Valve pushed down the SteamOS update 123 to their Alchemist Beta channel this week.
Besides pulling in updated upstream packages from the Debian 7.6 base, there's a fix for situations where applying updates would require multiple reboots. Additionally, the SteamOS Compositor has been fixed for addressing corruption on the first time a overlay or notification is rendered to the screen. Most of the package updates in alchemist_beta 123 involve security fixes and/or minor upstream package updates.
When it comes to gaming, Linux has taken major steps forward. What once was a deserted island for gamers has now become a growing arena for both gaming fans as well as game developers. With each passing week, we see more and more gaming franchises debuting on this platform. Thanks to the massive investment of Steam in Linux, you can now have a full-fledged gaming experience without booting up your Windows installation.