Bugfixes

stdlib

• (runtime) Correctly transfer FD ownership in polling event loop (#15650, thanks @ysbaddaden)
• (runtime) Fix error message when PollDescriptor can't transfer fd (#15663, thanks @ysbaddaden)
• (runtime) Fix libgc pkg-config name for version discovery (#15636, thanks @straight-shoota)
• (serialization) [regression] Fix link bcrypt with libxml2 on Windows (#15651, thanks @straight-shoota)

compiler

• (cli) [regression] Fix crystal eval read from stdin (#15655, thanks @straight-shoota)

Documentation

stdlib

• (runtime) Enable docs for ExecutionContext (#15644, thanks @straight-shoota)
• (runtime) Fix mark method overrides on ExecutionContext as :nodoc: (#15659, thanks @ysbaddaden)
• (runtime) Update docs for Fiber::ExecutionContext.default_workers_count (#15664, thanks @ysbaddaden)
• (runtime) Enhance documentation for ExecutionContext (#15665, thanks @straight-shoota)

Infrastructure

• Changelog for 1.16.1 (#15666, thanks @straight-shoota)