Ethereum Foundation announces Glamsterdam upgrade scheduled for Hoodi testnet
The Ethereum Foundation said Glamsterdam, following its activation on the Sepolia testnet, is now scheduled for the Hoodi testnet. The upgrade includes enshrined proposer-builder separation, block-level access lists and changes to gas pricing intended to better reflect execution and state-growth costs.
Key facts
Attributed sources: Ethereum 官方博客
The Ethereum Foundation said Glamsterdam, following its activation on the Sepolia testnet, is now scheduled for the Hoodi testnet. The upgrade includes enshrined proposer-builder separation, block-level access lists and changes to gas pricing intended to better reflect execution and state-growth costs.
News evidence score: 70/100 from 1 publisher group(s) (Ethereum 官方博客); this measures source completeness, not truth or causation.
After site detection, observed returns were 1 hour: -0.43% (difference from BTC -0.16 pp; 20/10/2026, 13:25 → 20/10/2026, 14:29, UTC+8; OKX · USDT). Unlisted windows are unavailable.
In the preceding 30 days, the 99th percentile of absolute hourly returns was 1.46% (OKX · USDT; cutoff 20/10/2026, 13:23, UTC+8). This hourly baseline is not directly comparable with a minute move.
Protocol or product change · Rule-based triage; separate from truth and evidence scores.
Historical market context
Closed hourly candles from the 30 days before this event observation. Different venues are kept separate.
| Metric | Value |
|---|---|
| Hourly coverage | 99.9% (719/720) |
| Median absolute 1h return | 0.19% |
| 99th percentile of absolute 1h returns | 1.46% |
| Historical hourly BTC beta | 1.12 (718 matched returns) |
OKX · USDT · Context as of 20/10/2026, 13:23 · Last included candle closed 20/10/2026, 13:00
Historical hourly BTC beta 1.12 · 718 matched returns
These are hourly descriptive statistics. They are not minute-alert probabilities, truth scores or causal evidence. Backfilled history may arrive after the original event; the observation cutoff above stays fixed.
Claims and open questions
What sources claim
- The Ethereum Foundation's official blog states that Glamsterdam, after activation on Sepolia in October, is now scheduled for the Hoodi testnet.
- According to the official announcement, Glamsterdam advances Ethereum's layer-one scaling roadmap with enshrined proposer-builder separation, block-level access lists, and gas-pricing changes that better reflect the cost of execution and state growth.
Still unresolved
- The announcement does not give a specific activation date for Glamsterdam on Hoodi; an official schedule or client-release notice would confirm it.
- No mainnet activation date is provided; a subsequent official statement would be needed to confirm mainnet timing.
- Hoodi testnet outcomes, such as client readiness or any issues during activation, are not yet verified; client-team releases or an official post-upgrade statement would confirm them.
Model-assisted explanation; citations, numbers and output format are checked. This is not independent semantic verification.
Source evidence
blog.ethereum.org
Published 16/10/2026, 08:00 · Received 20/10/2026, 13:23
Publisher count is not independent evidence count. Original source titles remain in their source language. Full articles are not republished.
Market reaction after detection
Returns start at the first valid sample after site detection, using the same data source and quote currency. Missing observations remain blank.
| Window | Return | BTC | Difference from BTC (pp) | Actual sampled interval / source |
|---|---|---|---|---|
| 5 minutes | — | — | — | Awaiting a complete valid window |
| 1 hour | -0.43% | -0.27% | -0.16 pp | 20/10/2026, 13:25 → 20/10/2026, 14:29 (UTC+8) OKX · USDT |
| 24 hours | — | — | — | Awaiting a complete valid window |
Returns and BTC differences do not validate claims or establish causation.
Event timeline
Source publication, receipt and analysis times are separate. All times UTC+8.
Source published: Ethereum Blog
Source received: Ethereum Blog
Event first detected by this site
Evidence record updated
English explanation generated
Latest content update