2.16.0 - Deal with Sendable and clean up package in general

What's Changed

Deal with Sendable and clean up package in general by @gwynne in #158

Covers fixing a bunch of Sendable things and does the usual round of package cleanup - bump the Swift minimum to 5.10, update the CI and the README, and so forth. Also fixes up some issues in the tests.

Reviewers

Thanks to the reviewers for their help:

• @MahdiBM

This patch was released by @gwynne

Full Changelog: 2.15.0...2.16.0

2.15.0 - Allow `send(_ binary:)` to accept `some DataProtocol`

What's Changed

Allow send(_ binary:) to accept some DataProtocol by @fizker in #146

This allows for passing in Data or ByteBufferView to send(_:), as well as the currently-supported [UInt8] type.

This patch was released by @0xTim

Full Changelog: 2.14.0...2.15.0

Pass a copy of the control frame buffer to ping/pong callbacks

This patch was authored by @tkrajacic and released by @0xTim.

This PR enables access to the data in the control frames handled via onPing/onPong via a new API with the existing onPing and onPong methods being deprecated.

Bump the swift-tools-version to 5.7

This patch was authored by @Joannis and released by @0xTim.

Set the minimum supported Swift version to 5.7. This is due to the usage of @preconcurrency

Revert Sendable Take 2

Reverts 2.12.0, in order to maintain compatibility with Swift 5.6 users.

Sendable Take 2

This patch was authored and released by @0xTim.

Adds Sendable annotations where possible. This time we're using @preconcurrency to suppress errors in unsafe code from downstream users

Revert "Add Sendable conformances to WebsocketKit (#131)"

This patch was authored and released by @gwynne.

Due to unforeseen source compatibility breakage, this backs out the changes from release 2.10.0 for now.

Add Sendable conformances to WebsocketKit

This patch was authored and released by @0xTim.

Bump minimum Swift version to 5.6 and add Sendable conformances where appropriate

Work around apple/swift#66099

This patch was authored and released by @gwynne.

Avoids hitting swiftlang/swift#66099. Holding off on reenabling TSan in CI for now due to remaining warnings about race conditions managing callbacks.

Update for new NIOSSL

This patch was authored and released by @gwynne.

Fix for SwiftNIOSSL 2.23.1 breaking the build of the WebSocket tests due to EVP_PKEY no longer being visible.

Shoutout and thanks to @jhoughjr for reporting the problem!

Additional changes:

• Require Swift 5.6 (matching the rest of Vapor)
• Update CI (wouldn't be an @gwynne PR without CI tweaks!)
• Enable Concurrency back-deployment
• Normalize platform support
• Some very minor code quality cleanups
• Added several missing tests (binary frames, manual pings, automatic pings, various connect methods)