Months ago, some distributions accidentally removed cryfs and encfs from Vaults dependencies (temporarily). And some distributions are removing them intentionally from their package repositories (at least, for the time being).

It might be a good idea to switch your vaults to gocrtyptfs.

There is no automatic process for this, just create a new vault (it will be gocryptfs-based – other backends have been removed from the UI in the latest versions) and copy the data from the old one there.

Some context

To avoid users thinking there is something serious going on, this is some background on changes:

• Plasma Vault creation wizard supports only gocryptfs since plasma-vault/-/merge_requests/62 as it is the most maintained upstream project, and to avoid “confusing the users”.
• Some distro packagers thought this means Vault no longer supports cryfs and encfs and they removed them from the package dependencies. This change was quickly reverted as there are existing users that already have cryfs and encfs-based Vaults.
• Some distros are cleaning up FUSE2-based file systems and going FUSE3-only. Some of them ship a FUSE3-based CryFS, and some seem to be waiting for an official FUSE3-supporting release (see github.com/cryfs/cryfs/issues/419).

So, nothing important has happened. Your vaults are as safe as they always were.

It is just that it might bring you a headache if the backend you use for your vaults disappeared after you update your system.

And headaches for me when I get bug reports that Vaults no longer support encfs or cryfs :)