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SteamOS Now Based on Debian 8.8 with Linux 4.11, Uses Mesa Instead of AMDGPU-PRO

As expected, the SteamOS 2.115 update is based on the software repositories of the recently released Debian GNU/Linux 8.8 “Jessie” operating system, which means that it’s been patched with all the latest security fixes. Support for the Linux 4.11 kernel series is implemented as well in this new version of SteamOS, you should check out the release notes for details on all the updated components. Besides shipping with Linux kernel 4.11 and up-to-date packages from Debian GNU/Linux 8.8, SteamOS 2.115 switches to the open-source Mesa 3D Graphics Library for AMD Radeon GPUs. In other words, it drops the AMDGPU-PRO proprietary graphics driver from AMD. Additionally, it implements AMD Vulkan support, which works only if you’re using the Steam Beta Client.