Solana is slashing per-block compute limits so its new 350ms speed boost doesn’t overload the network

Solana's 350ms Mainnet target is set to take effect in epoch 1020, down from the current 400-millisecond target slot time. The feature activated at the start of epoch 1019, but a one-epoch delay means the network keeps its existing parameters until the next epoch. In practical terms, blocks get a shorter target production interval without receiving a larger compute allowance per second.The rollout is already further ahead elsewhere. Testnet is at an effective 200ms target, while Devnet is at 300ms and has activated its 250ms gate without making it effective yet. Solana's Aug. 6 changelog had listed only the 350ms step on the two test clusters, showing how quickly the later stages have advanced.Mainnet's 350ms feature account activated at slot 440,208,000, the first slot of epoch 1019. Under the delay in SIMD-0525, Mainnet stays at an effective 400ms target through that epoch and shifts to 350ms in epoch 1020.SIMD-0525 remains a draft. Feature activation shows that a specific cluster change is moving through the network, not that the full 200ms design has become an accepted final standard. The figures are also target timings, which are distinct from observed block production, confir...