Solana Cuts Block Confirmation Times by 12.5% in Mainnet Upgrade

Solana's mainnet has successfully implemented its first staged slot-time reduction, cutting block confirmation times across the network. The change reduced the target from 400 milliseconds to 350 milliseconds after a feature gate activated at the start of epoch 1020.

The new timing applied when epoch 1020 began on August 21, and Trillium, a Solana validator-telemetry provider, measured a slot-weighted mean of 365.4ms across 431,505 timed slots in post-change epoch 1021.

Compared to pre-change epoch 1015, the lower post-change reading offers an early stability signal across those two epochs, though the comparison cannot establish that the timing cut caused the change.