Welcome to BTRFS documentation!
BTRFS is a modern copy on write (COW) filesystem for Linux aimed at implementing advanced features while also focusing on fault tolerance, repair and easy administration. You can read more about the features in the introduction or choose from the pages below. Documentation for for command line tools btrfs(8), mkfs.btrfs(8) and others is in the manual pages.
This documentation is still work in progress, not everything from the original wiki https://btrfs.wiki.kernel.org has been moved here. Below are starting points for missing contents.