Ruby 3.1 changes - Ruby Changes

Released at: Dec 25, 2021 (NEWS.md file)Status (as of Jan 05, 2022): 3.1.0 is current stableThis document first published: Jan 5, 2022Last change to this document: Jan 05, 2022Note: As already explained in Introduction, this site is dedicated to changes in the language, not the implementation, therefore the list below lacks mentions of lots of important optimization introduced in 3.1, including a new JIT named YJIT. That’s not because they are not important, just because this site’s goals are different.