Just to resurrect an old topic here… I found that if you are using
rclone sync
to send your backup to B2, you may want to also use the option:
--b2-hard-delete
Without this, even if you have “Keep only last version” set, when a file is deleted via the sync, a previous copy is kept. This may not be what you want.
If you have been doing this, check out:
for details.
I found this command was useful to clean up the old versions I had that I didn’t want:
rclone cleanup remote:bucket