How do you revert back to a previous version of Lightroom?

I have previously had no issue downloading lightroom on my Mac using the three dots in the CC desktop app and selecting "older versions" as instructed here, however now I no longer have the three dots and it just says "system incompatible." I am still able to access older versions of photoshop and other programs, but can't figure out a way to get Lightroom back on my computer, and I'm at my wits end after wasting many, many hours fighting with this system. Hope someone can help. 

I am a bit late the revert to downrev thread, this being Feb '24.  However, I wanted to add my two cents.  I was all good with updates in LRc until earlier this month.  The move to 13.0.1.2 (or there abouts) really impacted LRc speed.  I have a Nvidia GTX745 & 32GB RAM..  Granted, my PC is a bit outdated, but if it ain't broke...$$$  I reverted to 12.5 and my graphics processing has improved, not to what is was, but liveable (haven't rebooted yet).  NOTE:  reverting to 12 from 13 resulted in losing to access to pics processed in catalog13--the revert forced me back to a pre 13 catalog.  This means edits made after upgrading to 13 are likely going to require re-do.  So everthing since October in my case.  Guess I will live in v12.5 until $3K available for a new PC with updated Nvidia graphics card.

You know you don't need to roll back to use the older noise reduction sliders...? Just click on Manual Noise Reduction to see them.

Hi @SnydersPhotography 

Thanks for reaching out. 

To revert to the previous version, you must go to the Creative Cloud Desktop application. Then click the three dots beside Lightroom. You will get the option 'Other Versions'; click it.

Choose and install the version of your choice.

Let us know if it helps,

Best

Ranjisha