I came across an answer which suggest installing x tool which have a recently found a high priority security risk, so I edit it to add:
Update x ASAP: CVE-2021-nnnnn: High priority security vulnerability.
The user who answered the question revert the edit arguing:
I reverted your edit because security vulnerability info isn't really relevant to the question and somewhat ephemeral. Here's the link to the CVE alert that was removed: ubuntu.com/security/CVE-2021-nnnnn
Being ephemeral doesn't make it less important. You could leave the security alert as long as it's relevant. Software with high priority security risks are relevant in this context.
But I wonder what other people think. Should we add this (necessary ephemeral) security alerts on questions or answers in which the main subject is around a software with a high priority vulnerabilities?
Edit: It seems there is a consensus that it should have been a comment. There is any case where should be an edit? What if there isn't a release patch yet?