SwiftNIO HTTP/2 1.2.1

Semver Patch

• Fixed an issue where stream channels would not be closed if the underlying transport vanished. (#131)
• Fixed an issue where flushed frames could very rarely get "stuck" and not emitted until the next flush. (#125)
• Fixed an issue where flow controlled inbound frames could have their flow control state counted more than once. (#114)
• Improved performance by removing indirection between stream channels and the stream multiplexer. (#126)
• Fixed up system for notifying stream channels that they've become active, avoiding issues when setting up such channels. (#124)
• Correctly notify the outbound frame buffer of changes to the remote peer's value of SETTINGS_MAX_CONCURRENT_STREAMS. (#113)
• Allow closing idle stream channels that have never been used. (#123)
• Improved performance by removing unnecessary future callbacks in stream channel setup. (#116)
• Reduced heap allocations when creating stream channels. (#115)
• Reduced heap allocations when decoding HPACK header blocks. (#118)
• Reduced copying when transforming between HTTP/1 and HTTP/2 header blocks. (#112)
• Removed an inadvertent copy-on-write when buffering inbound frame bytes. (#111)
• Boxed some cases of HTTP2Frame.FramePayload to avoid the costs of copying the data about. (#110)
• Improved test setup. (#129, #130)
• Added allocation tests. (#122)
• Added performance tests. (#117)
• Turned on warnings as errors in CI. (#127)

SwiftNIO HTTP/2 1.2.0

Semver Minor

• Added support for policing correct content length headers, with support for disabling these checks if needed. (#98)

Semver Patch

• Fixed an off-by-one error when calculating the valid bounds of certain HTTP/2 settings. (#97)
• Fixed an issue where we'd incorrectly reject headers that were larger than the dynamic table size, instead of flushing the table. (#99)
• Fixed an issue where max stream ID was forbidden in GOAWAY when sent by servers. (#102)
• Removed unnecessary memory copies in the state machine. (#104)
• Avoided unnecessary heap allocation when parsing frame headers. (#107)
• Fixed an issue where NIO would consider WINDOW_UPDATE frames on closed streams to be a connection error of type PROTOCOL_ERROR. (#109)
• Added "Show on Github" link to API docs. (#108)

SwiftNIO HTTP/2 1.1.0

Semver Minor

• Added additional validation for inbound and outbound HPACK headers. This change adds a number of new errors and a new API to NIOHTTP2Handler to disable this validation. (#84, #90, #91, #94, #95)
• Rewrote the representation of HPACK headers for a substantial performance improvement. (#89)

Semver Patch

• Fixed a bug where zero-length SETTINGS frames would be treated as an error. (#88)
• Substantially decreased the allocation overhead of encoding HTTP headers. (#86)
• Documentation cleanups. (#82, #82)

SwiftNIO HTTP/2 1.0.1

Semver Patch

• Added validation to enforce that END_STREAM is set on HEADERS frames containing trailers. (#81)
• Forced HTTP2StreamMultiplexer to forward on channelActive to the parent channel. (#80)
• Miscellaneous docs fixes. (#76, #77, #78)

SwiftNIO HTTP/2 1.0.0

This is the first major release of SwiftNIO HTTP/2. It substantially changes the API and moves the implementation to a pure-Swift model. As the changes are so large, we do not have release notes here: please consider the 1.0 revision as an entirely clean slate.

SwiftNIO HTTP/2 0.2.1

Semver Patch

• Initiate HTTP/2 parser on handlerAdded as well as on channelActive, to facilitate adding HTTP/2 handlers to pipelines after setup. (#36)

SwiftNIO HTTP/2 0.2.0

Semver Major

• Changed around the types used on HTTP2Frame. (#16)
• Formally required Swift 4.1, though Swift 4.0 never worked with this repo. (#21)

Semver Minor

• Added support for newish nghttp2 versions. (#23)
• Added support for old nghttp2 versions. (#29)

Semver Patch

• Laid some groundwork for pure-Swift implementation. (#10, #14)
• Fixed issue where child channels would not be correctly activated. (#27)
• Fixed issue where trailers would fail to be sent. (#25)
• Prevented crashes when the client preamble was invalid. (#12)
• Prevented crashes when SETTINGS_MAX_CONCURRENT_STREAMS was set to be higher than the cache of old streams. (#13)
• Prevented crashes due to discarding active streams instead of invalid ones. (#11)
• Cleaned up submodule checkout. (#20)
• Documentation improvements. (#18)
• Many test improvements (#8, #9, #15)