14 DAY TRIAL // Just a few hours ago, Valve pushed a new Beta update the SteamOS Brewmaster Beta (brewmaster_beta) channel, version 2.59, bringing support for new controllers, patching various security issues and updating the Bluetooth stack.
The SteamOS 2.0 Brewmaster Build 59 Beta was actually generated on January 6, 2016, but the official announcement and the ISO images were published on January 7, when Valve stated that it introduced "Additional game controller support in the linux kernel, an updated bluetooth stack and the usual security fixes."
Therefore, we can report today that the SteamOS Brewmaster 2.59 Beta operating system comes with updated kernel packages that add support for the Microsoft Xbox One Elite controller. However, SteamOS users who use the Beta channel and have an Xbox One Elite controller should be aware that only wired support is available, and that paddles are mapped to ABXY.
Security updates, Bluetooth improvements
In addition to the Microsoft Xbox One Elite controller support implemented in the Linux kernel and Linux Firmware packages, Valve also updated the Bluetooth stack in SteamOS 2.0 Brewmaster Build 59 by adding the Bluez 5.36-1 package and enabling the Bluetooth module in the PulseAudio sound server by default.
Furthermore, the steamos-autoupdate package was updated to no longer allow services to start during an unattended upgrade at shutdown. Various other pieces of software have been updated as well to their latest versions as of January 7, 2016, including Iceweasel, Git, Bind, Samba, CUPS Filters, LDB, and libxml2.
If you're on the SteamOS Brewmaster Beta channel, you can update to Build 59 right now, otherwise you can download the SteamOS Brewmaster 2.59 Beta ISO images from our website and attempt a fresh installation. However, please note that this is a pre-release version of the SteamOS Linux distribution and it's not suitable for deployment in production environments as it is considered unstable.