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 blog says mainnet users and ETH holders need take no action.
Includes an official statement from the project or venue. Official claims are still not independent verification.
core coin ETH · official source
No time pressure
Three separate rule-based signals. None is the probability that the report is true. How they work →
Key facts
Attributed sources: Ethereum Blog
ETH after this site detected it
- 5 minutes-0.08%vs BTC -0.02 pp
- 1 hour+0.06%vs BTC +0.01 pp
- 24 hours—Window not complete
Claims and open questions
What sources claim
- 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.
Still unresolved
- 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.
Model-assisted explanation; citations, numbers and output format are checked. This is not independent semantic verification.
Source evidence
blog.ethereum.org
Published 22/10/2026, 00:00 · Received 22/10/2026, 17:46
Original source titles remain in their source language. Full articles are not republished.
Market reaction after detection
Returns start at the sample closest to site detection (within the same minute up to 10 minutes later), using the same data source and quote currency. Actual sample times are shown; missing observations remain blank.
| Window | Return | BTC | Difference from BTC (pp) | Actual sampled interval / source |
|---|---|---|---|---|
| 5 minutes | -0.08% | -0.06% | -0.02 pp | 22/10/2026, 17:46 → 22/10/2026, 17:51 (UTC) Gate · USDT |
| 1 hour | +0.06% | +0.05% | +0.01 pp | 22/10/2026, 17:46 → 22/10/2026, 18:47 (UTC) Gate · USDT |
| 24 hours | — | — | — | Awaiting a complete valid window |
Historical market context
Research: hourly returns and BTC beta →
Closed hourly candles from the 30 days before this event observation. Different venues are kept separate.
| Metric | Value |
|---|---|
| Hourly coverage | 100.0% (720/720) |
| Median absolute 1h return | 0.19% |
| 99th percentile of absolute 1h returns | 1.46% |
| Historical hourly BTC beta | 1.18 (719 matched returns) |
OKX · USDT · Context as of 22/10/2026, 17:46 · Last included candle closed 22/10/2026, 17:00
Hourly descriptive statistics, not minute-move probabilities. Backfilled history never moves the observation cutoff above.
Event timeline
Source publication, receipt and analysis times are separate. All times UTC.
Source published: Ethereum Blog
Source received: Ethereum Blog
Event first detected by this site
Evidence record updated
English explanation generated
Latest content update
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