1This document describes breaking changes between Qtum releases for both RPC APIs and for blockchain consensus. 2 3# Sparknet (Testnet v1) 4 5Initial release 6 7# TBD (Testnet v2) 8 9## Consensus Parameters/Rules 10 11## EVM Behavior 12 13* Made block.coinbase use block.vtx[1].vout[1] for the coinbase address of PoS blocks 14* Added check to coinbase to ensure that it is 0 if not a standard pubkeyhash address 15 16## RPC APIs 17 18