Ruby 3.3.11 Released
Ruby 3.3.11 has been released. This release includes an update to the zlib gem addressing CVE-2026-27820 , along with some bug fixes. Please see the GitHub releases for further details. This is the last release of normal maintenance for the Ruby 3.3 series. After this release, Ruby 3.3 enters a security maintenance phase. During this phase, we will only backport security fixes and fixes for critical build issues, without any regular bug fixes. The security maintenance phase is scheduled to last for one year, until the end of March 2027. At that point, official support for Ruby 3.3 will end. We recommend that you begin planning your migration to Ruby 3.4 or 4.0. Download https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.tar.gz SIZE: 21483089 SHA1: 7f18e7e74ab64c5b159a8dfe8da3cc019b32bdb6 SHA256: 59f0fafb1a59a05dc3765117af3fa68e153eb48254708549f321c1e9e078d7a0 SHA512: effbcffce1cad4fa7158ce9159b6109a92e88c29f5d33151c2ec609c54fe24b747354b0e722e0fefe8164700acb2d650b8c65aad0e17e3dec2c26969a44fc524 https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.tar.xz SIZE: 15879844 SHA1: 520afae357283c96610f340c92a6567ff7b2b923 SHA256: 9116bb2e313203bd78cd3e8dc09284d34b2645f725877623a7185bf3807c8ca3 SHA512: 1f8eb206a90121015b294dada7ea61ebd136e7e7dbb1c4bb7df21b85f359a2e733f438153bf07c57815a963e4ef3f766081fd4226caa6547f4c263b33ed7726e https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.zip SIZE: 26947458 SHA1: e01bf3ff08d96438decc35b80d4d289b9d012681 SHA256: 94c9d920aade547bafe392c6a288f996c151cb217ab548be5747867353568243 SHA512: fc4d4299df8414daeb81ae329d67f4d0ea961443e3505407a4faa134d8b9971c49b5c6750d55b4fdc210e15276845ee9b11c4ee25461f99a743f714da7096391 Release Comment Many committers, developers, and users who provided bug reports helped us make this release. Thanks for their contributions. Posted by hsbt on 26 Mar 2026

Ruby 3.3.11 Released
The Ruby community has announced the release of Ruby 3.3.11, marking the final normal maintenance release for the Ruby 3.3 series. This version includes an update to the zlib gem that addresses the security vulnerability CVE-2026-27820, along with several bug fixes. The release notes are available on the GitHub repository, and users are encouraged to review them for detailed information.
This release is significant because it signifies the end of regular updates and improvements for Ruby 3.3. Starting from this point, Ruby 3.3 will enter a security maintenance phase, which will last for one year until the end of March 2027. During this period, the Ruby team will only backport critical security fixes and address essential build issues, without providing regular bug fixes. It is important for users to be aware that after March 2027, official support for Ruby 3.3 will be discontinued, and they should plan their migration to newer versions, such as Ruby 3.4 or Ruby 4.0.
The Ruby 3.3.11 release is available for download in three formats: a tarball, a tar.xz archive, and a zip file. The tarball can be found at [https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.tar.gz](https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.tar.gz), the tar.xz archive at [https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.tar.xz](https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.tar.xz), and the zip file at [https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.zip](https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.11.zip). Each file includes SHA-1, SHA-256, and SHA-512 checksums for verification purposes.
The Ruby development team would like to express their gratitude to all the committers, developers, and users who contributed bug reports and helped shape this release. Their efforts have been instrumental in ensuring the stability and security of the Ruby ecosystem.
As Ruby 3.3 enters its final phase of support, it is crucial for developers to consider upgrading their projects to more recent Ruby versions. Ruby 3.4 and Ruby 4.0 offer enhanced features, improved performance, and better security, making them suitable choices for modern applications. The Ruby community continues to evolve, and staying updated with the latest releases ensures that developers can leverage the latest advancements and maintain the security of their applications.
In conclusion, the Ruby 3.3.11 release is a critical milestone for users of the Ruby 3.3 series. It addresses a notable security vulnerability and includes bug fixes, but it also marks the beginning of the end for regular updates. Users are advised to plan their migration to newer Ruby versions to ensure continued support and access to new features and improvements. By staying informed about Ruby releases and updates, developers can ensure the longevity and security of their projects within the rapidly evolving Ruby ecosystem.










