Another example:
pamac update
Preparing...
Synchronizing package databases...
Refreshing core.db...
Refreshing extra.db...
Refreshing community.db...
Refreshing chaotic-aur.db...
Warning: linux515: downgrading from version 5.15.rc6.211018.g519d819-1 to version 5.15-1
Resolving dependencies...
Checking inter-conflicts...
To upgrade (5):
mpd 0.23.3-1 (0.23.2-1) extra 876.0 kB
openmpi 4.1.1-3 (4.1.1-2) extra 3.4 MB
python-gobject 3.42.0-1 (3.40.1-2) extra 257.6 kB
re2 1:20211101-1 (1:20210901-1) extra 178.3 kB
zenity 3.41.0-1 (3.32.0+55+gd7bedff-1) extra 3.1 MB
To downgrade (1):
linux515 5.15-1 (5.15.rc6.211018.g519d819-1) core 102.1 MB
Total download size: 110.0 MB
Total installed size: 5.4 MB
Apply transaction ? [y/N]
Upgrading from beta (rcX) to release version auto-interpreted as downgrade.