>Believe the upstream. While in the nearest kernel, there is no sentence about >"under heavy development". Installer is just installer.
It doesn't matter if the latest stable Linux kernel has stable and mostly bug-free btrfs. The problem is, that the latest stable Linux kernel for the latest Debian Stable is way older. And btrfs from this particular version of Linux kernel seems to be very unreliable. So what this highly experimental AND dangerous software is doing in Debian Stable? I thought that such software is for Debian Testing and Debian Unstable, but not for Debian Stable.