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Version Released Security Support Release
6.0 1 year ago
(25 Aug 2019)
Yes 6.0.3.2
5.2 2 years and 5 months ago
(09 Apr 2018)
Yes 5.2.4.3
5.1 3 years and 5 months ago
(27 Apr 2017)
Ended 1 year ago
(25 Aug 2019)
NA
5.0 4 years ago
(30 Jun 2016)
Ended 2 years and 5 months ago
(09 Apr 2018)
NA
4.2 5 years and 9 months ago
(20 Dec 2014)
Ended 3 years and 5 months ago
(27 Apr 2017)
NA

Only the latest Rails version gets bug fixes, and the version before that gets security fixes. Severe security issues (as judged by the core team) are backported further; e.g., v4.2.11.1 and v5.0.7.2 are severe security fixes that were created after v4.2 and v5.0 were no longer receiving (non-severe) security updates.

A complete list of historic versions is available on RubyGems. New releases are published on the Rails blog.

More information is available on the Rails website.

You should be running one of the supported release numbers listed above in the rightmost column.


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