As I was tumbling deeper into the rabbit hole of patch management for XWiki, I found myself wondering how to determine if a branch has reached it’s end of life.
13.10.x
The last release notes for XWiki 13.10.11 state:
This is a bugfix release and the last release of the 13.10.x branch (since the 14.10.x branch is now the new LTS branch)
This confirms that 13.10.x has reached its EOL.
15.10.x and 16.10.x
According to the Versioning & Release Practices, 15.10.x and 16.10.x are the last and current LTS branches, meaning they should still be supported and not yet at their EOL.
14.10.x
But what about 14.10.x? The release notes for the last release, XWiki 14.10.21, state:
This is a bug fix release.
However, given that 14.10.21 has several critical vulnerabilities, will there be another release for the 14.10.x branch? Or is 14.10.21 already the final release for this branch, similar to how 13.10.11 was for 13.10.x, but without being explicitly marked as the last release? 
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