I've been following a few projects' releases over RSS to determine see new releases and when to upgrade docker images I use locally.
For some software, it's not worth it to upgrade straightaway to a new release(eg on a new v13.0 release). I like to see if there are any new bugfix releases afterwards in the coming days or weeks.
On Github.com, a project/repo's releases RSS link follows this format:
Rss for tag feeds are at: