BcashJr Wallet is a self-custodial desktop wallet for Bitcoin and BTC-BLAKE, available for Windows, macOS and Linux. Split shared coins using SIGHASH_UNIFIED replay protection, then manage and spend each side independently.
This is new software. Create a fresh wallet, back up your recovery phrase, and test the complete flow with a small amount before proceeding with more funds.
Full Changelog: https://github.com/hsjoberg/bcashjr-wallet/commits/v0.0.1