Here is an example how to create the major release 21.02.
First create the release branch on
append the branch as ;21.02. E.g. src-git packages https://git.openwrt.org/feed/packages.git;openwrt-21.02
VERSION_NUMBER = 21.02-SNAPSHOT VERSION_REPO = "http://downloads.openwrt.org/releases/21.02-SNAPSHOT"
VERSION_REPO: default: http://downloads.openwrt.org/releases/21.02-SNAPSHOT
TODO: put this patching step into maketag.sh (https://github.com/KanjiMonster/maintainer-tools)