lol like i said, steam keeps your game up to date for you. you dont need to get patches yourself like we used to in the bad old days. If you want in on the beta's here's what you do:
Go to your steam library. Right click Cold Waters. Click Properties. Click the BETAS tab. Select the beta you want from the tab. Ignore the access code box, just click OK. Off to the races!
It's all so easy these days