Ruby 3.4 released

Continuing its tradition of yearly major releases on December 25, the Ruby programming-language project
has released
Ruby 3.4.0 (followed quickly by 3.4.1,
which simply updates the version number). Ruby 3.4 includes lots of
changes, including the addition of it as a
less-confusing shorthand for _1 as a block parameter, switching to
Prism as the default
parser, adding the Happy Eyeballs
version 2 algorithm to the socket library,
just-in-time (JIT) compiler (YJIT) improvements, garbage-collection
modularization, and more.