This release will activate the hardfork named FINALITY on TESTNET. It implements the VIP-220 Finality with One Bit (FOB) that allows nodes to be able to check the finality of blocks.
All TESTNET nodes are required to be upgraded ASAP.
The hardfork is scheduled at block #13086360 (~ Fri, 19 Aug 2022 08:00:00 GMT) on TESTNET.
New feature: you will be able to query finalized block via curl http://localhost:8669/blocks/finalized
Don't forget that full resynchronization is required if upgrading from versions earlier than v1.7.0.