.. _upstream: ======== Upstream ======== Maintained by Linus Torvalds. See `kernel.org`_ for current mainline and stable releases. .. _kernel.org: https://kernel.org/ Repository and Branches ======================= https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ master ------ Linus' master, the upstream, or mainline. This is where all features from all subsystems, including DRM, are merged. The upstream follows a single branch, time-based development model, with a new kernel release occurring roughly every 10 weeks. New features are merged from subsystem trees during the two week merge window immediately following a kernel release. After the merge window, the new development kernel is stabilized by only merging fixes until the next kernel release. During development, there's a new release candidate (-rc) kernel each week.