Tomb Raider has been updated to build 838 on PC today by Nixxes. You can find out the complete patch notes for this update from here.
The only thing that has been added in this patch is an offline mode. You can also opt-in with an Epic Account to use the multiplayer infrastructure if you decide to keep this option. Get the details on this update below, or have a look at the Steam forums.
Tomb Raider Update 838 Patch Notes
Fixes included in this patch
- Fixed a issues with offline mode
- Updates to multiplayer infrastructure to use Epic Online Services. Use of an Epic account is entirely optional.
Epic and Steam account linking and crossplay.
1) If you’ve never linked your Steam and Epic accounts, you can launch and play Tomb Raider through Steam just as you always could.
2) If you have previously linked your Steam and Epic accounts the game will not automatically use your linked account. If you wish make use of your linked accounts, please enable the feature from the options menu>>multiplayer.
3) You can unlink your Steam account via your Epic account settings, or disable the use of it from the in-game menu.