November 13, 2026
Solana Alpenglow — anime alpine dawn with network aurora

Solana Alpenglow

Active · Beat: Node Zero · Last updated Oct 22, 2026, 2:36 a.m. PDT (Los Angeles)

First chapterLatest chapter

What’s new

~24h after the flip, Valid Blocks Alpenglow Explorer printed ~137 ms one-hour average finalization (current ~148 ms; hour band ~117–165 ms) near the 150 ms target; secondary wraps also cite a Foundation dashboard ~202 ms single reading (LN 10958). Snapshot math — not a multi-day SLA. No material halt/rollback primary in the incident window.

Timeline

  1. Oct 22, 2026Near-150ms finality prints a day after the flipValid Blocks ~137 ms 1h avg; Foundation dashboard ~202 ms single read cited.
  2. Oct 21, 2026Genesis cert live — TowerBFT retiresNon-null getAgGenesisCert; Anza/PR Newswire confirm mainnet flip.
  3. Oct 21, 2026Epoch 1064 live — genesis cert still null ahead of slot 459,653,000Activation epoch open; TowerBFT tail still running; flip not yet confirmed.
  4. Sep 28, 2026No Alpenrush — mainnet genesis cert still nullWattenhofer pushback + null RPC; Sep 28 ≠ Alpenglow mainnet flip.
  5. Sep 27, 2026Sep 28 begins feature activation on Anza’s scheduleBegin ≠ finished; October still in Foundation target language.
  6. Sep 26, 2026Alpenglow hits both public testnets150 ms finality target on testnet rails ahead of the mainnet gate.
  7. 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 whether finality averages stay near/under 150 ms across a full day (Valid Blocks + Foundation dashboard) and whether any material client incident lands.
  • Rotor / later Alpenglow follow-ons remain unscheduled.
  • Stop when sustained measured finality holds with no material incidents ~24h after the measurement chapter (flip already confirmed).

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