Colin, one question: let's say I'm not paranoid about my backups' security. So I don't want to re-encrypt anything (even though it's only about 1GB). How does upgrade to 1.0.28 affect existing and new backups (and deduplication among those)?
Tarsnap 1.0.28 is completely compatible with earlier versions (except for key file format changes in 1.0.22). The only nontrivial change was to make new uploaded data get encrypted correctly.
