Currently KBackup only supports the bzip2 compression format as far as I know. It would be nice to have support for xz, too, because of its higher compression ratio. See https://tukaani.org/xz/ for details.
Git commit 5f9ff2a24dfa581ed25a29b94f42695bced26c16 by Martin Koller. Committed on 29/07/2018 at 19:46. Pushed by mkoller into branch 'master'. Compress with xz instead of bzip2 when available M +24 -13 src/Archiver.cxx M +3 -1 src/Archiver.hxx https://commits.kde.org/kbackup/5f9ff2a24dfa581ed25a29b94f42695bced26c16