---
title: "Solana’s Alpenglow, its biggest network overhaul since 2020, goes live Wednesday"
description: "2026-10-21にCoinDesk, Cointelegraph +1が報道。検知後24時間でSOL -0.51%。 CoinDesk: “Alpenglow will replace the voting system Solana has used since 2020, targeting roughly 150-millisecond finality after months of testing that included a failed migration and rollback.” 検知後24時間でSOLは-0.51%変動。価格観測は因果関係を証明しません。"
language: ja
canonical: "https://whycoinmoves.com/ja/events/solana-solana-s-alpenglow-its-biggest-3d4c4e70e1bc54"
published: 2026-10-21T04:38:04.000Z
updated: 2026-10-22T05:34:01.000Z
indexable: false
---

# Solana’s Alpenglow, its biggest network overhaul since 2020, goes live Wednesday

2026-10-21にCoinDesk, Cointelegraph +1が報道。検知後24時間でSOL -0.51%。 CoinDesk: “Alpenglow will replace the voting system Solana has used since 2020, targeting roughly 150-millisecond finality after months of testing that included a failed migration and rollback.” 検知後24時間でSOLは-0.51%変動。価格観測は因果関係を証明しません。

Attributed sources: [CoinDesk](<https://www.coindesk.com/tech/2026/10/21/solana-s-alpenglow-its-biggest-network-overhaul-since-2020-goes-live-wednesday>), [Cointelegraph](<https://cointelegraph.com/news/solanas-alpenglow-launches-mainnet-99-faster-finality>), [Decrypt](<https://decrypt.co/381484/solana-alpenglow-goes-live-in-most-ambitious-upgrade-since-ethereums-merge>)

## Key facts

CoinDesk: “Alpenglow will replace the voting system Solana has used since 2020, targeting roughly 150-millisecond finality after months of testing that included a failed migration and rollback.” 検知後24時間でSOLは-0.51%変動。価格観測は因果関係を証明しません。
Evidence strength: 複数メディア報道, 3 publisher group(s) (CoinDesk, Cointelegraph, Decrypt); this describes source coverage, not truth or causation.
検知後の観測リターン：5分: -0.14% (BTC比差 -0.04 pt; 21/10/2026, 04:38 → 21/10/2026, 04:43, UTC; Gate · USDT)；1時間: +0.09% (BTC比差 +0.09 pt; 21/10/2026, 04:38 → 21/10/2026, 05:38, UTC; Gate · USDT)；24時間: -0.51% (BTC比差 -0.41 pt; 21/10/2026, 04:38 → 22/10/2026, 04:38, UTC; Gate · USDT)。記載のない時間枠は未取得です。
直近30日間の時間足絶対リターンの99パーセンタイルは2.05%（OKX · USDT；基準 21/10/2026, 04:38, UTC）です。時間足基準は分単位の変動と直接比較できません。

## Returns after site detection

| Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source |
| --- | --- | --- | --- | --- | --- |
| 5分 | -0.14% | -0.10% | -0.04 pt | 21/10/2026, 04:38 → 21/10/2026, 04:43 | Gate · USDT |
| 1時間 | +0.09% | +0.01% | +0.09 pt | 21/10/2026, 04:38 → 21/10/2026, 05:38 | Gate · USDT |
| 24時間 | -0.51% | -0.10% | -0.41 pt | 21/10/2026, 04:38 → 22/10/2026, 04:38 | Gate · USDT |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Ready | true |
| Coverage | 100.0% (720/720) |
| Median absolute hourly return | 0.28% |
| 99th percentile of absolute hourly returns | 2.05% |
| BTC beta | 1.42 |
| Source / cutoff (UTC) | OKX · USDT / 21/10/2026, 04:38 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Solana’s Alpenglow, its biggest network overhaul since 2020, goes live Wednesday](<https://www.coindesk.com/tech/2026/10/21/solana-s-alpenglow-its-biggest-network-overhaul-since-2020-goes-live-wednesday>) — CoinDesk; published 21/10/2026, 04:35; received 21/10/2026, 04:38 (UTC).
- [Solana’s Alpenglow launches on mainnet, targets 99% faster finality](<https://cointelegraph.com/news/solanas-alpenglow-launches-mainnet-99-faster-finality>) — Cointelegraph; published 21/10/2026, 13:57; received 21/10/2026, 14:02 (UTC).
- [Solana Alpenglow Goes Live in 'Most Ambitious' Upgrade Since Ethereum's Merge](<https://decrypt.co/381484/solana-alpenglow-goes-live-in-most-ambitious-upgrade-since-ethereums-merge>) — Decrypt; published 21/10/2026, 14:24; received 21/10/2026, 14:27 (UTC).
- [Solana’s biggest network change since 2020 is live. Here’s how users benefit](<https://www.coindesk.com/tech/2026/10/22/solana-completes-alpenglow-upgrade-here-s-what-it-means-for-users>) — CoinDesk; published 22/10/2026, 05:24; received 22/10/2026, 05:29 (UTC).


## Recent SOL events and market reactions

- [SOLはなぜ5分で1.59%下落したのか？根拠・市場データ検証 · 2026-10-20](<https://whycoinmoves.com/ja/events/solana-move-1792509240>) — 受信 20/10/2026, 15:14 (UTC) · 原因未確定 · 価格急変動 · 5m -0.16% / 1h +0.64% / 24h +2.63%
- [Full coin archive](<https://whycoinmoves.com/ja/coins/solana>)

## Research for this archive

- [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns](<https://whycoinmoves.com/ja/research/hourly-returns-and-bitcoin-beta.md>)
- [Perpetual funding rates and annualized yield: a 2025 comparison](<https://whycoinmoves.com/ja/research/funding-rates-versus-investor-returns.md>)
- [Crypto listing and delisting effects: an OKX price study](<https://whycoinmoves.com/ja/research/exchange-listing-and-delisting-price-reactions.md>)
- [Do token unlocks lower prices? SUI, SOL and high FDV claims](<https://whycoinmoves.com/ja/research/token-unlocks-fdv-and-supply-schedule-claims.md>)

[Methods and limitations](<https://whycoinmoves.com/ja/methodology>)
Publisher count is not independent evidence count. Price changes cannot verify news or prove causation.