/e/OS updates are not bothered if they ascend point updates or to a new whole number.
community build users should expect to do Android version upgrades manually. The official advice is to treat this as a new install because it is known to be a major amount of work to provide OTA Ugrade of Android version in official builds which expect to be performed error free and without loss of data.
With murenacloud plus seedvault plus one’s own backup of essentials then
- Fresh install or
- a dirty upgrade, [HOWTO] Upgrade my /e/OS to major Android version without loosing /data
just depends on user preference for a little risk or “Fresh and clean”.
Search the forum for other user stories fp4 for more reassurance for your phone.
Unknown till published, but maybe not.