I lost all of my configurations when upgrading my home Flint from 3.x to 4.x.
Prior to the upgrade I backed up my configuration from the luci console.
After the clean upgrade when I restored the router just would not open the wireless page without errors.
I eventually fixed that by reconfiguring everything, but all of the Wireguard server and client configs did not restore and neither did any of the DHCP reservations…
What a royal disappointing pain in the neck restoring all that, it took hours.
Is there a trick to this, how do you guys backup and restore when doing upgrades?
We made 3.216 to be compatible with the 3.X to 4.X upgrade, but there are still some configurations that cannot be saved, which is why we did not push the update notification.