orgin on jvm (KTOR-469)
Fixed unexpected exception when using Session feature: "Using blocking primitives on this dispatcher is not allowed" regression jvm (KTOR-1452)
Fixed NettyApplicationEngine providing a configureBootstrap in the configuration throws IllegalStateException: group set already (KTOR-2078)
Fixed wrong indentation in Serving Static Content guide (KTOR-2017)
Fixed InsufficientSpaceException trying to build ByteReadPacket jvm (KTOR-960)
Fixed flaky ProxyTest.testHttpProxy[CIO][jvm] (KTOR-2082)
Fixed invalid assertion for existence of the key in the key store (KTOR-2311)
Fixed incorrect grammar in exception messages (KTOR-2284)
Fixed flaky JavaEngineTests.testThreadLeak[jvm] (KTOR-2098)
Fixed flaky JettyStressTest.highLoadStressTest (KTOR-2080)
Fixed flaky ExceptionsJvmTest.testConnectionClosedDuringRequest[jvm] (KTOR-2063)
Upgrade kotlin to 1.4.32 (KTOR-2403)

1.5.2

Published 25 Feb 2021

Fixed Dokka building for master (KTOR-2206)
Fixed native build on linux machine (KTOR-2200)
Fixed docker doc is incorrect / does not work (KTOR-2179)
Fixed crash with Firebase Performance in iOS (KTOR-642)
Fixed Ktor Client CIO engine Jvm ignores Cipher suites with key strength more than 128 bits. (KTOR-1914)
Fixed mandatory Path Segment parameter can be empty, if no explicit route with trailing / is defined (KTOR-2054)
Fixed flaky ClientSocketTest.testSelfConnect[jvm] (KTOR-2060)
Switch JS Fetch API to Standard Library (org.w3c.fetch.*) (KTOR-1460)
Fixed CIO server always start on "0.0.0.0" - does not respect "connector" configuration (KTOR-334)
Fixed server/netty: IllegalReferenceCountException (KTOR-1801)
Fixed digest authentication: cannot successfully pass authentication using curl or web browser (KTOR-1466)
Fixed HTTP Client exception is masked by JobCancellationException with Ktor 1.5.0 (KTOR-1967)
Fixed changing requestTimeoutMillis in config of HttpTimeout feature doesn't change the CIO's timeout (KTOR-2000)
Fixed test a POST with MultiPart using TestApplicationEngine does not success or fail (KTOR-345)
Fixed default Headers feature adds duplicated Server header (KTOR-1976)
Fixed custom response validation is not running when default is disabled (KTOR-2007)
Fixed session cookie with very long max age duration (KTOR-692)
Upgrade kotlin to 1.4.30 (KTOR-1639)

1.5.1

Published 27 Jan 2021

Circular reference for SocketException and StackOverflowError when using SLF4J logger (KTOR-1080)
start.ktor.io - Incorrect import for websockets for ktor 1.2.4 (KTOR-274)
Unable to catch socket exceptions (KTOR-1166)
Support explicit WebSocket session close (KTOR-340)
ktor-client-apache: thread stuck in ByteBufferChannel.readRemainingSuspend (KTOR-1463)
Logging tests fails due to floating log entries (KTOR-1870)
Adding existing dropwizard metrics registry to Ktor (KTOR-1798)
Exception kotlinx.serialization.SerializationException: Class 'ArrayList' is not registered for polymorphic serialization in the scope of 'Collection' in 1.5.0 (KTOR-1795)
Prevent double quotes on header params (KTOR-1797)
Post request shows empty body after upgrading v1.3.2 (KTOR-426)
CIO native selector doesn't select new descriptors (KTOR-1856)
Client logging docs don't mention all required dependencies (KTOR-280)
Out of date self-signed-certificate documentation (KTOR-272)
ClosedReceiveChannelException when making request with CIO engine using a proxy to https (KTOR-1458)
Incorrect encoding function used for URL path by URLBuilder (KTOR-1543)
A single slash gets ignored for defining a route, but 1.5 requires them due to KTOR-372 (KTOR-1615)
Wrong shadow plugin version in Fat JAR docs (KTOR-1359)
ktor server documentation is returning 404 (KTOR-1602)
CORS doesn't reject bad headers (KTOR-1662)
OkHTTP client engine tries to close the connection twice during the closing handshake (KTOR-1374)
Dispatcher is closing earlier than client (KTOR-1661)
Server losing channel exceptions at receive (KTOR-1590)
Request parameters should have name (KTOR-378)
Status-code must be 3-digit (KTOR-370)
Connect request sends wrong status line (KTOR-1612)
Response channel is always cancelled with Logging feature (KTOR-1598)
Java client logging tests are fluky (KTOR-1599)
HttpTimeoutTest.testConnect are flaky (KTOR-1583)
Jetty: requests to resources, that doesn't respond with HTTP/2, lead to unexpected behaviour (KTOR-874)
"Unfinished workers detected" using client on native (KTOR-1220)
HttpTimeout.testSocketTimeoutWriteFail is flaky (KTOR-1584)
Reserved characters in path is not encoded (KTOR-570)
testTimeoutCancelsWhenParentScopeCancels is flaky (KTOR-1585)
Java client freeze (KTOR-1567)
CallLoggingTest is flaky (KTOR-1582)
Missing dependency information the Authentication and Authorization topic (KTOR-1575)
"Using a Self-Signed Certificate" docs provide wrong dependency for 1.3.x (KTOR-21)
"Testing Http Client" docs page contains artifact name with -native suffix (KTOR-1006)
Custom JSON mapping with Jackson (KTOR-603)
Serialization for client section does not explain how to use it (KTOR-999)
Add information about required artifacts to the WebSockets topic (KTOR-1532)
Missing dependency information the Client Auth topic (KTOR-1533)
New documentation lacks artifacts information for Gradle and Maven (KTOR-1167)
ResponseException is no longer serializable starting from 1.4.0 (breaking change) (KTOR-1552)
Upgrade kotlin to 1.4.21 (KTOR-1637)

1.5.0

Published 22 Dec 2020

Fixed crash when sending large responses in 1.4.2 (KTOR-1369)
Introduced URLBuilder function to append paths (KTOR-403)
Allowed OkHttpConfig to configure WebSocket.Factory (KTOR-951)
Get client certificate information from request (KTOR-424)
Fixed quoting Content-Disposition additional parameters (KTOR-455)
Support Java HTTP Client (KTOR-348)
Serializing collections of different element types (KTOR-1163)
Introduced Netty tcpKeepAlive option (KTOR-368)
Implemented development mode for Ktor (KTOR-1184)
Implemented proper unhandled exception handling strategy (KTOR-835)
Added OAuth feature config to avoid Dropbox issue (KTOR-715)
Breaking change: Fixed trailing slashes handling in routing (KTOR-372) Routes registered without trailing slashes no longer match URLs with trailing slashes, and vice versa. To keep the previous behavior, install the IgnoreTrailingSlash feature.
Added CIO client proxy tunneling support (KTOR-1458)
Supported Sealed Classes inside Session-Objects (KTOR-826)
Fixed code autoreload (KTOR-664)
Added response text to the message of ResponseException and derived exceptions (KTOR-844)
Added ability to send cookies with HttpRequestBuilder (KTOR-926)
Added warning to HTTP/2 push API (KTOR-1329)
Fixed parsing Authorization header diagnostics (KTOR-1406)
Fixed CORS character encoding issue (KTOR-1370)
Added CORS anyHeader in feature configuration (KTOR-977, KTOR-1263)
Added curl engine option sslVerify (KTOR-1093)
Fixed client response validation in some cases (KTOR-1412)
Introduced support for pre-compresed files (KTOR-1447)
Fixed Apache client engine sometimes hits an unrecoverable socket timeout when using ChannelWriterContent (KTOR-1149)
Fixed typo val socketTimeout in CIOEngineConfig cause it's a property in the config (KTOR-1240)
Added excludeSuffix to HttpsRedirect feature (KTOR-1197)
Fixed CIO client connectRetryAttempts = 0 handling (KTOR-1125)
Added option to use specific alias from keystore in CIO TLSConfigBuilder JVM (KTOR-941)

1.4.3

Published 1 Dec 2020

Client: URL encode / escaping is wrong (KTOR-341)
HTTP/2 push fails with netty engine (KTOR-800)
Request headers exceeding expected threshold are not handled correctly (KTOR-905)
iOS client fails with CoroutinesInternalError when Logging is used (KTOR-924)
Experimental API and compatibility guarantees (KTOR-1035)
CIO: client engine exceptions are both logged and thrown (KTOR-1127)
Timeout feature: android engine throws Java's SocketTimeoutException instead of ConnectTimeoutException (KTOR-1229)
Input.readTextExactBytes(n) on empty input different behavior per platform (KTOR-1235)
HttpRedirect feature alters Location header value (KTOR-1236)
Wrong pool is used to release IOBuffer after ByteChannelSequential.copyTo from static initialized instance. (KTOR-1237)
CIO Engine's HttpClient may fail when trying to send large size binary data. (KTOR-1247)
ByteBufferChannel.readRemaining doesn't read whole channel (KTOR-1268)
Cannot receive content via jackson negotiator since 1.4.2 (KTOR-1286)
ktor-io: JVM shared function decrease performance starting from 1.4.0 (KTOR-1290)
Sessions + SSL (Netty) (KTOR-1292)
Netty HTTP/2 HEAD response hangs (KTOR-1298)
Using blocking primitives on this dispatcher is not allowed. Consider using async channel instead or use blocking primitives in withContext(Dispatchers.IO) instead. (KTOR-1305)
"Wrong HEX escape": gracefully handle invalid URLs (KTOR-1308)
Add build parameter to build ktor with JVM IR compiler (KTOR-1336)
Update kotlin to 1.4.20 (KTOR-1346)
Fix configuration if project without VPN and cache (KTOR-1347)
Client: NPE in FormDataContentKt -> Input.copyTo (KTOR-1349)
Upgrade Netty to 4.1.54.Final (KTOR-1363)
Handle failure in reading request body (KTOR-1367)
Remove copyTo usage from ServerPipeline (KTOR-1381)

1.4.2

Published 10 Nov 2020

Please see Change Log on Ktor site

1.4.1

Published 23 Sep 2020

OkHttp: Can't reuse same HttpRequestBuilder for different network clients (KTOR-949)
Empty body in response using macosX64 target (KTOR-479)
Native: InvalidMutabilityException creating HttpClient (KTOR-915)
MultiPartData.readAllParts() throws java.io.IOException when multipart list is empty (KTOR-767)
kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen io(.ktor.client.request.HttpRequestPipeline (KTOR-693)
"FreezingException: freezing of InvokeOnCompletion has failed" using native-mt coroutines (KTOR-973)
kotlin.native.concurrent.InvalidMutabilityException with 1.3.3-native-mt (KTOR-497)
Parser Exception in header with character code 1 not allowed (KTOR-860)
Calling HttpStatement#toString more than once throws IllegalArgumentException (KTOR-1005)
Wrong session id get stuck at clients (KTOR-1007)
Exception after WebSocketSession.close() invocation. (KTOR-847)
Error Ktor running on background thread on iOS (KTOR-499)
HttpClient can only be used on the main thread for native targets (KTOR-491)
Ignore content length when transfer encoding is chunked for CIO server (KTOR-1036)
ConcurrentList.increaseCapacity() throws ArrayIndexOutOfBoundsException (KTOR-1034)
Ktor 1.3.1 Fails File Upload with MalformedInputException (KTOR-391)
Update library versions, fix config after release (KTOR-1027)
Fix parsing urls with trailing spaces (KTOR-886)
1.4.0: breaking change by making response nullable in ResponseException (KTOR-916)
Netty: Not started servers leak resources (KTOR-939)
Ktor websocket client passes configured max frame as timeout millis (KTOR-923)
Routing: get matcher has higher priority than param matcher on the same level (KTOR-792)
Confusing log message about failed session lookup (KTOR-776)
Implement runtime check of using native-mt coroutines (KTOR-956)
Http parse security issue (KTOR-841)
Bumped versions:
- kotlinx.coroutines 1.3.9-native-mt-2
- kotlinx.serialization 1.0.0-RC2
- kotlin 1.4.10

1.4.0

Published 18 Aug 2020

Upgrade to kotlin 1.4.0
Add native platform support for CIO client (#2021)
Prevent access Tomcat servletRequest after recycling
Fix verbose IO exception logging
Fix client cookies remove
Fix suspend tests for digest provider
Add deprecation to BasicAuth feature
Add client.get operator for features
Add client websocket feature config
iOS Certificate Pinning (#1750)
Add originHost support in browser
Fix client logging issues with POST body
Prevent CURL multi-handle double close
Add content-type header to default transformers
Fix report for multiple failed engines in native
Use window.location.origin as default host in URLBuilder
Prevent Empty Cookie addition (#2008)
Fix executor service termination in okhttp (#1860)
Verify sending Content-Type and custom object body via POST (#1897)
Fix ByteBufferPool recycle (#2016)
Update jetty version
Fix CIO exception logged twice
Change exception type for long strings in readUtf8Line
Fix uri field in digest auth header to include query params (#1992)
Fix empty multipart post
Move the default test server to CIO
Fix webpack warning about ktor-client-core critical dependency
Fix missing qop in DigestAuthProvider (Issue #1974)
Handle " in different position cases
Fix parsing of quoted header parameter value
Fix saved call early completion
Fix tests with empty json check
Fix sending blank ContentType in Apache engine
Parse blank content type to Any
Fixed serialization of empty body (#1952)
JsonFeature: Fixed header behavior and made it more flexible (#1927)
Fix max-age header to use '=' instead f ':'. (#1769)
Add contextual serialization support
Introduce non-suspend api for writing
fix memory alignment check (#1742)
JetBrains Toolbox icon (#1805)
Apache should use existing approach when merging headers (#1919)
Fix conditional headers behaviour (Fix #1849).
Change IosHttpRequestException parent to improve usability
OAuth2: Added option to pass params in URL (#1847)
Fix doubling host
Enhanced handling of statusCode for AndroidEngine (#1852)
Fix deserialization issue in client (Fix #1800).
GitHub issue/pr links in IDEA Git log (#1806)
Fix log channel is not closed for ByteArrayContent (#1808)
Use comma to divide headers (Fix #1765).
HTTP Client tracing using Stetho Android library.
Fix static content resolution for directories inside Jar (#1777).
Improve WebSocket routing API (Fix #1075).
Implemented cookies encoding with their own encoding and added test cases for this
Fix URI support (#1755)
Fix OkHttp WebSocket close reason completion (#1363).
Fix package directive; Add unimported cfnetwork constants
Fix client.join to wait engine close
Verify receive from response in exception
Update okhttp version to 4.4.0
Cleanup iOS proxy configuration
Fix WebSocketTest.testMaxSize
Fix UTF8 parsing (#1718).

1.3.2

Published 12 Mar 2020

Introduced iOS streaming response support
Provided challenge handler in iOS client configuration
Improved JsonFeature configuration DSL (#1472)
Simplified server kotlinx.serialization config
Recovered HttpRequestBuilder.takeFrom function (#1626)
Allowed to configure default cookies asynchronously
Exposed server LocationInfo and added location resolve functions (#1657)
Introduced function for async writing to server response channel (#1703)
Added an option to filter logged calls for ktor-client-logging
Fixed iOS client timeouts
Fixed iOS crash
Fixed 100% CPU Apache Ktor Http Client #1018 (#1689)
Fixed missing client response logging
Fixed CIO server local address detection (#1663)
Fix server request origin to provide header's host and port when available
Fixed random missing feature errors caused by concurrency at startup (#1694)
Fixed Set-Cookie header parser in iOS and JS
Fixed client multiple redirects with relative path (#1704)
Fixed unwrapping cancellation exceptions in client (#1482)
Fixed missed preconfigured OkHttpClient in OkHttpEngine (#1646)
Fixed websocket to complete closeReason on disconnection (#1275).
Fixed websocket sending CloseReason(1009) when frame is too big
Fixed websocket pinger logging
Fixed maxFrameSize for chunked frames
Fixed URL scheme parser (#1614)
Fixed platform detection in PlatformUtils.IS_NODE and PlatformUtils.IS_BROWSER (#1675)
Fixed Short.highByte
Fixed consumeEachBufferRange (#1693)
Fixed httpclient gzip decoding failure (#1189)
Fixed InputStream wrapper for Input
Bumped versions:
- Kotlin 1.3.70
- kotlinx.coroutines 1.3.4
- kotlinx.serialization 0.20.0
- kotlinx.html 0.7.1
- dropwizard 4.1.2
- slf4j 1.7.30
- mustache 0.9.6
- pebble 3.1.2
- webjars 0.43
- jackson 2.10.2

1.3.1

Published 5 Feb 2020

Introduced experimental client timeout feature
Fixed OkHttp leaking threads
Fix decoding UTF8 lines (#1323)
Fixed websocket close sequence (#1262, #1571, #1427)
Reduced number of redundant exceptions logged in jetty server
Fixed text decoder in js client under nodejs
Fixed NSUrlSession memory leak (#1420)
Make server feature throw BadContentTypeFormatException to get status 400
Reverted accidentally removed client LocalFileContent
Removed User-Agent header in browser (to avoid CORS-related issues)
Fixed request body with Input
Improved native clients performance
Fixed native and js client cancellation issues
Fixed file descriptor leak in Jetty server (#1589)
Fixed server sessions and cache related iseues (#1591)
Upgraded JWT/JWKS versions
Upgraded Netty version
Fixed multiple server jwt auth providers processing (#1586)
Fixed Auth retry logic (#1051)
Fixed ApplicationRequest.remoteHost to not report "unknown"
Fixed corrupted headers in CIO client and server on Android
Improved server cancellation handling

1.3.0

14 Jan 2020

ktor client proxy support
Introduced HttpStatement and deprecated potentially dangerous resource-leaking client API
Eliminated kotlinx.io dependency
Fixed server identity compression handling: keep original content length
Fixed handling GET requests with body (#1302)
Fixed curl request with empty body
Added iOS url session configuration
Fixed CIO engine no longer sends port in "Host" header (#1295)
Add INTRINSIC value to TLS signature algorithms
Introduced ability to send string in request body
Improved client and server typeOf support with kotlinx.serialization
Gradle 5.4.1+ with newer metadata (metadata 1.0)
Improved exceptions handling in client and server on Android
Added missing TLS parameters and relaxed TLS parsing to ignore unsupported features
Improved session diagnostics (#1368)
Fixed hookRequests in test engine (#1300)
Deprecate java.time related API and related cleanup (for future kotlin.time support)
Restricted CIO HTTP headers parser
Introduced header name and value validation
Fixed must-revalidate on the request side in ktor client (#1406)
Fixed OkHttp client resource cleanup on close
Added watchos/tvos native targets
Fixed content truncation at native and JS targets
Fixed server's If-Range header parsing to avoid crash at date parsing (#1377)
Fixed server's conditional headers processing
Reduced required JDK version for DefaultHeaders server feature
Fixed client hanging due to exception in response pipeline
Replaced HttpClientJvmEngine to HttpClientEngineBase that is now common for all platforms (affects only custom client engines)
Fixed hierarchy of execution and call contexts in clients that allows to properly handle request lifetime using execution context.
Optimize JS module import time (#1464)
Upgraded versions of Netty, Jetty and Tomcat implementations
Added Pebble template engine (#1374)
Introduced localPort route that is always tied to actual socket port (#1392)
Fixed cookie expiration date parsing (#1390)
Server authentication feature's phases are now public (#1160)
Fixed auth header resending after redirect (#1467)
TCP half-close made optional for CIO client engine and disabled by default.
Apache client random timeouts fixed
Fixed locale-dependant code (#1491)
Fixed unclosed websocket channels if cancelled too early
TCP half-close made optional for CIO client engine and disabled by default. (#1456)
Improved ktor-client-mock engine to be thread safe (#1505)
Fixed client cookies logging (#1506)
Fixed multiple application stop events in test engine (#1498)
Fixed CIO ActorSelectorManager to not spin due to cancelled keys (affects both CIO client and server)
Made default auth validate functions fail to force users to implement them
Introduced test client instance in the test server
Fixed various server and client engines to return null for missing headers rather than empty list
Introduced support for json structures in client and server (#1519)
Introduced ktor-server-core binary compatibility tracking
kotlinx.coroutines 1.3.3

1.2.6

25 Nov 2019

Kotlin 1.3.60
Restricted CIO HTTP headers parser
Introduced header name and value validation

1.2.5

27 Sep 2019

Fixed ClosedSendChannel exceptions in client and server
Fixed Android crash on client and server exceptions
Fixed server identity compression handling: keep original content length
Fixed partial content without the passed range doesn't have content length
Fixed curl request with empty body
Fixed empty client form data (#1297)
Fixed CIO engine no longer sends port in "Host" header (#1295)
Fixed potential deadlock in Android engine
Gradle Metadata 1.0 (Gradle 5.6.2)
kotlinx.coroutines 1.3.2
kotlinx.serialization 0.13.0
Dropwizard 4.1.0
jackson 2.9.9.3

1.2.4

Published 2 Sep 2019

Fixed multipart form header entity separator
Fixed crypto in IE11 (#1283)
Marked response transient in the client exception (#1256)
Fixed network on main thread in okhttp engine close
Fixed follow redirect iOS (#1000)
Kotlin 1.3.50
kotlinx.coroutines 1.3.0

1.2.3

Published 1 Aug 2019

JS websocket bugs fixes and improvements
Eliminated Java9's Base64 implementation (useful for older JDK and Android)
Fixed bug of adding unexpected trailing slash (#1201) (#1206)
Improved apache and okhttp client engines performance
Fixed client response body cancellation
Added client response streaming on nodejs
Deprecated old client BasicAuth
Introduced a flag to send auth without negotiation
Added server kotlinx.serialization initial support (SerializationConverter)
Client TLS implementation fixes: cancellation and error handling.
Added web assembly content type.
Prohibited server double request content call.receive.
- Introduce DoubleReceive feature that makes it work.
Server CORS support fixed and improved
Added initial kotlinx.serialization support for server including receiving generic collections.
Introduced ktor-bom for better dependency management.
Improved jetty server engine configuration to enable manual connectors setup.
Fixed client memory leak (#1223).
Upgraded Jetty, Netty and utility libraries.
Kotlin 1.3.41

Breaking changes/Migration steps:

CORS doesn't allow non-simple request body content types anymore by default
- to allow extra content types such as json, enable allowNonSimpleContentTypes
At least Kotlin 1.3.41 IS REQUIRED

1.2.2

Published 20 June 2019

Upgraded to Kotlin 1.3.40.
Netty server engine uses native transports when available (#1122).
Upgraded to Netty 4.1.36 (#1190).
Added JVM shutdown hooks in server engines (#1111, #1164).
Introduced challenge builder functions in server auth providers (#366, #921, #1130, #798).
Segmentation fault is fixed in native clients (#1135).
Improved gracefull shutdown in ktor client engines Jetty and Apache.
Removed kotlin-reflect from ktor jvm clients (#1162).
Client threads daemonized (#1170).
Relaxed client cookie value restrictions (#1069).
Fixed empty client requests with okhttp engine (#1175).
API cleanup, deprecations.
kotlinx.coroutines 1.2.2, kotlinx.serialization 0.11.1.

1.2.1

Published 27 May 2019

Fixed module function lookup (regress, #1132)
Fixed SessionTransportTransformers application order (#1147)
Fixed double content length header in requests on older Androids (#1060)
Fixed receiving a byte channel crash on Android (#1140)
Fixed websocket sockets lifecyle on Jetty engine
Downgraded Gradle to reduce gradle metadata version

1.2.0

14 May 2019

Introduced multiplatform websockets: jvm, js.
Added client certificates support.
Fixed updating session in directory storage (#963).
Added optional contentType to formDsl (#910).
MockEngine version which favors execution order and returns processed requests (#924).
Fixed Unit body serialization.
Allowed using preconfigured OkHttp client instance.
Defined the client default user agent.
Improved curl error diagnostics and resource management.
Fixed LogLevel.NONE with body bytes.
Added CIO endpoint config builder.
Fixed status code check in client Auth feature.
Fixed client close issue.
Fixed: GMTDate.toJvmDate() uses current date instead of given date. (#986)
Moved client auth to common.
Use UTF-8 as default charset in BasicAuth.
Introduced client content encoding feature.
Introduced client call validator feature.
Old API deprecations and removals.
Fixed gzip/deflate on JDK11
Introduced JWT auth header retrieval configuration (#1048)
CallLogging message format customization (#1047)
Fixed logging error with no call-related MDC (#1033)
Avoided using constant hash salt in UserHashedTableAuth
Added LDAP auth provider proper characters escaping
Minimized jetty core pool size and made it configurable (#1083)
Made servlet engine use servlet config instead of context (#1063)
Introduced accepted content types contributor in ContentNegotiation (#357)
Introduced ApplicationEnvironment.rootPath with servlet engine support (context path) (#738)
Support for rootPath in routing by default (#738)
Introduce ability to serve web resources from WAR
Added micrometer metrics (#1037)
Added Thymeleaf templating feature (#988)
Cookie session use / path by default (#1043)
Add hot reload experimental support for JDK9+ (VM option required)
HttpStatusCode equals check is amended
Added client AcceptCharset header support
KotlinxSerializer moved to a separate artifact
Client engine API simplified
Introduced client cache support
Server authenticator config reworked
Server digest auth updated to use UTF-8
Added experimental android client line-wrapping logger
Fixed webjars parameters handling and several minor fixes
Introduced JWTVerifier configure block when using JWKProvider
Added client json feature custom content types support
Fixed incorrect url encoding for some characters (#1094)
Fixed hanging jetty server engine
Introduced CIO client engine request timeout config
Added client multipart content length support
Jetty upgraded to 9.4.15.v20190215
okhttp client upgraded to 3.14.0
Fixed CIO client CPU utilization issue
Kotlin 1.3.31
kotlinx.coroutines 1.2.1

1.1.5

Published 24 Apr 2019

Minimized jetty core pool size and make it configurable (#1083)
Servlet engine fixed to use servlet config instead of context (#1063)

1.1.4

Published 13 Apr 2019

Upgrade to Kotlin 1.3.30
Upgrade coroutines to 1.2.0

1.1.3

Published 21 Feb 2019

Fixed NoSuchMethodError on Android (#927)
Fixed upload file error on JS (#956)
Fixed several encodings issues caused corrupted jsons and receive pipeline erros (#920, #787, #866)
Fixed curl connection errors reporting
Updated jackson dependency (#952)

1.1.2

Published 24 Jan 2019

Introduced native curl client engine (#479)
Added iosArm32 target (except curl)
Host and port route builders (#825)
Fixed host() and port() functions to respect proxy (#834)
Fixed classloading issue affecting hot-reload (#825)
Fixed hanging CIO client (#800, #806)
Added CIO client CBC support (#623, #560, #394)
Upgraded JWKS/JWT (#856)
Fixed server MessageDigest concurrent issues
Introduced NonceManager, deprecated OAuth2StateProvider
Prohibited setting session at server after responding the call (#864)
Fixed loosing errors in StatusPages if there was already a response sent
Introduced application property on ApplicationEngine interface
Introduced experimental ktor server exceptions
- BadRequestException
- NotFoundException
- MissingRequestParameterException
- ParameterConversionException
- supported in locations out of the box (including #767)
- experimental parameters delegation support
Added routing tailcard prefix support (#876, #526)
Fixed registering content converters with custom content type pattern (#872)
Improved GSON error diagnostics (#811)
Exclude several content types in Compression feature by default: audio, video, event-stream (#817)
Fixed hanging handleWebSocketConversation
Fixed cookie session max-age value to be bumped to Int.MAX_VALUE (#892)
Fixed CIO headers parsing: allowed headers with no values
Fixed client websocket nonce size (#861)
Fixed client scheme parsing
Supported client relative redirects by making #takeFrom() resolve relative urls. (#849)
Fixed network on main thread in CIO (#764)
Changed the default algorithm to SHA-256 from SHA-1 for signed server cookies
Fixed conflicting WebSockets and StatusPages (#889)
Update gradle to 4.10
Kotlin 1.3.20, kotlinx.coroutines 1.1.1, kotlinx.serialization 0.10.0

1.1.1

Published 26 Dec 2018

Fixed broken pom files

1.1.0

Published 24 Dec 2018

Reduced JDK7/8 dependencies (including #762)
Discarded deprecated API
Coroutines debug agent support
- see Kotlin/kotlinx.coroutines/core/kotlinx-coroutines-debug/README.md
Fixed IndexOutOfBounds during main module function search
okhttp-client: pass contentLength for multipart form data
Improved auto-reloading feature in corner-cases (#783)
Fixed HTTP server upgrade to delay socket close (#674)
Added Mustache templating feature (#713)
Added ability to configure Logger instance for CallLogging
Fixed session HMAC to do a constant time comparison
Added Node.js suport for js http client (#791)
SessionTransportTransformerDigest is deprecated (#792)
- also switched to SHA-384 by default that is not vulnerable
Fixed jetty server thread names (#756)
Fix conditional headers zoned dates (#476)
NettyChannelInitializer made public (#286)
Fixed slf4j dependency (#808)
Fixed client logging freeze
Added client DigestAuth feature
Fixed apache client response reading freeze
Fixed apache client engine errors handling
Kotlin 1.3.11, kotlinx.coroutines 1.1.0

1.0.1

Published 4 Dec 2018

Client logging feature (Logging in ktor-client-logging)
Client user agent feature (see UserAgent)
Client top-level list serialization support (#739)
JS client body handling fix (#746)
Client redirect edge cases fixed
Client close/cancel handling improved
CIO client bugfixes
Unicode filenames support in multipart fileupload (#757, #687, #596)
ContentNegotiation and WebSocket server features compatibility (#745)
Server session cookie duration is optional (#736)
Server autreload support fixed (#736)
CachingOptions resolution ambiguity fixed (#741)

1.0.0

Published 19 Nov 2018

Improved documentation
Improved performance
Kotlin 1.3.10
kotlinx.coroutines 1.0.1 and structured concurrency support:
- Coroutine scopes introduced per pipeline, call, application and web socket session
Fixed client response cancelation via receive<Unit>() and response.cancel()
Disabled client pipelining by default to provide safe behavior by default
GMTDate improvements on js and native
Added client response observer for response logging purpose
Test client and mock engine improvements
Cookies dates, domains and dupicate parameters processing fixed
Server pipeline fixed to discard request body if not used (#609, #574)
Websocket session lifecycle fixed during close sequence
Several Url and UrlBuilder fixes and improvements
Introduced ExpectSuccess client feature
Fixed StatusPages to handle child job failures (#646)
Compression bugfixes (including #708, #685)
Fixed timeouts in websockets with Jetty
Renamed DevelopmentEngine to EngineMain
Restricted @Location annotation targets, allow on a typealias (#539)
Removed default connector on port 80 (#670)
Several JWT and OAuth bugfixes and error habdling improvements (#664, #676, #550)
Improved serialization client feature

0.9.5

Published 19 Sept 2018

Added shorthand client functions for HEAD, OPTIONS, PATCH and DELETE methods (#562)
URLBuilder's parser improved (#553, #567)
Improved client's cookie matching and processing
Introduced CallId feature
Added MDC support to CallLogging feature
Fixed setting charset encoding for non-text content types
Added respondOutputStream { } response function
Migrated to Kotlin 1.2.70
Split Infrastructure phase into Monitoring and Features phases

0.9.4

Published 29 Aug 2018

Added multiplatform client support (android and ios)
Added Android client engine (UrlConnection)
Added OkHttp client engine (Android support)
Added Jackson feature support
Added Ios client engine
Deprecated response.contentType and response.contentLength
Strengthened IncomingContent deprecation
Upgraded Jetty ALPN, Tomcat
Fixed config evaluation issues (#488)
Disabled async incoming upgrade stream at Tomcat
Prohibited appending unsafe headers to request headers
Renamed XForwardedHeadersSupport to XForwardedHeaderSupport (#547)
Added HttpResponse.receive<T> method to run response pipeline on raw response
Introduced kotlin multiplatform url-parser
Supported client form data and multipart
Added missing client builders for post and put methods
Simplify client configuration API
Fixed several compression issues
Fixed client attributes evaluation
Fixed CIO engine random algorithm selection
Fixed url parsing (#511)
Fixed ambiguity in writing client Content-Type and Content-Length headers
Minor performance fixes
Netty HTTP/2 fixes
Fixed IOOBE in satic resource resolution (#493)
Fixed JWT error handling
Kotlin 1.2.61, kotlinx.coroutines 0.25.0

0.9.3

Published 26 Jun 2018

Improved WebSocket API
Websocket header Sec-WebSocket-Key is now optional
Fixed client cookies rendering to avoid x-enc
Fixed plain text client reader (#392)
Added EC support in CIO TLS (#394: ECDHE_RSA_AES256_SHA384, ECDHE_RSA_AES128_SHA256)
Fix client certificate validation
Introduced optional authentication
Added ApplicationCall as receiver for auth validate functions
Introduced call.respondBytes (#395)
Improved JWT support: multiple schemes, nullable issuer
Conversion service enum type diagnostics improved (#403)
Avoided using apos entity in HTML escaping as IE doesn't support it (#400)
Converter support for java big numbers
Ability to add auth methods to existing feature on the fly
Improved auth header scheme and contents validation (#415)
Default charset for BasicAuth is now UTF-8 (#420)
Added ByteArrayContent.contentLength (#421)
Fixed headersOf case insensitive issue (#426)
Client deserialization improved by using type token
Ability to disable client default transformers
Explicit Accept header in client request
Turn on masking in client websockets (#423)
Fixed inverted PartialContent.Configuration.maxRangeCount check (#440)
Fixed uncaught UnsupportedMediaTypeException from receiveOrNull() (#442)
Fix multipart boundary header parsing
Upgraded jwks/jwt, applied RSA256 by default if unspecified (#434, #435)
Upgrade coroutine version to 0.23.3
Upgrade Jetty version to 9.4.11.v20180605
Add client-mock-engine for testing purpose
Use default available engine by deafult
Upgrade kotlin to 1.2.50

Move ktor-samples to a separate repository (#340). https://github.com/ktorio/ktor-samples

0.9.2

Published 23 Apr 2018

New auth DSL, more suspendable functions (such as verify/validate)
RoutingResolveTrace for introspecting routing resolution process
HTTP client improvements and bugfixes (DSL, reconnect, redirect, cookies, websockets and more)
CIO http client pipelining support, chunked and more
CIO initial TLS support
Session authentication provider
OAuth2: introduce ability to generate and verify state field
OAuth: fix scopes parameter to conform to RFC (#329)
OAuth2: fix bug with double scopes encoding (#370)
OAuth2: add ability to intercept redirect URL
CORS: introduce allowSameOrigin option
Auth: provide application call as receiver for validate functions (#375 and related)
Test host reworked, handleRequest reads the body and redirects the exceptions correctly
Servlets: fixed inputStream acquisition, fixed error handling
Java 9 compatibility improved (no modules yet)
Digest auth fixes (#380)
Log running connectors details for better development experience (#318)
Last-Modified header and related functionality to work in proper GMT time zone (#344)
IncomingContent is deprecated
URLBuilder fixes and improvements
Documentation improvements
Performance optimizations (Netty, CIO server backends)
CIO server improved stability
Encrypted session support (SessionTransportTransformerEncrypt)
Empty (null) model for freemarker (#291)
ContentNegotiation missing Accept header support (#317)

0.9.1

Published 29 Jan 2018

Support for blocking servlets and GAE
Headers and Parameters types instead of ValuesMap
Velocity templates support
Unsafe (Forbidden) headers checks added
Deprecated Resource type
Added support for extensible version providers to ConditionalHeaders feature
Engine-specific configuration support for application.conf
Added filtering and customisation of log level to CallLogging feature
Added ability to skip authentication using a predicate, add documentation to Authentication feature
Introduced auth0 JWT/JWKS authentication (#266)
ktor http client DSL improvements
CIO engine improvements, stability and performance
Introduced [OutgoingContent] properties contentLength, contentType and status
Upgrade Netty in the corresponding engine implementation
Introduced shareWorkGroup option for Netty engine
More documentation
Bump versions of dependencies

0.9.0

Published 31 Oct 2017

Package structure reworked
Packages and maven groupId renamed org.jetbrains.ktor -> io.ktor
Server-related artifacts having ktor-server-* name prefix (ktor-netty -> ktor-server-netty)
Application Host renamed to Application Engine
FinalContent renamed to OutgoingContent as opposite to IncomingContent (introduced in 0.4.0)
Added Application Engine configure facilities so one can specify thread pool size or some engine-specific parameter
Initial idiomatic ktor HTTP client implementation (artifacts prefixed with ktor-client-*)
Metrics support, DropWizard integration
Improve routing API, tune resolution mechanics, hide some implementation details
ContentNegotiation feature to support variable content on send and receive
Jackson support
Experimental pure kotlin application engine on coroutines (CIOApplicationEngine) and CIO-based http client backend
Improved stability under load
Status pages processing improvements
A lot of documentation

0.4.0

Published 16 Aug 2017

Built with Kotlin 1.1.4
Refactored receive/response pipelines and moved them into respective ApplicationRequest & ApplicationResponse classes
Fixes, improvements and integration tests for HTTP/2 support
Update ContentType to treat all parts case insensitively
Remove ApplicationLog and use SLF4J Logger directly
Add HttpMethod.Patch and respective builder functions
routing function will now install Routing feature or use existing installed feature for easier modules
Convert sessions to proper feature, support multiple sessions, improve DSL
HeadRequestSupport feature is renamed to AutoHeadResponse (with deprecated typealias)
Replace ApplicationTransform with receive pipeline
Introduce send/receive pipelines for all call pipelines
Gson application feature for JSON transformation of incoming & outgoing data objects
Added HttpBin sample (thanks to @jmfayard)
Employ DslMarker annotation to prevent accidental use of route functions in get/post handlers
Improve diagnostics for untransformed content
Ensure missing file (FileNotFoundException) can be handled properly with StatusPages feature
Websocket fixes for large frames, fragmentation and more
Support for specifying config file with command line
Improvements in Servlet-based hosts
Memory allocation and performance optimisations
Add Apache 2 LICENSE file
Add documentation to some types
New sample for static content
Bump versions of dependencies

0.3.3

Published 22 Jun 2017

Execution model slightly changed to avoid global executors. ApplicationEnvironment doesn't provide executor anymore
Websockets refactored with channels instead of callback functions
Fixed bug with compression not preserving status code (thanks Diego Rocha)
Fixes in Netty support: performance issues under heavy load and keep-alive connections, cancellation, closed sockets
Fixes in session serialization, enums support
Optimisations in Servlet and Jetty hosts, fixes in edge cases
Fixes in chat sample

0.3.2

Published 24 Apr 2017

Fix bug in byte array response that missed Content-Length header
Fix default encoding in FreeMarker to be UTF-8
Fix FreeMarker writer
Fix charset for text/* content types to be UTF-8 by default
Fix Kweet sample application in kweet deletion
Fix form authentication to adhere to removal of post parameters from parameters
Rework static content DSL to improve usability
Improve Accept header handling in routes
Support local class in locations, improve diagnostics
Add servlet host tests running in Jetty, but using servlet deployment model
Benchmarks can now measure GC performance (and any other JMH profiler)
Performance optimisations

0.3.1

Published 7 Apr 2017

Replace routing function contentType with accept
Major refactoring in internal host system to simplify and unify code
- Use embeddedServer(Netty, …) instead of embeddedNettyServer(…)
- Support automatic reloading in embedded hosts
- Fix ApplicationTransform problems preventing Freemarker templates from working
Fix json and logback dependencies to avoid propagating to clients
Bug fixes & performance optimisations
Documentation

0.3.0

Published 8 Mar 2017

Major refactor to coroutines

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3.0.1

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3.0.0

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3.0.0-rc-2

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3.0.0-rc-1

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3.0.0-beta-2

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2.3.12

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2.3.11

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2.3.10

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2.3.9

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2.3.8

Bugfixes

2.3.7

Bugfixes

3.0.0-beta-1

Bugfixes

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2.3.6

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2.3.5

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2.3.4

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2.3.3

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2.3.2

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2.3.1

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2.3.0

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2.2.4

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2.2.3

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2.2.2

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2.2.1

2.2.0

2.1.3

2.1.2

2.1.1

2.1.0

2.0.3

2.0.2

2.0.1