How can I install the release version of Ubuntu 21.10 after I have installed the beta of 21.10

My impish development system through normal upgrades became a stable 21.10 system about two days before actual release.

This (name change) is one of the last changes made as the daily images became RC or release candidate status.

Nothing special is required; though you may need to sudo apt full-upgrade is all.

If you

lsb_release -a

or neofetch (if installed for your system as it is for some flavors like what I use) does it still say development ?

guiverc@d960-ubu2:~/uwn$   lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 21.10
Release:        21.10
Codename:       impish

I did nothing more than my normal full-upgrade.