Solana’s mainnet is producing blocks sooner after its first staged slot-time discount moved the community’s goal from 400 milliseconds to 350 milliseconds.
Quicker slots shorten block-level suggestions and affirmation thresholds measured in slots, whereas throughput will depend on a separate set of limits.
The Solana Basis confirmed the mainnet change after the characteristic gate activated at slot 440,208,000, the primary slot of epoch 1019. A characteristic gate is the change validators use to coordinate a protocol change, and underneath the one-epoch delay required by SIMD-0525, the brand new timing utilized when epoch 1020 started on Aug. 21.
A slot is the window during which a delegated validator can produce a block, whereas an epoch is a hard and fast interval of 432,000 slots.
Trillium, a Solana validator-telemetry supplier, measured a slot-weighted imply of 365.4ms throughout 431,505 timed slots in post-change epoch 1021. Its view of pre-change epoch 1015 recorded a 420.7ms imply.
The identical dataset recorded 331 skipped slots in epoch 1021, or 0.077%, in contrast with 1,890 skips and 0.438% in epoch 1015. The decrease post-change studying affords an early stability sign throughout these two epochs, although the comparability can’t set up that the timing lower precipitated the change.
What sooner slots change
Shortening the slot window reduces the wall-clock time for affirmation thresholds measured in slots. It additionally cuts the four-slot chief window from a nominal 1.6 seconds at 400ms to 1.4 seconds at 350ms, narrowing the interval one block producer controls.
The proposal retains 4 slots per chief and 432,000 slots per epoch. It scales per-slot compute, account-write, vote, information, and shred limits down with every shorter goal. Blocks arrive extra incessantly and carry smaller budgets, leaving approximate work capability per second broadly unchanged.
The 365.4ms telemetry studying measures noticed spacing between slots, and it additionally helps sooner block-level suggestions, whereas finality stays a separate metric.
Solana’s official improve roadmap requires distinct steps to 300ms, 250ms, and ultimately 200ms. Every characteristic gate carries a one-epoch delay so validators can apply the timing and decreased shred limits collectively.
The 300ms stage remained pending as of Aug. 26. Solana Compass reported that Anza CEO and SIMD creator Brennan Watt mentioned it was supposed to develop into efficient at epoch 1024, round Aug. 28.
Solana’s roadmap says the community can pause between phases if skipped-block charges climb, making the 350ms stage a dwell check of how a lot validator timing can tighten earlier than the trail to 200ms continues.


