Apologies if this has already been addressed, but I have scrolled back through the tickets since December last year and I can't see the problem posted.
Whenever I check Extension Updates, I see the message (paraphrased): Admin Tools Professional package Installed 5.6.0 Available 5.6.0
If I check it and click Update, the updater does its thing and the message disappears. But it's back the next time I log into the Administrator.
I tried Install -> Upload Package File today, but the message didn't go away at all.
Other than the update message, Admin Tools is working well, so I've just been living with it. However, it is irritating, so I thought I ask you had any ideas how I can fix it?
Regards,
Robertf