30 December 2016
Contao version 3.5.21 is now available.
Upgrading to Contao 3.5.21
Contao 3.5.21 can be upgraded to (or installed) using any of Installatron's products. Use Installatron's optional Automatic Update feature to automatically apply Contao updates as new versions are released, or use Installatron's Clone feature to duplicate an existing Contao install to test the 3.5.21 upgrade prior to applying it live. Get started managing your Contao installations with Installatron
What's New in Contao 3.5.21
This bugfix release fixes the security vulnerability CVE-2016-10074, which was found in SwiftMailer, a third-party software we are using in Contao.