When is Ruby 4.0 end of life?

Ruby 4.0 reaches end of life on Mar 31, 2029 (in 2 years). After that it gets no more updates, including security fixes.

What is the latest version of Ruby 4.0?

The latest Ruby 4.0 release is 4.0.7, released on Sep 14, 2026.

Ruby 4.0 was released on Dec 25, 2025.

Run ruby --version, then paste the result into the “Am I up to date?” box on this page.

Supported until Mar 31, 2029

4.0.7 Release notes ↗

Yes

Ruby 4.0 is supported until Mar 31, 2029 (in 2 years).

Supported Today What “supported” means

rbenv install 4.0.7
rbenv global 4.0.7

docker pull ruby:4.0

Official upgrade guide ↗ Back up first, and test on a non-production machine when you move to a new branch.

Is Ruby 4.0 still supported?: Yes. Ruby 4.0 is supported until Mar 31, 2029 (in 2 years).
When is Ruby 4.0 end of life?: Ruby 4.0 reaches end of life on Mar 31, 2029 (in 2 years). After that it gets no more updates, including security fixes.
What is the latest version of Ruby 4.0?: The latest Ruby 4.0 release is 4.0.7, released on Sep 14, 2026.
When was Ruby 4.0 released?: Ruby 4.0 was released on Dec 25, 2025.
How do I check which Ruby version I have?: Run ruby --version, then paste the result into the “Am I up to date?” box on this page.

Compare: 3.4 vs 4.0

Release dates for 8 Ruby 4.0 versions, newest first.

Badge for this branch (Markdown) Ruby end-of-life dates for your calendar