Hey, does flytekit 1.16 work with flyte-binary 1.15.x?

Yes I think so, see https://flyte-org.slack.com/archives/C04NJPLRWUX/p1748962606172659?thread_ts=1748889363.059149&cid=C04NJPLRWUX

Gonna give your suggestion for the branchnode fix a try then.