Solana's tentative Agave 4.2 rollout calls for mainnet feature activations to begin Aug. 17, including a 90% cut to refundable storage deposits, 4,096-byte transactions and 200-millisecond slots.
Stacks will activate its mandatory 4.0.1 hard fork at Bitcoin block 960,230 on July 29, bringing Clarity 6 and Bitcoin Stacking as exchanges prepare temporary STX transfer pauses.