Ktor Versions Save

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)

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)

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)

Published 7 December 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)

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)

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

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)

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)

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)

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)