Overview
- The Solana network activated a 350‑millisecond slot target on Friday, Aug. 21, 2026, and network monitors showed average slot times near roughly 360ms immediately after the change.
- The change is the first stage of SIMD‑0525, a four‑step plan that next targets 300ms then 250ms and 200ms, with each cut requiring a separate feature activation before it goes live.
- All four stages are aimed to roll out through the Agave v4.2 validator client but remain tentatively scheduled and will be gated by epoch timing so the network can pause further cuts if block‑skip rates rise.
- Per‑slot compute limits will fall as slots shorten to prevent higher processing load, moving from a 60 million compute‑unit baseline toward about 52.5M at 350ms, 45M at 300ms, 37.5M at 250ms and roughly 30M at 200ms.
- The slot‑time reductions are part of a wider effort that includes the Alpenglow consensus work and new validator clients like Firedancer to cut latency, reduce single‑client concentration risk, and give validators and apps faster, more frequent confirmations.