Release note:
Ruby 2.2.3 Released
Posted by nagachika on 18 Aug 2015
We are pleased to announce the release of Ruby 2.2.3. This is a TEENY
version release of the stable 2.2 series.
This release includes the security fix for a RubyGems domain name
verification vulnerability.
CVE-2015-3900 Request hijacking vulnerability in RubyGems 2.4.6 and earlier
There are also some bugfixes. See ChangeLog for details.