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Deps(deps): Bump the ktor group across 1 directory with 4 updates#23
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dependabot/gradle/ktor-8bd9c188a6

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@dependabot dependabot bot commented on behalf of github Mar 30, 2026 •
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Bumps the ktor group with 4 updates in the / directory: io.ktor:ktor-server-core-jvm, io.ktor:ktor-server-netty-jvm, io.ktor:ktor-server-test-host-jvm and io.ktor.plugin.

Updates io.ktor:ktor-server-core-jvm from 3.3.3 to 3.4.2

Release notes

Sourced from io.ktor:ktor-server-core-jvm's releases.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true
  • KTOR-9289 OpenAPI: Resource routes are missing inferred and comment-based documentation

... (truncated)

Changelog

Sourced from io.ktor:ktor-server-core-jvm's changelog.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true

... (truncated)

Commits
  • 1567ffe Add changelog for 3.4.2 (#5496)
  • f70e63e KTOR-9415 Add filter predicate to MicrometerMetrics plugin (#5482)
  • 8420da6 Move decompression to earlier phase in receivePipeline. (#5360)
  • 5739f8d fix: improve error message when deserializing generic type with non-@​Serializ...
  • 5710ef9 KTOR-6651 Server Auth JWT. Run 'jwkProvider.get' using Dispatchers.IO (#5451)
  • a5546d2 KTOR-9421 Track streaming responses separately to fix SSE blocking flush (#5330)
  • 72ea6c9 docs: HttpRequestRetry and HttpTImeout installation order (#5404)
  • cf1b01f KTOR-7416 Allow custom Host header in Java and Jetty client engines (#5401)
  • c91aa74 KTOR-9383 CaseInsensitiveMap and StringValuesImpl: zero-allocation header sto...
  • d4763ca KTOR-8751 Fix AmbiguousDependencyException during DI shutdown (#5391)
  • Additional commits viewable in compare view

Updates io.ktor:ktor-server-netty-jvm from 3.3.3 to 3.4.2

Release notes

Sourced from io.ktor:ktor-server-netty-jvm's releases.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true
  • KTOR-9289 OpenAPI: Resource routes are missing inferred and comment-based documentation

... (truncated)

Changelog

Sourced from io.ktor:ktor-server-netty-jvm's changelog.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true

... (truncated)

Commits
  • 1567ffe Add changelog for 3.4.2 (#5496)
  • f70e63e KTOR-9415 Add filter predicate to MicrometerMetrics plugin (#5482)
  • 8420da6 Move decompression to earlier phase in receivePipeline. (#5360)
  • 5739f8d fix: improve error message when deserializing generic type with non-@​Serializ...
  • 5710ef9 KTOR-6651 Server Auth JWT. Run 'jwkProvider.get' using Dispatchers.IO (#5451)
  • a5546d2 KTOR-9421 Track streaming responses separately to fix SSE blocking flush (#5330)
  • 72ea6c9 docs: HttpRequestRetry and HttpTImeout installation order (#5404)
  • cf1b01f KTOR-7416 Allow custom Host header in Java and Jetty client engines (#5401)
  • c91aa74 KTOR-9383 CaseInsensitiveMap and StringValuesImpl: zero-allocation header sto...
  • d4763ca KTOR-8751 Fix AmbiguousDependencyException during DI shutdown (#5391)
  • Additional commits viewable in compare view

Updates io.ktor:ktor-server-test-host-jvm from 3.3.3 to 3.4.2

Release notes

Sourced from io.ktor:ktor-server-test-host-jvm's releases.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true
  • KTOR-9289 OpenAPI: Resource routes are missing inferred and comment-based documentation

... (truncated)

Changelog

Sourced from io.ktor:ktor-server-test-host-jvm's changelog.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true

... (truncated)

Commits
  • 1567ffe Add changelog for 3.4.2 (#5496)
  • f70e63e KTOR-9415 Add filter predicate to MicrometerMetrics plugin (#5482)
  • 8420da6 Move decompression to earlier phase in receivePipeline. (#5360)
  • 5739f8d fix: improve error message when deserializing generic type with non-@​Serializ...
  • 5710ef9 KTOR-6651 Server Auth JWT. Run 'jwkProvider.get' using Dispatchers.IO (#5451)
  • a5546d2 KTOR-9421 Track streaming responses separately to fix SSE blocking flush (#5330)
  • 72ea6c9 docs: HttpRequestRetry and HttpTImeout installation order (#5404)
  • cf1b01f KTOR-7416 Allow custom Host header in Java and Jetty client engines (#5401)
  • c91aa74 KTOR-9383 CaseInsensitiveMap and StringValuesImpl: zero-allocation header sto...
  • d4763ca KTOR-8751 Fix AmbiguousDependencyException during DI shutdown (#5391)
  • Additional commits viewable in compare view

Updates io.ktor.plugin from 3.3.3 to 3.4.2

Updates io.ktor:ktor-server-netty-jvm from 3.3.3 to 3.4.2

Release notes

Sourced from io.ktor:ktor-server-netty-jvm's releases.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true
  • KTOR-9289 OpenAPI: Resource routes are missing inferred and comment-based documentation

... (truncated)

Changelog

Sourced from io.ktor:ktor-server-netty-jvm's changelog.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true

... (truncated)

Commits
  • 1567ffe Add changelog for 3.4.2 (#5496)
  • f70e63e KTOR-9415 Add filter predicate to MicrometerMetrics plugin (#5482)
  • 8420da6 Move decompression to earlier phase in receivePipeline. (#5360)
  • 5739f8d fix: improve error message when deserializing generic type with non-@​Serializ...
  • 5710ef9 KTOR-6651 Server Auth JWT. Run 'jwkProvider.get' using Dispatchers.IO (#5451)
  • a5546d2 KTOR-9421 Track streaming responses separately to fix SSE blocking flush (#5330)
  • 72ea6c9 docs: HttpRequestRetry and HttpTImeout installation order (#5404)
  • cf1b01f KTOR-7416 Allow custom Host header in Java and Jetty client engines (#5401)
  • c91aa74 KTOR-9383 CaseInsensitiveMap and StringValuesImpl: zero-allocation header sto...
  • d4763ca KTOR-8751 Fix AmbiguousDependencyException during DI shutdown (#5391)
  • Additional commits viewable in compare view

Updates io.ktor:ktor-server-test-host-jvm from 3.3.3 to 3.4.2

Release notes

Sourced from io.ktor:ktor-server-test-host-jvm's releases.

3.4.2

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

3.4.1

Published 3 March 2026

Improvements

  • KTOR-9382 HttpProtocolVersion.parse: fast path for common versions
  • KTOR-9381 GMTDate: reduce allocations
  • KTOR-8971 Support "operationId" in Kdoc for OpenAPI spec. gen.
  • KTOR-9333 WebSockets: Infinite spin and potential OOM vulnerabilities in the Inflater.inflateFully method
  • KTOR-5616 Ktor always adds by default an Accept-Charset header
  • KTOR-9291 OpenAPI: handle atypical route functions
  • KTOR-9293 OpenAPI describe needs defaults
  • KTOR-9304 OpenAPI: Order of path parameters is not preserved in the spec
  • KTOR-9353 Routing: TailcardSelector missing toString(), which clutters the logs

Bugfixes

  • KTOR-9281 OpenApi code inference misses lambda argument bodies
  • KTOR-9273 OpenAPI static content path appears in resulting model
  • KTOR-9004 OpenAPI: No respective formats detected for serializable types like UUID or Instant
  • KTOR-9305 OpenAPI: "No mapping for symbol: VAR FOR_LOOP_VARIABLE" error with codeInferenceEnabled=true
  • KTOR-9279 OpenAPI: UnsupportedOperationException for a function with a reified type parameter codeInferenceEnabled = true
  • KTOR-9289 OpenAPI: Resource routes are missing inferred and comment-based documentation

@dependabot
Deps(deps): Bump the ktor group across 1 directory with 4 updates
784d90a 
Bumps the ktor group with 4 updates in the / directory: [io.ktor:ktor-server-core-jvm](https://github.com/ktorio/ktor), [io.ktor:ktor-server-netty-jvm](https://github.com/ktorio/ktor), [io.ktor:ktor-server-test-host-jvm](https://github.com/ktorio/ktor) and io.ktor.plugin.


Updates `io.ktor:ktor-server-core-jvm` from 3.3.3 to 3.4.2
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](ktorio/ktor@3.3.3...3.4.2)

Updates `io.ktor:ktor-server-netty-jvm` from 3.3.3 to 3.4.2
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](ktorio/ktor@3.3.3...3.4.2)

Updates `io.ktor:ktor-server-test-host-jvm` from 3.3.3 to 3.4.2
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](ktorio/ktor@3.3.3...3.4.2)

Updates `io.ktor.plugin` from 3.3.3 to 3.4.2

Updates `io.ktor:ktor-server-netty-jvm` from 3.3.3 to 3.4.2
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](ktorio/ktor@3.3.3...3.4.2)

Updates `io.ktor:ktor-server-test-host-jvm` from 3.3.3 to 3.4.2
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](ktorio/ktor@3.3.3...3.4.2)

Updates `io.ktor.plugin` from 3.3.3 to 3.4.2

---
updated-dependencies:
- dependency-name: io.ktor:ktor-server-core-jvm
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
- dependency-name: io.ktor:ktor-server-netty-jvm
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
- dependency-name: io.ktor:ktor-server-test-host-jvm
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
- dependency-name: io.ktor.plugin
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
- dependency-name: io.ktor:ktor-server-netty-jvm
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
- dependency-name: io.ktor:ktor-server-test-host-jvm
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
- dependency-name: io.ktor.plugin
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ktor
...

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