Valve has released SteamOS but without the simple means to update the distribution. This has changed now with the launch of the “alchemist_beta” repository
Valve has now released a new repository called alchemist_beta that will allow users to keep their SteamOS system updated.
“SteamOS currently has two different repositories, ‘alchemist’ and ‘alchemist_beta.’ ‘alchemist_beta’ is a testing release where fixes and features will gradually accumulate on a daily or weekly basis,” says the official FAQ.
According to Valve, If you want to opt your machine into alchemist_beta, you can run this command from a terminal session on the desktop:
sudo apt-get install steamos-beta-repo
This means that the distribution will now take its updates from the Beta repository. Valve also posted the following warning:
“There is no easy way to opt out of the beta, you will need to either restore your system partition or wait for ‘alchemist’ to catch up to the alchemist_beta.”
Enjoy SteamOS!