According to Lorenzo, the FIP-101 node upgrade for the Fractal Bitcoin network is set to activate at block height 1,500,000, introducing a new consensus mechanism and updated block reward distribution. The changes will align mining rewards among merged mining, permissionless mining, and indexing. While indexing block mining may not activate immediately, the upgrade ensures preparation for a standardized indexing system. Miners and node operators are encouraged to update to node version v0.3.0 to ensure smooth activation.