September 28, 2026
Solana Alpenglow — anime alpine dawn with network aurora

Solana Alpenglow

Active · Beat: Node Zero · Last updated Sep 28, 2026, 4:27 a.m. PDT (Los Angeles)

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What’s new

Mainnet still returns a null getAgGenesisCert on Sep 28 — Alpenglow did not cut over. Anza research head Roger Wattenhofer said “there is no Alpenrush”; Yakovenko replied “decel” (LN 9912). Agave’s Sep 28 window remains feature-activation resume, not a labeled Alpenglow launch.

Timeline

  1. Sep 28, 2026No Alpenrush — mainnet genesis cert still nullWattenhofer pushback + null RPC; Sep 28 ≠ Alpenglow mainnet flip.
  2. Sep 27, 2026Sep 28 begins feature activation on Anza’s scheduleBegin ≠ finished; October still in Foundation target language.
  3. Sep 26, 2026Alpenglow hits both public testnets150 ms finality target on testnet rails ahead of the mainnet gate.
  4. Sep 21, 2026Agave 4.3 general adoption dayStake-quality checkpoint one week before the Sep 28 activation window.

What’s next

  • Explainer: What Alpenglow actually changes — finality, genesis cert, and rumor days in plain English.
  • Watch for a non-null mainnet getAgGenesisCert / Alpenglow genesis certificate — that is the real flip signal.
  • Client readiness: Agave 4.3 path vs Firedancer/Frankendancer support gaps.
  • Stop when activation is confirmed with no material incidents for ~24h.

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