Bummer. Had Rethink in my list of things to eventually tinker-with. Is it stable where it should still be considered as a viable choice for your tech stack, or is this pretty much a deal-breaker?
RethinkDB is production stable as shown by a number of users running it in production, this won't change that. I'm optimistic that it'll do just fine as an open-source project.
Jeroen / VeXocide here, one of the RethinkDB engineers
It is hard to tell. I am wondering the same thing after having massively invested in building code on top of RethinkDB. I am not optimistic at all. At a minimum I wish Slava had announced a plan to relicense under BSD or Apache. This is the moment when he could do it and he hasn't.
I actually maintain an app that uses a RethinkDB cluster that's been up for over a year (despite occasional peak loads that exceed capacity), so yeah it's pretty stable. I've had multiple virtual servers fail (this is all in a cloud) and have to be replaced in that time frame, but the cluster itself never went down.