Steam will stop running on MacOS 10,12, in 120 days This along with Apple crapping on their customers with IMacs vintage 2009

[sandcbroquard]

So now thanks to both Apple and Steam client I no longer will be able to utilize the games I have paid for in 120 days- I am really pissed at apple for cutting my IMac off newer versions of MAC os and will never buy a product with the apple brad! Is there a way to keep a steam client that will work on 10.12.6 wich will never get updated again?

[Homy]

Since you're running 10.12.6 you must have a late iMac 2009? Early and mid models could run 10.11.6 as the last OS. Your iMac then can be upgraded to 10.13 according to Eveymac: https://everymac.com/systems/apple/imac/specs/imac-core-2-duo-3.06-21-inch-aluminum-late-2009-specs.html

Here is another compatibility list:
https://www.macworld.com/article/673697/what-version-of-macos-can-my-mac-run.html

[cSg|mc-Hotsauce]

I warned you all...

https://steamcommunity.com/discussions/forum/2/3819656548993070720/