Coming from /e/OS ‘S’ e-1.10-s-20230413279105-dev-miatoll with e-Recovery v1.10, I did a simple manual upgrade via adb sideload e-1.16-t-20231022-UNOFFICIAL-miatoll.zip
Although in the updater settings recovery update was activated, e-recovery v1.10 remained after the T-upgrade, which did not cause any problems. Nevertheless, I manually installed e-recovery 1.16-t.
With the manual upgrade, all the apps I installed and my data remained intact. I haven’t done an intensive test yet, but clicking through various menus briefly, I didn’t notice anything out of the ordinary, except - that the @ronnz98 ROM runs very smoothly, inclusise Android security update October 6, 2023.
Thanks Ronald aka @ronnz98 for your very fast and unsurpassed ROM building service.