RT 5.0.5 is now available for general use. Our documentation site has notes on upgrading from earlier versions and detailed release notes.
In addition to a batch of updates, new features, and fixes, there are several important security updates provided in this release. Details on these fixes are in the release notes linked above. We recommend that all RT users upgrade to get these security updates.
Note that in addition to upgrading to this new version, access to the mail-gateway REST endpoint can, and in most cases should, be restricted to only the RT server itself (localhost). This access restriction can typically be applied in the web server running with your RT (Apache or other). This configuration is more clearly documented as part of this release and we recommend all RT admins review your web server configuration and consider restricting access to this mail-gateway REST endpoint.
https://download.bestpractical.com/pub/rt/release/rt-5.0.5.tar.gz
https://download.bestpractical.com/pub/rt/release/rt-5.0.5.tar.gz.asc
SHA-256 sums
90f845daaa436198c334b6e9cf5afb1df9f4445dcc165d0bcae35de9eb9be8ef rt-5.0.5.tar.gz
0c6f256434ae9d18e08e5267ae0dd6af817378c48a01e9bdc49a7cadbe43c47a rt-5.0.5.tar.gz.asc
Enjoy!