--- title: "Ethereum developers postpone Glamsterdam upgrade on Hoodi testnet" description: "Core developers postponed the Glamsterdam upgrade on the Hoodi testnet, which Ethereum's blog says was scheduled for October 26, 2026 at 17:42:48 UTC (epoch 132,352), to allow further investigation of how EIP-8037 interacts with mainnet smart contracts. No new activation date has been set, and the…" language: en canonical: "https://whycoinmoves.com/en/events/ethereum-glamsterdam-hoodi-postponed-a213aec392a42f" published: 2026-10-22T17:46:58.000Z updated: 2026-10-22T18:47:31.000Z indexable: true --- # Ethereum developers postpone Glamsterdam upgrade on Hoodi testnet Core developers postponed the Glamsterdam upgrade on the Hoodi testnet, which Ethereum's blog says was scheduled for October 26, 2026 at 17:42:48 UTC (epoch 132,352), to allow further investigation of how EIP-8037 interacts with mainnet smart contracts. No new activation date has been set, and the… Attributed sources: [Ethereum Blog]() ## Key facts Core developers postponed the Glamsterdam upgrade on the Hoodi testnet, which Ethereum's blog says was scheduled for October 26, 2026 at 17:42:48 UTC (epoch 132,352), to allow further investigation of how EIP-8037 interacts with mainnet smart contracts. No new activation date has been set, and the blog says mainnet users and ETH holders need take no action. Evidence strength: Official source, 1 publisher group(s) (Ethereum Blog); this describes source coverage, not truth or causation. After site detection, observed returns were 5 minutes: -0.08% (difference from BTC -0.02 pp; 22/10/2026, 17:46 → 22/10/2026, 17:51, UTC; Gate · USDT); 1 hour: +0.06% (difference from BTC +0.01 pp; 22/10/2026, 17:46 → 22/10/2026, 18:47, UTC; Gate · USDT). Unlisted windows are unavailable. In the preceding 30 days, the 99th percentile of absolute hourly returns was 1.46% (OKX · USDT; cutoff 22/10/2026, 17:46, UTC). This hourly baseline is not directly comparable with a minute move. ## Returns after site detection | Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source | | --- | --- | --- | --- | --- | --- | | 5 minutes | -0.08% | -0.06% | -0.02 pp | 22/10/2026, 17:46 → 22/10/2026, 17:51 | Gate · USDT | | 1 hour | +0.06% | +0.05% | +0.01 pp | 22/10/2026, 17:46 → 22/10/2026, 18:47 | Gate · USDT | | 24 hours | — | — | — | — | — | ## Historical hourly baseline | Metric | Value | | --- | --- | | Ready | true | | Coverage | 100.0% (720/720) | | Median absolute hourly return | 0.19% | | 99th percentile of absolute hourly returns | 1.46% | | BTC beta | 1.18 | | Source / cutoff (UTC) | OKX · USDT / 22/10/2026, 17:46 | ## Claims and open questions - Ethereum's blog states that core developers decided at ACDE \#248 to delay the Glamsterdam upgrade on the Hoodi testnet, removing the scheduled Amsterdam execution layer and Gloas consensus layer activations. - According to the Ethereum blog, the postponement also removes the gas-limit schedule that would have raised Hoodi's gas limit to 200M at that epoch, and no replacement activation epoch or timestamp is in the updated configuration. - The Ethereum blog says the delay allows further investigation of EIP-8037's interactions with mainnet smart contracts, and that a revised Hoodi activation schedule will be announced separately. - When the rescheduled Glamsterdam activation on Hoodi will take place, given the blog says the date will be announced later. - What the developers' investigation of EIP-8037's interactions with mainnet smart contracts will find, as no findings have been published. ## Source evidence - [Glamsterdam on Hoodi Postponed]() — Ethereum Blog; published 22/10/2026, 00:00; received 22/10/2026, 17:46 (UTC). ## Recent ETH events and market reactions - [Drift exploit-linked wallets move Ether into Tornado Cash]() — Published 20/10/2026, 12:38 (UTC) · Multiple publishers (2 publishers) · Security · 5m +0.01% / 1h -0.15% / 24h +2.97% - [Bitmine adds 12,535 ETH, reaching 6.04 million tokens in treasury]() — Published 19/10/2026, 15:13 (UTC) · Multiple publishers (2 publishers) · General news · 1h -0.30% - [JPMorgan deploys JPM Coin deposit token on Ethereum mainnet]() — Published 19/10/2026, 17:31 (UTC) · Multiple publishers (4 publishers) · General news · 5m -0.03% / 1h -0.39% - [Ethereum postpones Glamsterdam activation on Hoodi testnet]() — Published 16/10/2026, 00:00 (UTC) · Official source (1 publisher) · Project updates · 1h -0.43% - [Full coin archive]() ## Research for this archive - [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns]() - [Perpetual funding rates and annualized yield: a 2025 comparison]() - [Crypto listing and delisting effects: an OKX price study]() - [XRP lawsuit and Ethereum ETFs: reading SEC filings and rulings]() [Methods and limitations]() Publisher count is not independent evidence count. Price changes cannot verify news or prove causation.