When a new version of a plug-in is available calibre shows a message in the status line.
But there is nothing to inform one that a plug-in has been deprecated. If left installed a deprecated plug-in can cause calibre to malfunction. See this thread -
https://www.mobileread.com/forums/sho...d.php?t=236002
Could the function that checks for new versions of installed plug-ins also check to see if any installed plug-ins have been deprecated, and if there are any then put a message in the status line. See attachment for how it might look.
I installed the now deprecated Kindle Collections plug-in to ensure it wasn't already being done.
BR