It's unlikely that you will choose a flux lib that will be the make or break point of your application.
Even if a library stops being "maintained", most decent flux incarnations are really small (~100 LoC) - it's unlikely that there's some fatal flaw you'll be stuck with.
In summary: redux is neat, but don't beat yourself up over choosing the perfect flux lib - just grab one that you like the look of and move on with building your application.
this is a great point. Also, since the overall architecture is going to be similar no matter which one you use, it's likely not going to be a major hassle to switch to a different one later.
It's unlikely that you will choose a flux lib that will be the make or break point of your application.
Even if a library stops being "maintained", most decent flux incarnations are really small (~100 LoC) - it's unlikely that there's some fatal flaw you'll be stuck with.
In summary: redux is neat, but don't beat yourself up over choosing the perfect flux lib - just grab one that you like the look of and move on with building your application.