---
title: "Ethereum Foundation announces Glamsterdam upgrade scheduled for Hoodi testnet"
language: en
canonical: "https://whycoinmoves.com/en/events/ethereum-d567d644690346"
published: 2026-10-20T05:23:30.000Z
updated: 2026-10-20T07:45:11.000Z
indexable: true
---

# Ethereum Foundation announces Glamsterdam upgrade scheduled for Hoodi testnet

Attributed sources: [Ethereum 官方博客](<https://blog.ethereum.org/en/2026/10/16/glamsterdam-hoodi-announcement>)

## Key facts

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.

## Returns after site detection

| Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC+8) | Source |
| --- | --- | --- | --- | --- | --- |
| 5 minutes | — | — | — | — | — |
| 1 hour | -0.43% | -0.27% | -0.16 pp | 20/10/2026, 13:25 → 20/10/2026, 14:29 | OKX · USDT |
| 24 hours | — | — | — | — | — |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Ready | true |
| Coverage | 99.9% (719/720) |
| Median absolute hourly return | 0.19% |
| 99th percentile of absolute hourly returns | 1.46% |
| BTC beta | 1.12 |
| Source / cutoff (UTC+8) | OKX · USDT / 20/10/2026, 13:23 |

## Claims and open questions

- 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.
- 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.

## Source evidence

- [Glamsterdam Hoodi Testnet Announcement](<https://blog.ethereum.org/en/2026/10/16/glamsterdam-hoodi-announcement>) — Ethereum 官方博客; published 16/10/2026, 08:00; received 20/10/2026, 13:23 (UTC+8).


## Recent ETH events and market reactions

- [JPMorgan extends JPM Coin deposit token to Ethereum](<https://whycoinmoves.com/en/events/ethereum-207a9e516d6a04>)
- [Full coin archive](<https://whycoinmoves.com/en/coins/ethereum>)

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