SwiftNIO 2.6.1

SemVer Patch

• Deliver HTTPServerUpgradeHandler data on removal. (#1092)
• HTTPDecoder: don't deliver unsolicited responses (#1093)
• really no double handlerRemoved calls (#1094)
• Fail promise in MessageToByteHandler write error cases (#1096)

SwiftNIO 2.6.0

Semver Minor

• Fixed a crash when a client received an unsolicited HTTP response: now errors instead. (#1084)

Semver Patch

• Fixed an issue where handlerRemoved could be called multiple times, leading to crashes in ByteToMessageDecoders. (#1091)
• Enhanced MultiThreadedEventLoopGroup to support being shut down multiple times. (#1085, #1089)
• Prevented ByteBuffer.viewBytes from crashing when passing it a negative length. (#1082)
• Testing improvements. (#1086, #1090)
• New WebSocket client example. (#1064, #1087)

SwiftNIO 2.5.1

SemVer Patch

• Make pipeline handler behave better when removed (#1080)

SwiftNIO 2.5.0

Semver Minor

• Deprecated and replaced ByteBuffer.set(buffer:at:) with ByteBuffer.setBuffer(_:at:). (#1078)

Semver Patch

• Enforced that shutting down EventLoopGroups not directly created by you is illegal. (#1055)
• Improved performance of EventLoopFuture.reduce. (#1069, #1070)
• Fixed an issue when subtracting two NIODeadline structures could lead to a crash. (#1074)
• Miscellaneous testing improvements. (#1062, #1067, #1068, #1076, #1077, #1079)

SwiftNIO 2.4.0

SemVer Minor

• Add a WebSocket client upgrader. (#1038)
• EventLoopPromise.completeWith(Future), mirroring ELF.cascade(to:) (#1053)

SemVer Patch

• HTTPDecoder: Don't invoke left overs strategy on EOF (#1061)
• check breakages: fail loudly when unable to checkout tag (#1060)
• Check jq is available before checking API breakages (#1058)
• various patches (#1063, #1051, #1050)

SwiftNIO 2.3.0

Semver Minor

• Enable TCP_NODELAY by default on all TCP channels. (#1020)
• Enabled heuristic to control whether NIO will copy data from ByteBuffer to Data or whether it will share the buffer, as well as APIs to explicitly control that choice. (#1046)
• Fixed issue where fcntl failing to set an accepted socket into non-blocking mode would cause the closure of the entire listening socket. (#1041)
• Add a HTTP client upgrade handler. (#1001)
• Made EmbeddedChannel.isWritable mutable. (#1023)
• Added CircularBuffer.modify. (#1009)

Semver Patch

• Returned a NIOFileHandle(path:) constructor that was accidentally removed. (#1045)
• Fixed an issue where setting a socket to non-blocking mode could clobber any other flags on that socket. (#1040)
• Fixed an issue where IPv6 tests would incorrectly run on a system without appropriate IPv6 support. (#1028)
• Improved AcceptHandler to prevent it swallowing errors when attempting to quiesce channels. (#1015)
• Added optimisation tips document. (#1024)
• Extra EmbeddedChannel testing. (#1033)
• Added continuous performance reporting. (#1044)
• Miscellaneous testing & documentation cleanups and improvements. (#1043, #1034, #1032, #1026, #1025, #1022, #1021, #1019, #1016, #1013)

SwiftNIO 2.2.0

Semver Minor

• Added EventLoopFuture.always. (#981)
• Added HTTPHeaders.add(contentsOf:). (#1004)
• Added new ByteToMessageDecoder verifier test utility. (#939)
• Added EventCounterHandler test utility. (#1005)

Semver Patch

• Removed some hardcoded features of the allocation counter script. (#999)
• Improved the temporary directory management of the allocation counter script. (#1000)
• Cleaned up misleading code comment. (#1012)
• Cleaned up docker files. (#1007, #1010)

SwiftNIO 2.1.1

SemVer Patch (repair accidental SemVer Major)

• undo tiny public API breakage #1008

SwiftNIO 2.1.0

Semver Minor

• Added an API to construct a ByteBuffer from a ByteBufferView. (#958)
• Added an API to limit the maximum buffer size of a ByteToMessageDecoder. (#957, #998)
• Extended NonBlockingFileIO to allow opening a file for writing. (#975, #990)
• Added NIOCloseOnErrorHandler. (#967)
• Conformed HTTPMethod to RawRepresentable with a raw type of String. (#976)
• Added an API to get a ChannelHandler from the pipeline. (#974)
• Made ChannelOptions.Storage initializer public. (#988)
• Renamed WebSocketUpgrader to NIOWebSocketServerUpgrader and deprecated the old name. (#983)

Semver Patch

• Improved performance by rewriting internal Heap implementation. (#960)
• Fixed example HTTP server to avoid crashing when serving an empty file. (#962)
• Removed invalid assert in CircularBuffer that caused crashes on 32 bit architectures. (#978)
• Fixed a bug where HTTPDecoder would incorrectly retain too many bytes, and replay them on handler removal in some cases. (#984)
• Made MarkedCircularBuffer implementation @inlineable. (#993)
• Improved the performance of constructing HTTPHeaders from an array of tuples. (#994)
• Fixed an issue where HTTPDecoder would crash if it received a response without headers. (#997)
• Added a link to GitHub implementation in documentation. (#977)
• Started testing on Swift 5.1. (#991, #995)
• Various documentation cleanups. (#979, #989)
• Removed some warnings in the tests. (#982)
• Started using new allocation test framework. (#996)

SwiftNIO 2.0.2

SemVer Patch

• Add 'Show on GitHub' link to API docs (#977)
• CircularBuffer.Index: remove bogus assert (#978)
• Remove unnecessary warnings in HeapTests (#982)
• Avoid keeping hold of partial bytes forever. (#984)