• OkHttp: Can't reuse same HttpRequestBuilder for different network clients (KTOR-949)
• Empty body in response using macosX64 target (KTOR-479)
• Native: InvalidMutabilityException creating HttpClient (KTOR-915)
• MultiPartData.readAllParts() throws java.io.IOException when multipart list is empty (KTOR-767)
• kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen io(.ktor.client.request.HttpRequestPipeline (KTOR-693)
• "FreezingException: freezing of InvokeOnCompletion has failed" using native-mt coroutines (KTOR-973)
• kotlin.native.concurrent.InvalidMutabilityException with 1.3.3-native-mt (KTOR-497)
• Parser Exception in header with character code 1 not allowed (KTOR-860)
• Calling HttpStatement#toString more than once throws IllegalArgumentException (KTOR-1005)
• Wrong session id get stuck at clients (KTOR-1007)
• Exception after WebSocketSession.close() invocation. (KTOR-847)
• Error Ktor running on background thread on iOS (KTOR-499)
• HttpClient can only be used on the main thread for native targets (KTOR-491)
• Ignore content length when transfer encoding is chunked for CIO server (KTOR-1036)
• ConcurrentList.increaseCapacity() throws ArrayIndexOutOfBoundsException (KTOR-1034)
• Ktor 1.3.1 Fails File Upload with MalformedInputException (KTOR-391)
• Update library versions, fix config after release (KTOR-1027)
• Fix parsing urls with trailing spaces (KTOR-886)
• 1.4.0: breaking change by making response nullable in ResponseException (KTOR-916)
• Netty: Not started servers leak resources (KTOR-939)
• Ktor websocket client passes configured max frame as timeout millis (KTOR-923)
• Routing: get matcher has higher priority than param matcher on the same level (KTOR-792)
• Confusing log message about failed session lookup (KTOR-776)
• Implement runtime check of using native-mt coroutines (KTOR-956)
• Http parse security issue (KTOR-841)
• Bumped versions:
  • kotlinx.coroutines 1.3.9-native-mt-2
  • kotlinx.serialization 1.0.0-RC2
  • kotlin 1.4.10