Sean Michael Kerner looks back at the major Linux releases of 2012 and the important new capabilities each added in a new LinuxPlanet article. It was a year of non-stop progress for Linux kernel developers, and in total, seven major Linux kernels were released during the year adding a long list of new features along the way, writes Kerner. From Linux 3.2, the first kernel of 2012 released in early January, to Linux 3.7 which debuted in early December, Kerner itemizes the key advances in each. Linux 3.3, released in March was notable for the return of Android, he writes, while KVM virtualization got a boost in May with Linux 3.4, which expanded the maximum number of virtual CPUs that can be supported in Linux. Read Kerner’s article, titled “The Linux Kernel in 2012,” here.