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Tech & Protocols · 1 min read

Geth Delays Amsterdam Hard Fork on Hoodi Testnet in v1.17.10 Release

Ethereum client developers postpone the scheduled Oct. 26 upgrade on the Hoodi test network, requiring node operators to patch.

Editorial oversight: Julian Mercer, Chief Editor
Neutral
$ETH $2,409 +0.4%

At a glance Announced

What happened
Go-Ethereum released client version 1.17.10 on Oct. 23, postponing the Amsterdam fork on the Hoodi testnet previously scheduled for Oct. 26.
Why it matters
The change prevents node divergence on Hoodi, while other Ethereum networks and forks remain unaffected.
Who is affected
Hoodi testnet node operators running Geth v1.17.9.
Takes effect
Oct. 26, 2026, 17:42:48 UTC
What's next
Ethereum client developers will schedule a new Hoodi Amsterdam fork date in an upcoming release.
Primary source
Geth releases: Soil Reducer (v1.17.10)

Key points

  • Geth v1.17.10 postpones the Amsterdam hard fork on the Hoodi testnet, previously set for Oct. 26, 2026, at 17:42:48 UTC.
  • Hoodi node operators running client v1.17.9 must update before the original Oct. 26 timestamp, while other networks are unaffected.
  • The release configures snap sync to switch to snap/2 automatically when Amsterdam goes live and optimizes EVM DUP/SWAP dispatch.

Ethereum execution client Go-Ethereum (Geth) deployed version 1.17.10 on Oct. 23 to postpone the Amsterdam hard fork on the Hoodi testnet 1. The upgrade had been targeted for activation on Oct. 26, 2026, at 17:42:48 UTC 1. Node operators running Geth v1.17.9 on Hoodi must upgrade to the latest client release prior to that timestamp to stay synchronized 1.

The development team confirmed that other networks remain unaffected by the delay 1. A revised activation date for the Amsterdam hard fork on Hoodi will be announced in a future software release 1. At the time of writing, Ethereum's native asset, $ETH, was trading at $2,401.

Client Optimizations and Sync Updates

Beyond calling off the testnet activation, Geth v1.17.10 introduces automated sync adjustments ahead of the Amsterdam hard fork 1. The client will now automatically transition snap sync to the snap/2 protocol once the Amsterdam upgrade activates 1. Node operators retain manual control over the feature through configuration flags --snap.v2=true or --snap.v2=false 1.

The patch also incorporates virtual machine execution enhancements, specifically optimizing DUP and SWAP dispatch within the EVM interpreter 1. Software updates have been distributed across Geth's standard packaging channels, including Docker images under the stable tag, Ubuntu Launchpad PPAs, Homebrew taps, and pre-built binaries 1.

Sources

  1. [1] Soil Reducer (v1.17.10) — Geth releases, October 23, 2026

Written by Basis Desk's newsroom system from the primary sources above and machine-verified against them before publication. Market figures marked "at the time of writing" come from live exchange data. Report an error: corrections@basisdesk.news · corrections policy.

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