This release contains a couple patches to remain in consensus with the Bitcoin Cash network. It is strongly recommended you upgrade as soon as possible to avoid falling out of consensus.
There was a last minute update the May 2019 hardfork spec to fix an edge case in the segwit recovery. This release updates bchd to be compatible with the most recent spec.
The Last Will contract exposed another bug. This time in OP_NUM2BIN. Thus far the opcode hasn't been used on the main chain in a way that causes a consensus failure, but the potential is out there for nodes still using prior versions of bchd.
invalidateblockRPC has been added (@zquestz).