CodeIgniter 2.2.0 Released
CodeIgniter 2.2.0 has been released today, and is a security release for the 2.x branch. One of these changes is significant, so please be sure to read the version notes for upgrading from 2.1.4 to 2.2.0 to ensure your environment is ready for the update.
Since most have moved on to the development version of 3.0 from the GitHub repo, these fixes only affect sites powered by the legacy version. Sites running the development version of 3.x are unaffected as they have already been addressed in that version line. We felt that sites who were still running 2.x and potentially impacted by the vulnerability warranted an update so the release available for that version line is secure.