The migration, upgrade from iodéOS 1.2 (Android 10) to iodéOS 2.0 (Android 11) via OTA update with the ‘Updater’ happened without incident. Among other things, the new email app is now integrated. Bravo! Great! Thank you, iodè-Team!
A new manual update check is displayed as failed. Comparison here as well: Sony Xperia XZ3.