If we go with PT12 do we surrender our PT10 license?

I haven't found any threads about this. I like that 10 works well on Maverick and Win 7, loads 32 bit plugs, and I can use 11 for projects that require quick bounces and updates.

I'm hoping that an upgrade to 12 that was already included in my PT 11 purchase won't wipe out my PT 10 license