deps(deps): bump ktor from 3.4.2 to 3.5.0

[dependabot]

Bumps ktor from 3.4.2 to 3.5.0.
Updates io.ktor:ktor-server-core from 3.4.2 to 3.5.0

Release notes

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

3.5.0

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

... (truncated)

Changelog

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

3.5.0

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

... (truncated)

Commits

• 3ccad96 Release 3.5.0 (#5612)
• decd09f Update report links (#5616)
• ba5bbc5 Rethrow cancellation in Digest.build (#5618)
• 1653559 Update kotlinx-serialization to v1.11.0
• eb593ac Update kotlinx-coroutines to v1.11.0
• 043d400 Update dependency org.jetbrains.kotlinx:kotlinx-io-core to v0.9.0
• 75a8324 Update dependency com.squareup.okio:okio to v3.17.0
• 757c3da Update dependency com.google.code.gson:gson to v2.14.0
• 4b79685 Update dependency com.auth0:jwks-rsa to v0.24.0
• 6fe542f Update tomcat.jakarta to v10.1.55
• Additional commits viewable in compare view

Updates io.ktor:ktor-server-netty from 3.4.2 to 3.5.0

Release notes

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

3.5.0

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

... (truncated)

Changelog

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

3.5.0

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

... (truncated)

Commits

• 3ccad96 Release 3.5.0 (#5612)
• decd09f Update report links (#5616)
• ba5bbc5 Rethrow cancellation in Digest.build (#5618)
• 1653559 Update kotlinx-serialization to v1.11.0
• eb593ac Update kotlinx-coroutines to v1.11.0
• 043d400 Update dependency org.jetbrains.kotlinx:kotlinx-io-core to v0.9.0
• 75a8324 Update dependency com.squareup.okio:okio to v3.17.0
• 757c3da Update dependency com.google.code.gson:gson to v2.14.0
• 4b79685 Update dependency com.auth0:jwks-rsa to v0.24.0
• 6fe542f Update tomcat.jakarta to v10.1.55
• Additional commits viewable in compare view

Updates io.ktor:ktor-server-content-negotiation from 3.4.2 to 3.5.0

Release notes

Sourced from io.ktor:ktor-server-content-negotiation's releases.

3.5.0

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

... (truncated)

Changelog

Sourced from io.ktor:ktor-server-content-negotiation's changelog.

3.5.0

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

... (truncated)

Commits

• 3ccad96 Release 3.5.0 (#5612)
• decd09f Update report links (#5616)
• ba5bbc5 Rethrow cancellation in Digest.build (#5618)
• 1653559 Update kotlinx-serialization to v1.11.0
• eb593ac Update kotlinx-coroutines to v1.11.0
• 043d400 Update dependency org.jetbrains.kotlinx:kotlinx-io-core to v0.9.0
• 75a8324 Update dependency com.squareup.okio:okio to v3.17.0
• 757c3da Update dependency com.google.code.gson:gson to v2.14.0
• 4b79685 Update dependency com.auth0:jwks-rsa to v0.24.0
• 6fe542f Update tomcat.jakarta to v10.1.55
• Additional commits viewable in compare view

Updates io.ktor:ktor-serialization-jackson from 3.4.2 to 3.5.0

Release notes

Sourced from io.ktor:ktor-serialization-jackson's releases.

3.5.0

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

... (truncated)

Changelog

Sourced from io.ktor:ktor-serialization-jackson's changelog.

3.5.0

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

... (truncated)

Commits

• 3ccad96 Release 3.5.0 (#5612)
• decd09f Update report links (#5616)
• ba5bbc5 Rethrow cancellation in Digest.build (#5618)
• 1653559 Update kotlinx-serialization to v1.11.0
• eb593ac Update kotlinx-coroutines to v1.11.0
• 043d400 Update dependency org.jetbrains.kotlinx:kotlinx-io-core to v0.9.0
• 75a8324 Update dependency com.squareup.okio:okio to v3.17.0
• 757c3da Update dependency com.google.code.gson:gson to v2.14.0
• 4b79685 Update dependency com.auth0:jwks-rsa to v0.24.0
• 6fe542f Update tomcat.jakarta to v10.1.55
• Additional commits viewable in compare view

Updates io.ktor:ktor-server-openapi from 3.4.2 to 3.5.0

Release notes

Sourced from io.ktor:ktor-server-openapi's releases.

3.5.0

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
• Description has been truncated

[claude]

Code Review: Ktor 3.4.2 → 3.5.0 Dependency Bump

Overview

Straightforward Dependabot-generated minor version bump of Ktor across all modules (server-core, server-netty, content-negotiation, serialization-jackson, server-openapi, server-swagger, server-routing-openapi). Single-line change in the version catalog; all modules share the same ktor version ref, so they all upgrade atomically.

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Assessment: Low Risk — Looks Good to Merge

Kotlin compatibility: No concern. Ktor 3.5.0 targets Kotlin 2.3.21, and the project is already on Kotlin 2.3.21 — no compatibility gap.

Scope: Only gradle/libs.versions.toml is touched. No code changes required from this upgrade.

---

Notable 3.5.0 Changes Relevant to This Project

Potentially beneficial:

• Custom SSE heartbeat function (KTOR-9555) — the project uses SSE for the MCP server (Server command). This new capability could improve connection keep-alive behavior, worth exploring as a follow-up.
• OpenAPI: Support prefixItems in JsonSchema (KTOR-9506) — project uses ktor-server-openapi and ktor-server-swagger, this is additive.

Deprecations to be aware of (not blocking):

• HttpHeaders.AcceptCharset is now deprecated (KTOR-9355). If any MCP/server code sets this header explicitly, it will emit a deprecation warning at compile time. Worth a quick grep post-merge:

  grep -r 'AcceptCharset' src/
  

• io.ktor.server.auth.Principal deprecation notice was improved (KTOR-9552). If the project uses Ktor's auth plugin, check for new warnings.

---

No Concerns With

• Breaking changes: Minor version bump (3.4.x → 3.5.x); Ktor follows semver for API stability within a major version.
• ktor-serialization-jackson: Still present. Its project-level deprecation in favor of kotlinx.serialization is pre-existing and unrelated to this bump.
• Test coverage: No logic changed; the existing test suite is the appropriate coverage vehicle.

---

Recommendation

Approve and merge. Kotlin version alignment is already in place, the change is isolated, and 3.5.0 is fully additive. The SSE heartbeat improvement is worth a follow-up if MCP connection stability ever becomes a concern.

[github-actions]

Code Coverage

Total Project Coverage	71.27%	❌