Changelog of new release:

• mkfs:
  • switch default to single profile for multi-device filesystem, up to now it was raid0 that may not be simple to convert to some other profile as raid0 needs a workspace on all device for that
  • new option -R for run-time options (eg. mount time enabled), now understands free-space-tree
• subvolume delete:
  • refuse to delete the default subvolume (kernel will not allow that but the error reason is not obvious)
  • warn on EPERM, eg. if send is on progress on the subvolume
• convert:
  • fix 32bit overflows on large filesystems
  • improved error handling and error messages
  • check free space taking fragmentation into account
• check:
  • detect and repair wrong inode generation
  • minor improvement in error reporting on roots
• libbtrfsutils: follow main package versioning (5.9)
  • add pkg-config file definitions
• python-btrfsutil: follow main package versioning (5.9)
• inspect tree-stats: print node counts for each level, fanout
• other:
  • docs:
  • remove obsolete mount options (alloc_start, subvolrootid)
  • deleting default subvolume is not permitted
  • updated or fixed tests
  • .editorconfig updates
  • move files to kernel-shared/
  • CI:
  • updated to use zstd 1.4.5
  • fix reiserfs build
  • more builds with asan, ubsan
  • sb-mod updates
  • build:
  • print .so versions of libraries in configure summary