Ruby 3.4: Faster Connections, Cleaner Backtraces, and More Concise Code

Ruby 3.4 is here! Chris Sinjakli highlights three key improvements: a default block parameter name `it` for cleaner code; implementation of RFC8305 (Happy Eyeballs Version 2) for significantly improved TCP socket connection handling, especially in dual-stack (IPv4 and IPv6) networks; and clearer exception backtraces for easier debugging. These enhancements boost developer productivity and underscore the Ruby team's commitment to developer experience.