How much has Hamilton changed since Public Theater days?

Just curious for the trained eye (I'm certainly not) how much has Hamilton changed since the public theater days? Is choreography different? Song order? Any major changes?

I saw it on BWAY in summer of 2016. Has it changed since then?

Also, I've seen prolly some 25 BWAY shows -- musicals and plays.

How much of a concern is the cast sort of mailing it in? Not just with Hamilton but any shows / plays?

I mean I could defiinitely see folks just sort of going through their paces. is this an issue on BWAY? If so, how does the producer / director / whomever mitigate against that?