Find date of upgrade from Mojave to Catalina I always update my 2017 Macbook pro as soon as an OS update comes out. I guess I learned my lesson of not installing the .0 version of any Mac OS update. I finally gave up on fixing various issues with Catalina and got a new loaner from my employer with Mojave on it. Now trying to copy data over to Mojave.

Is it possible to find the date when I upgraded my Macbook pro from Mojave to Catalina? I need to find the time machine backup that was from Mojave so I can restore from that TM backup. Maybe, there is a file somewhere in the filesystem which contains the name of the release?
These are the steps to follow:


Go to applications
Click utilities
Go to System Information
On the left scroll down to software 
Click system installations and sort by software name
Look for the update and when it was installed, an example as follows: