IMPORTANT: since consensus rules have changed, this version is not compatible with previous versions. If you've been running previous versions of the RSK client node, we encourage you to update to this new version. The Mainnet network upgrade will happen at block number 4,598,500. The Testnet network upgrade will happen at block number 3,103,000.
Please refer to RSKj HOP 4.0.0 release for details about changes included in this version.