SteamOS is a Debian Linux kernel-based operating system in development by Valve Corporation designed to be the primary operating system for the Steam Machine game consoles. It was initially released on December 13, 2013, alongside the start of end-user beta testing of Steam Machines.
KDE Applications 14.12 has been released by its makers, and it’s a regular maintenance update. It comes with a ton of bug fixes and will be soon available in various repositories.
Understanding The Linux Kernel's BPF In-Kernel Virtual Machine
BPF continues marching forward as a universal, in-kernel virtual machine for the Linux kernel. The Berkeley Packet Filter was originally designed for network packet filtering but has since been extended as eBPF to support other non-network subsystems via the bpf syscall. Here's some more details on this in-kernel virtual machine.
Alexei Starovoitov presented at last month's Linux Foundation Collaboration Summit in Santa Rosa about BPF as an in-kernel virtual machine. The slides have been published for those wishing to learn more about its state and capabilities.
Calligra 2.9.0 is Out
Packages for the release of KDE's document suite Calligra 2.9 are available for Kubuntu 14.10. You can get it from the Kubuntu Backports PPA. They are also in our development version Vivid.