November 11th, 2025

Ruby Namespace will be renamed to Ruby::Box

The Ruby namespace will be renamed to `Ruby::Box`. A merge request regarding this was integrated into Ruby's master branch a couple of days ago by Satoshi Tagomori.

Screenshot of title for a Github PR that says Rename namespace to Ruby:Box — Source: https://github.com/ruby/ruby/pull/15075

The renaming discussion was initiated by Xavier Noria, who shared compelling reasons for reconsidering the name.S

Renaming proposal for Namespace — Source: https://bugs.ruby-lang.org/issues/21385

The accepted proposal, suggested by Satoshi Tagomori, was approved by Yukihiro Matsumoto:

The proposal for Tagomori about Ruby::Box — Source: https://bugs.ruby-lang.org/issues/21385\#note-25

But what is interesting is also that Matz hinted that this should be seen as a low-level API, with potential plans for a higher-level API in the future. This development is exciting as it could unlock new possibilities:

Matz saying "I consider this namespace thing as a low level API. And I have a plan to provide level higher level API in the future" — Source: https://bugs.ruby-lang.org/issues/21385\#note-12

You can find all these and a lot more inside the Short Ruby Newsletter