v3.2.3

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Published 29 July 2025

Improvements

• Server only accepts yaml as the configuration file suffix (KTOR-8712)
• JS / WASM error when process global is undefined (KTOR-8686)
• DI async duplicate resolution (KTOR-8681)

Bugfixes

• CIO: Expect 100-continue response is missing a final \r\n (KTOR-8687)
• Intermittent "ParserException: No colon in HTTP header" when parsing multipart request (KTOR-8523)
• Infinite loop in ByteReadChannel.readFully (KTOR-8682)
• ShutDownUrl: The server cannot shut down since 3.2.0 (KTOR-8674)

v3.2.2

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Published 14 July 2025

Improvements

• SSE: Change the order of SSE field serialization: put event before data (KTOR-8627)

Bugfixes

• CORS: server replies with the 405 status code on a preflight request when the plugin is installed in a route (KTOR-4499)
• Darwin: The Content-Encoding header is removed since 3.0.3 (KTOR-8526)
• JS/WASM: response doesn't contain the Content-Length header in a browser (KTOR-8377)
• StatusPages: response headers of OutgoingContent aren't available in the status handlers (KTOR-8232)
• testApplication: The client.sse() acts like a REST call and not a stream in test environment (KTOR-7910)
• Config deserialization - default properties problem (KTOR-8654)
• kotlinx.datetime is not available transitively in 3.2.1 (KTOR-8656)
• Request builder block overrides HTTP method in specific request builders (get, post, etc) (KTOR-8636)

v3.2.1

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Published 3 July 2025

Improvements

• Replace kotlinx.datetime APIs with kotlin.time (KTOR-8635)
• Thymeleaf: null values in template model (KTOR-8559)
• Publish Javadoc as a maven artifact (KTOR-3962)
• Netty: Invalid hex byte with malformed query string (KTOR-2934)

Bugfixes

• "Space characters in SimpleName" error when executing R8 mergeExtDex task with 3.2.0 (KTOR-8583)
• ForwardedHeaders: the plugin does not handle parameters case-insensitively (KTOR-8622)
• Potential race condition in socket.awaitClosed (hangs indefinitely) since 3.2.0 (KTOR-8618)
• Module parameter type Application.() -> kotlin.Unit is not supported in 3.2.0 (KTOR-8602)
• OkHttp: java.net.ProtocolException when sending MultiPartFormDataContent with onUpload (KTOR-6790)
• OAuth2 authentication provider breaks form-urlencoded POST requests when receiving request body (KTOR-4420)
• 404 for a link in KDoc for io.ktor.server.plugins.contentnegotiation.ContentNegotiation (KTOR-8597)
• Ktor fails to boot with default jvminline argument (KTOR-8608)
• Flow invariant is violated since 3.2.0 (KTOR-8606)
• ResponseSent hook handler of the plugin installed into a route isn't executed when an exception is thrown from the route (KTOR-6794)