I’m currently experimenting with 3.3 on a staging machine and when I activated the new admin sidebar, I got this menu:
But, accessing Backups leads to:
This being a staging server, we had set enable_backups to false at some point, hence why we bumped into this bug. Setting it to true makes this work as expected. I suppose that menu entry may need to be conditional on that setting.
Having said that, the description for enable_backups currently is
Allow administrators to create backups of the forum
however, if it is set to false but automatic_backups_enabled is enabled, periodic backups continue to run (as I just found out..). So maybe enable_backups is about creating backups manually only?
In such case, perhaps /admin/backups section should always show to access any backups already done, and the “Backup” button in that page following the enable_backups setting.
PS: Shouldn’t the all admin settings be reachable even without the new admin sidebar? The custom moderation flags seem to not be anywhere under the usual settings (did I miss it?).