I just added 20,000 Beta Keys to the account website. If you haven’t got a beta key yet you should be able to log into the website and grab one.
I’m expecting that this should be enough keys for everyone - turning this into practically an open beta.
I’d like to see people moving over to Garry’s Mod 13 now, as I’m rounding off the edges and heading towards the actual release, I’d like to find any big problems sooner rather than later. So if you run a server please consider upgrading.
For more details, including how to report bugs, take a look at this.