This is how you revert safely to either 2.12a or 2.13

[Andrew]

To manually search for any title (but I did that for you below):
https://steamdb.info/

Archive either depo so you can easily revert at a later date.

You restore back to 2.12a
With browser
steam://nav/console

Console tab appears within steam.

First is the base game
Second is Phantom Liberty
On Console command enter:
download_depot 1091500 1091501 3807385820978085162
download_depot 2138330 2138330 5094071097429923087

Files appear in:
..\steam\steamapps\content\app_1091500\depot_1091501\
..\steam\steamapps\content\app_2138330\depot_2138330\

Dump contents into and overwrite/replace all:
..\steam\steamapps\common\cyberpunk 2077\

You restore back to 2.13
First is the base game
Second is Phantom Liberty
On Console command enter:
download_depot 1091500 1091501 4350623720177810551
download_depot 2138330 2138330 7007045647006068627

Files appear in:
..\steam\steamapps\content\app_1091500\depot_1091501\
..\steam\steamapps\content\app_2138330\depot_2138330\

Dump contents into and overwrite/replace all:
..\steam\steamapps\common\cyberpunk 2077\

Redmod was not updated.

[craigsters]

right click on the game in steam library, go down to properties and then beta opt into beta which has the previous game patch build

[Andrew]

Originally posted by craigsters:

right click on the game in steam library, go down to properties and then beta opt into beta which has the previous game patch build

I did not see that, it was just added but the depo download is better because you can make a new game directory with it and play on the older version while Steam Version is up-to-date.

Then you can continue to play on the older version while you wait for the mod framework to be updated.

I do this with with PL not installed on Steam Folder and full game with PL on a Depo Directory. Since I am an active modder for Cyberpunk 2077, I like to run my mods on the game in older versions and on the base game only to test compatibility.