Issue #21657 has been updated by ufuk (Ufuk Kayserilioglu). retro (Josef Šimánek) wrote in #note-17:
@mame so why to release 4.0 if not causing major breaking changes?
Quoting [my answer to this](https://bugs.ruby-lang.org/issues/21657#note-3) from above:
... that is completely a decision for @matz (Yukihiro Matsumoto) to make as he wishes. Ruby version numbers don't follow semantic versioning, so 4.0 doesn't mean that there will be breaking changes.
---------------------------------------- Misc #21657: Question: Is Ruby 4.0 planned for December 2025 or later? https://bugs.ruby-lang.org/issues/21657#change-115075 * Author: dmitry.pogrebnoy (Dmitry Pogrebnoy) * Status: Feedback ---------------------------------------- Hello Ruby core team, I noticed that the first preview of Ruby 3.5 has been released, and at the same time there’s some talk in the community about Ruby 4.0 potentially arriving in December 2025. Could you please clarify what the current roadmap looks like? Is Ruby 4.0 already planned for this December, or is the next stable release still Ruby 3.5? Having a clear, public roadmap would really help library and tooling authors (like IDE vendors) prepare for upcoming versions and provide better support. Thank you! -- https://bugs.ruby-lang.org/