apple/swift-nio 2.28.0 on GitHub

Better error type for inactive thread pools (#1787)
Add 'promise' versions of EventLoopFuture.{and,when}All{succeed,complete} (#1794)
Create EmbeddedChannel with multiple handlers (#1798)

Add custom cleanup hook to allow PipeChannel to properly deregister during halfclose (#1793, patch credit to @hassila)
Split Selector into separate files per backend. (#1795, patch credit to @hassila)
Fix bug in eventfd(initval: Int32, flags: Int32) (#1797, patch credit to @hassila)
Add sequenceIdentifier to Registrations to handle outdated events (#1799, patch credit to @hassila)
Make ChannelHandler removal cheaper. (#1784)
Sometimes @escaping is a lie. (#1786)
refactor registration IDs (#1801)
Change redundant 'public' access modifiers (#1803)
generic integer bit packing (#1807)
fix compilation on Ubuntu 14.04 and other old Linuxes (#1810)
Fix crash: Create ByteBuffer Slice from ByteBuffer Slice after 16MB (#1813)
implement CircularBuffer.first: to prevent allocs (#1814)
Selectors: make file descriptors CInts everywhere (#1815)
Fewer allocations in EventLoopFuture chains (#1816, #1818)
Implement reserveCapacity for CircularBuffer. (#1819)

add experimental async/await support in _NIOConcurrency (#1701, #1791, #1802)
Wrap concurrency code with @available(macOS 9999, etc) (#1809, patch credit to @adam-fowler)
Update documentation related to allocation troubleshooting on Linux and the ability to run unit tests in parallel (#1796, patch credit to @hassila)
docker setup for main nightlies (#1752)
Support multiple shared files in the allocation counter test framework (#1782)
Update NIOSSH version in README (#1783)
Add allocation counter tests handler add/remove (#1785)
normalise alloc counter slack (#1789)
disable tests on Swift main branch CI runs (#1790)
support qemu: qemu returns ENOPROTOOPT for unknown socket opts (#1806)
alloc-limits-from-test-output: support more formats (#1812)
script to download & apply alloc limits from Jenkins (#1817)

apple/swift-nio 2.28.0 SwiftNIO 2.28.0 on GitHub