An update has been released for Portal 2. - Fixed a potential RCE exploit when processing voice data. Reported via HackerOne. - Fixed some controller input bugs in authoring tools. - Updated localization strings.

An update has been released for Portal 2 Windows - Fixed an issue where in-game audio caption language would use the system language setting instead of the Steam language setting. Controller support - Improved camera control through Steam Input – the sensitivity scale has changed so you may need to increase your configuration’s sensitivity. - Add local coop support for one controller player and one Mouse/Keyboard player. - Add local coop support from the community coop map queue. Quickplay is still not supported. - Fix XInput related options being hidden when connecting a Steam Input enabled controller using a Gamepad configuration. - Fix the challenge mode screen not having enough footer buttons available through Steam Input. - Fix several more bugs where the incorrect action set could be set in Steam Input. - Fix several cases where having a controller connected but not active would affect the glyphs and settings screen options.

An update has been released for Portal 2. - Fixed a write path issue preventing maps from compiling.

An update has been released for Portal 2. - Added support for device specific glyphs from Steam Input API for PlayStation and Switch Pro Controllers. - Added digital navigation to the community test chamber browser and workshop map voting screens for Steam Input API and XInput controllers. - Fixed several state transitions where the user could get stuck and require mouse or keyboard to clear it. - Fixed a case that could leave XInput controllers without control of the camera. - Fixed a material rendering issue on Linux and OSX. - Fixed several potential exploits reported via HackerOne.

An update has been released for Portal 2 - Fixed possible remote code execution exploits. - Fixed potential buffer overflow in closed captions. Reported via HackerOne.

An update has been released for Portal 2. - Fix for a potential remote code execution exploit. Thanks to HackerOne for the report.

An update has been released for Portal 2 - Added HUD hint support for Steam Input types other than the Steam Controller.

An update has been released for Portal 2. - Fixed crashes on multi-core and multi-CPU systems that can allocate more than 32 threads.

An update has been released for Portal 2. - Security and exploit fixes. Reported in part by Justin G. (sigsegv) and Linus S. (PistonMiner).

An update has been released for Portal 2 and Portal 2 Authoring Tools. - Updated to latest Steamworks SDK to fix the map publishing tool.