It's required for 2FA (from bug 28786) but it's not added to koha-conf.xml when upgrading.
Confirming that this does not get added to the koha-conf.xml. For anyone looking for what to add it would be: <!-- Encryption key for crypted password or sensitive data --> <encryption_key>__ENCRYPTION_KEY__</encryption_key>
Yeah, this is an annoyance. The same problem exists for quite a few different koha-conf.xml options :/.
We could add something to the about page and future release notes here.
We need to script that add missing entries. It could be a simple (perl) misc script that is called at the end of the debian upgrade procedure.
I think a script like that would be great. Documentation would definitely help too, as the tags for wrapping the entry, or even the need for changing the config file at all, wasn't really in the release notes for the new feature (not that I saw, anyhow).
(In reply to Jonathan Druart from comment #4) > We need to script that add missing entries. It could be a simple (perl) misc > script that is called at the end of the debian upgrade procedure. I added a sample one on bug 28911 that I used as a once-off but it would need work to be used regularly like that.