This is a minor maintenance release appropriate for all ServiceTalk users that contains several useful improvements and bug fixes. This release is expected to be a "drop-in" replacement for all prior 0.42.X releases.

Changes

Behavior Changes

• https://github.com/apple/servicetalk/commit/d273d3773f4e5672c9ad366816a7433975045ae9 - Always return DomainSocketAddress for Unix Domain Socket transport (#3309)
• In previous releases, users of Unix Domain Socket transport could see that ServerContext and ConnectionInfo may return io.netty.channel.unix.DomainSocketAddress type instead of io.servicetalk.transport.api.DomainSocketAddress they used to bootstrap client or server. In this release, we corrected to always return io.servicetalk.transport.api.DomainSocketAddress type consistently from all public API.

API deprecations

• https://github.com/apple/servicetalk/commit/d699fb01298fd5a1ddf986467ac0e3f08f156f8d - opentelemetry-http: consolidate filter parameters into OTEL filter builders (#3317)
• OpenTelemetryOptions and all public constructors of OpenTelemetryHttpRequesterFilter and OpenTelemetryHttpServiceFilter are deprecated now, users should use corresponding builders: OpenTelemetryHttpRequesterFilter.Builder and OpenTelemetryHttpServiceFilter.Builder to configure their filters.
• https://github.com/apple/servicetalk/commit/ec66fa9d3e864e090c49b3c4e551366a097d30b0 - Deprecate DomainSocketAddress.getPath() in favor of path() (#3323)
• Deprecate DomainSocketAddress.getPath() and introduce DomainSocketAddress.path() instead.
• https://github.com/apple/servicetalk/commit/4177cd171710f4bca66a3f97ab3809e85cf374b5 - Deprecate NettyServerContext.wrap(NettyServerContext, AsyncCloseable) (#3310)
• This is an internal API that is not used by ServiceTalk anymore and will be removed in future releases.
• Reminder: Users should not depend on any classes or interfaces from internal modules and packages.

New Features

• https://github.com/apple/servicetalk/commit/589063d73695e85847e05d1d92004eae0965a9a3 - gRPC protocol support in opentelemetry module (#3296)
• https://github.com/apple/servicetalk/commit/d941935a6c551dc31b135e92bd1f4a8ea7ed19c3 - Propagate HTTP/2 streamId to request context (#3311)
• https://github.com/apple/servicetalk/commit/79d3e8bb9080b2f20b595d9dc0b24eca11e9e03b - loadbalancer: support maintaining a minimum connection pool size per host (#3303)

Bug Fixes

• https://github.com/apple/servicetalk/commit/74d9321108abe792f3557980864119c753fac363 - traffic-resilience-http: Consider the request body for ticket lifetimes (#3305)
• https://github.com/apple/servicetalk/commit/045b7e9fad6dd1b912c8f551d7856c27468cf979 - opentelemetry-http: HttpAttributesGetter should always try to extract network attributes (#3315)
• https://github.com/apple/servicetalk/commit/923d66963e69b1f63aeb4234db91dad6c1db8475 - tcp-netty-internal: copy maps in copy contructors (#3320)

Improvements

• https://github.com/apple/servicetalk/commit/3a82fc60efba9d43b43e9698cc56e3057d4f73df - opentelemetry-http: refactors in preparation for grpc support (#3306)
• https://github.com/apple/servicetalk/commit/ae39a1e3311787de908e33d759dc7365ae1ac6b4 - grpc-utils: don't log null throwable (#3316)
• https://github.com/apple/servicetalk/commit/686607dc4ca72f6112d412e7e4470eea4994e00c - Don't apply SO_KEEPALIVE socket option for Unix Domain Sockets transport (#3307)
• https://github.com/apple/servicetalk/commit/3ec48fd31b637310f1ee7e470cb91a709dff7fee - loadbalancer: reduce unnecessary null validation (#3325)

Dependencies

• https://github.com/apple/servicetalk/commit/1debfdfbe9dffe9a6abbae893faabd548a68007e - Update Netty 4.1.123 -> 4.1.124 (#3322)

Documentation

• https://github.com/apple/servicetalk/commit/436db6dd028dc2ba5f6456443d2d4350344bc8fd - Improve javadoc for observers (#3304)
• https://github.com/apple/servicetalk/commit/2f4a7d826428b5055d7779a9a4e189c608d98a6b - Replace references to noOffloadsStrategy with offloadNone (#3314)

Thank you

Every idea, review, and bug-report counts and so we thought it is worth mentioning those who helped in this area. Please report any unintended omission.

@aleqi200 @bryce-anderson @daschl @eddie4941 @idelpivnitskiy @mgodave