Solana Activates 350ms Slots on Mainnet, First Cut Since Genesis

1. #0108.22
   Initial2026-08-22 · edition date

   Solana Activates 350ms Slots on Mainnet, First Cut Since Genesis

   Source evidence: The Defiant

2. #0210.09
   Escalation2026-10-09 04:52 · publication time

   Solana Schedules Final Cut to 200-Millisecond Slots

   Solana is scheduling its final cut to 200-millisecond slots, compensating with smaller per-block compute limits while validators face more frequent voting and shorter block-production windows.

   Source evidence: The Defiant

3. #0310.09
   Escalation2026-10-09 05:00 · publication time

   Solana is about to halve its block times as final 200-millisecond upgrade nears

   Solana has progressed beyond the 350ms cut to 300ms and 250ms, and is scheduled to make a final reduction to 200ms target block time at epoch 1053, completing the SIMD-0525 sequence of cuts from 400ms.

   State after update: Solana mainnet has completed 350ms, 300ms, and 250ms slot reductions and is scheduled to activate 200ms target block time at epoch 1053, with the final mainnet rollout still dependent on network conditions.

   Source evidence: CoinDesk

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