Version 2.4.17, problem with unsubscribe link? (General)
From which version did you start the update? Unsubscribing was introduced with 2.4.14.
I think 2.4.8
Can you please check, if you uploaded the templateposting_unsubscribe.inc.tpl
.I forgot to add it to the list of files to update.
No I did not upload that file as it was not listed.