I have just posted an announcement about this. It is a feature to delete older backups automatically in a way that you keep less backups the older they get.
I’ve used retention policy - to be more clear, my question was about what is meant by “simple UI for exposing…”, as I still only see it as an advanced option with a single line text box.
Ok, I see the answer to my question now: there are now new options inside the “backup retention” dropdown in the options screen. I hadn’t checked there, sorry.
I understand. I have just written an announcement about this and pointed out that we introduced a “smart backup retention policy” that is a bit more that just deleting old backups after a specific time or number of backups.
As I mentioned in my comment above, it is now a new option within the “Backup Retention” dropdown, which is in the “Options” tab of the backup configuration wizard.
Well, I dont have a “backup retention” option available at. Only “Keep this number of backups” below “Upload volume size” in the “Options” tab of the backup configuration wizard.