I’m also having a similar issue to this post.
https://www.mobileread.com/forums/sh...d.php?t=369093
I didn't want to hijack that thread as this might be something different.
Was at version 7.21.0 (never noticed that it was showing 7.9* bottom left corner) and installed the new 8.7.0 update and it goes through the install with no issues. System does ask to go into admin mode which I allowed.
After install, rebooted Win11 and ran Calibre and it continued to show 7.9* in bottom left corner and 'Update found' bottom right. (See attachments)
Went to the executable and opened up properties and it does shows 8.7.0. Checked to new features between 7.9 and 8.7, but other than new newsfeeds, didn’t see any changes.
I’ve tried uninstalling Calibre, reboot, install 7.26, reboot, run Calibre, but it still shows 7.9* bottom left. I updated to 8.7.0 with reboots and still shows the same.
I am not running any AV other than native Win11 (Security/Defender) as I don’t use this machine other than for Calibre.
How can I confirm that I do in fact have the right version install, is there a prominent feature I can find to verify. Why the 7.9* bottom left? And it continues to show 'Update found' bottom right (I had been ignoring until now)
Otherwise, Calibre runs just fine, with no issues with database, books, or plugins.