The new major version with a new JIT compiler, a revised parallelization API, and a maturing type system paves the way for the next decade. On December 21, 2025, the Ruby language turned 30 years old ...

Ruby Box is an experimental feature that provides separate spaces in a Ruby process to isolate application code, libraries, and monkey patches.

“Compiler #2” as it has been affectionately called is a compiler to turn normal Ruby classes into Java classes, so they can be constructed and called by normal Java code. When I asked for 1.3 ...