Update ktor monorepo to v3.5.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
io.ktor:ktor-client-js	3.4.1 → 3.5.0
io.ktor:ktor-client-core	3.4.1 → 3.5.0

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Release Notes

ktorio/ktor (io.ktor:ktor-client-js)

v3.5.0

Compare Source

Published 14 May 2026

Features

• KTOR-8421 Route.contentType should support multiple ContentType
• KTOR-7961 Add known TDM headers to the HttpHeaders object
• KTOR-9418 Support getAs from the root ApplicationConfig
• KTOR-9559 DNS configuration for the Apache5 client
• KTOR-9554 DNS configuration for OkHttp client engine
• KTOR-9555 Custom SSE heartbeat function
• KTOR-8914 Dependency injection: read annotations in function references
• KTOR-8300 Sessions: Add a way to create a user session shared for all user devices or look up sessions of the same user
• KTOR-9521 Upgrade to Kotlin 2.3.21
• KTOR-9276 Make DynamicProviderConfig.authenticateFunction suspend
• KTOR-9491 Provide parameter validation convenience functions
• KTOR-9506 OpenAPI: Support prefixItems in JsonSchema for tuple type definitions
• KTOR-470 Add an option to not resend the session cookie if the session data wasn't changed.
• KTOR-9355 Deprecate HttpHeaders.AcceptCharset
• KTOR-7659 Make ktor-network compatible with ES modules for nodejs
• KTOR-9350 JS: Make ES2015 the default target for tests
• KTOR-7578 Update Digest authentication implementation according to RFC 7616

Improvements

• KTOR-9503 The JacksonConverter.streamRequestBody property name is confusing
• KTOR-9552 Deprecation notice for io.ktor.server.auth.Principal does not explain what to use instead
• KTOR-7458 Jetty Jakarta: Provide an easy way to disable SNI hostname validation
• KTOR-9354 Websockets: webSocket builder function should return a Route to be describable
• KTOR-9488 Nonce and hex function performance optimizations

Bugfixes

• KTOR-9524 Netty response hangs after connection lost
• KTOR-9542 Netty: The request handler runs on worker event loop instead of call event loop since 3.4.3
• KTOR-9531 Netty server intermittently drops requests after upgrading to 3.4.3
• KTOR-8151 MicrometerMetrics: "MeterFilters configured after a Meter has been registered" warning when a metric is registered before installing the plugin
• KTOR-9411 Darwin throws DarwinHttpRequestException instead of FrameTooBigException
• KTOR-8320 CallLogging: plugin usage in testApplication breaks console standard output
• KTOR-8906 Jackson, with request body streaming on, exhausts Dispatchers.IO
• KTOR-8709 Websockets: Unable to close session with a custom CloseReason
• KTOR-9567 Flaky UnixSockets on Windows: WSAEOPNOTSUPP from bind()
• KTOR-9183 A client call wrapped with withTimeout throws a generic CancellationException instead of TimeoutCancellationException
• KTOR-8199 Autoreloading: default watch patterns don't match anything when project path contain spaces
• KTOR-9549 Kotlin/JS: ktor-ktor-client-core.mjs is incompatible with Vite: toRaw naming conflict
• KTOR-9544 Apache: body channel not cancelled when caller scope is cancelled
• KTOR-9546 HttpClient: cancelling ByteReadChannel body does not propagate to engine
• KTOR-455 Content-Disposition additional parameters should be inside quotes
• KTOR-9500 RawSourceChannel returns false positive on awaitContent
• KTOR-646 Netty engine still print annoying exceptions
• KTOR-9527 Curl: Freeze when receiving large responses
• KTOR-9460 Curl: Can't build shared library with Ktor 3.4.2
• KTOR-9483 Curl: backpressure implementation is never used
• KTOR-9545 Curl: body channel not cancelled when caller scope is cancelled
• KTOR-9540 Curl: CancelWebSocket task may cancel a new HTTP request due to easy handle pointer reuse
• KTOR-9539 Curl: WebSocket bearer token refresh fails due to stale native handle reuse
• KTOR-9536 Netty call hang when channel becomes inactive before response is sent
• KTOR-4752 OkHttp: Websockets pinging doesn't work
• KTOR-9409 call.respond performance regression caused by transitive kotlin-reflect:2.3.0
• KTOR-9487 ZSTD decoder fails if the compressed frame is larger than 4096 bytes
• KTOR-8271 MockEngine, HttpTimeout: the virtual clock of kotlinx coroutines isn't respected
• KTOR-6683 Plugin onCallReceive/transformBody is not called for receive()
• KTOR-7416 Jetty, Java: Custom Host header doesn't override the default value
• KTOR-9203 CIOMultipartDataBase: Call thread is blocked when releasing file parts

v3.4.3

Compare Source

Published 22 April 2026

Bugfixes

• KTOR-9451 OpenAPI schema inference not working for custom nested generics
• KTOR-9490 OpenAPI: Self-referential schema $ref uses FQN while schema is registered with a simple name
• KTOR-9463 OpenAPI: schema inference StackOverflow
• KTOR-8938 WebSockets: WebSockets handler does not inherit server coroutine context
• KTOR-8989 Shared engine is closed when a client created with config method is closed
• KTOR-9485 Apache5: FutureCallback never called, breaking Java agent instrumentation
• KTOR-9497 Darwin: SIGABRT crash when close() races with in-flight execute() since 3.4.2
• KTOR-9431 SuspendFunctionGun: ThreadContextElement leaks across requests when interceptor suspends
• KTOR-9423 CannotTransformContentToTypeException leaks internal class names in response body
• KTOR-9461 Incorrect link to the OWASP cheatsheet in the KDoc for CSRF plugin
• KTOR-9476 Unable to update/remove session data if no response content
• KTOR-9343 HttpRequestLifecycle plugin with cancelCallOnClose on, cancels subsequent requests when CallLogging plugin with callIdMdc is installed

v3.4.2

Compare Source

Published 27 March 2026

Improvements

• KTOR-9327 Curl: The WebSockets maxFrameSize option does not have an effect
• KTOR-9383 CaseInsensitiveString: reduce allocations
• KTOR-9385 Netty: Allocation micro-optimizations
• KTOR-9403 Darwin: Unnecessary ByteArray copy for each received response chunk
• KTOR-9412 KDoc for formFieldLimit documents incorrect default value (64 KB instead of 50 MiB)

Bugfixes

• KTOR-9351 OpenAPI: Incorrect schema generated for nested classes with lists
• KTOR-9361 WebSockets: JsWebSocketSession._closeReason is completed twice
• KTOR-9437 Fix GraalVM Compatibility
• KTOR-9424 Logging: OkHttp format should log the full requested URL
• KTOR-8540 Logging: IllegalStateException is thrown when response is cached and deserialization fails
• KTOR-9370 OpenAPI: NoSuchMethodError - getLOCAL_FUNCTION_FOR_LAMBDA with Kotlin 2.3.20-*
• KTOR-9421 Netty: active SSE connection blocks HTTP/2 response flushing for other requests
• KTOR-3390 JS browser: "Failed to execute 'digest' on 'SubtleCrypto'" error when using digest auth
• KTOR-5977 Compression: The encoders buffer streaming response
• KTOR-9393 Certificate pinning matches against all pins instead of hostname-scoped pins
• KTOR-8751 DI: AmbiguousDependencyException when named dependency is overridden in testApplication
• KTOR-9039 Bearer Auth: Request body transformed with jsonIO isn't sent over again after refreshToken request
• KTOR-9404 Darwin: Memory leak in KtorNSURLSessionDelegate
• KTOR-9399 LinkageError when running Ktor app with development mode inside Spring Boot / Amper fat-JAR
• KTOR-9402 NoSuchMethodError on RawWebSocket after 3.4.0
• KTOR-9372 Frame.Text.readText() causes infinite loop and 100% CPU on Kotlin/Native when WebSocket frame data is malformed or connection drops unexpectedly
• KTOR-9387 ZstdEncoder decode fails when source data is split into multiple Zstd frames

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