OSX Betas?

My Mac has been in the consumer OSX Beta program.

App Store is currently offering Public Beta 5 10.11.2.

Now that I am running Indigo I don't want beta builds coming every week.

But I don't want to get orphaned on Beta 5... (Last year I stepped out of the beta program, and was stuck on a particular beta build until I re-enrolled int he beta, upgraded to a newer beta, then upgraded to RTM).

What is the safest way to leave a Mac beta program these days, and still get RTM of 10.11.2 when it releases?

(I'm a Windows guy; just play around with the Mac until I found Indigo).