Ruby 2.5.9 Released

Ruby 2.5.9 has been released.

This release includes security fixes. Please check the topics below for details.

See the commit logs for details.

After this release, Ruby 2.5 reaches EOL. In other words, this is the last release of Ruby 2.5 series. We will not release Ruby 2.5.10 even if a security vulnerability is found. We recommend all Ruby 2.5 users to upgrade to Ruby 3.0, 2.7 or 2.6 immediately.

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Release Comment

Thanks to everyone who helped with this release, especially, to reporters of the vulnerability.