Hey man, I'm not seeing it in Labs. Make sure you have at least 1 build enabled (both 1.0 and 1.1 builds are disabled). Every time you release a new version, you just need to upload a new build and the backend will point users towards whatever is versioned the highest for whatever release channel they subscribe to (alpha/beta/release).
Hope that helps!
Correct, it was disabled. AGAIN.
I swear every time I do something in Labs it disables the latest build