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[SITUATION] · [ACTIVE] · [TECHNOLOGY]

13 clusters · 52 sources · 82 days · First seen · Last updated

Ethereum Glamsterdam upgrade development

Overview

The Ethereum Foundation is progressing with the Glamsterdam upgrade, a major technical advancement combining the Amsterdam execution layer with the Gloas consensus layer to improve Layer 1 scaling and throughput. Scheduled for a target mainnet activation in Q4 2026, the upgrade introduces EIP-7732 (enshrined proposer-builder separation) and EIP-7928 (block-level access lists) to decouple block proposers from builders and enable parallelization of disk reads. To manage growing state size, the upgrade implements gas repricing via EIP-8037 and EIP-8038. These proposals aim to align costs with the actual computational resources required for state creation and access. While most transactions should remain unaffected, developers using hardcoded gas assumptions may face execution failures, necessitating updates to wallets and RPC infrastructure for accurate estimation. Following performance testing by Nethermind, the upgrade launched on the Sepolia testnet on October 6, 2026. During this rollout, developers resolved a configuration issue with the Prysm transaction verification software to manage an intended increase in the transaction processing group limit from 60 million to 200 million units. Developers previously scheduled the Glamsterdam upgrade to activate on the Hoodi testnet on October 26, 2026. However, during the ACDE #248 call, core developers postponed this activation due to security concerns raised by ChainSecurity regarding EIP-8037 and EIP-8038. Specifically, gas repricing could cause failed calls to behave differently, potentially turning retryable operations into permanent failures. ChainSecurity identified 13 real-world smart contracts that could be affected, particularly those relying on fixed-gas assumptions like the gasleft() function or a 2,300-gas stipend. Additionally, a deposit-handling vulnerability was identified by researcher avsetsin. The flaw could have allowed staking deposits intended for a new validator to be incorrectly credited to a block builder if both roles shared the same public key. Developers have since merged a fix for this vulnerability into the consensus specifications.

Entities

Ethereum Foundation · Ethereum · ChainSecurity · Sepolia · Protocol Watch

Claims

What the coverage asserts, and how many sources carry each claim.

Timeline

  1. [TECHNOLOGY] 5 sources
    Ethereum delays Glamsterdam upgrade due to smart contract risks

    Ethereum developers have delayed the Glamsterdam upgrade on the Hoodi testnet after security researchers identified eight smart contract risks related to proposed gas accounting changes.

  2. [TECHNOLOGY] 5 sources
    Ethereum developers fix Glamsterdam deposit-handling flaw

    Ethereum developers merged a fix for a Glamsterdam upgrade flaw that could have misdirected validator staking deposits to block builders.

  3. [TECHNOLOGY] 5 sources
    Ethereum developers postpone Glamsterdam testnet upgrade

    Ethereum developers have delayed the Glamsterdam upgrade on the Hoodi testnet to study how gas-repricing changes might break existing smart contracts.

  4. [TECHNOLOGY] 19 sources
    Ethereum postpones Glamsterdam upgrade on Hoodi testnet

    Ethereum developers have delayed the Glamsterdam upgrade on the Hoodi testnet due to security concerns regarding EIP-8037 and EIP-8038, which could impact existing smart contract error handling.

  5. [TECHNOLOGY] 4 sources
    Ethereum Glamsterdam upgrade scheduled for Hoodi testnet

    Ethereum's Glamsterdam upgrade is scheduled for the Hoodi testnet on October 26, introducing EIP-7732 and EIP-7928 to improve block production and parallel validation.

  6. [TECHNOLOGY] 5 sources
    Ethereum prepares Glamsterdam upgrade to boost network throughput

    Ethereum is advancing its scaling roadmap with the Glamsterdam upgrade, scheduled for the Hoodi testnet on October 26, 2026, to improve throughput and gas pricing efficiency.

  7. [TECHNOLOGY] 8 sources
    Ethereum launches Glamsterdam upgrade on Sepolia testnet

    Ethereum has launched the Glamsterdam upgrade on the Sepolia testnet to improve scalability through features like enshrined proposer-builder separation and increased processing capacity.

  8. [TECHNOLOGY] 2 sources
    Ethereum to launch Glamsterdam upgrade on Sepolia testnet

    Ethereum will launch the Glamsterdam upgrade on the Sepolia testnet on October 6th, aiming to improve transaction capacity, efficiency, and block production through the ePBS system.

  9. [TECHNOLOGY] 6 sources
    Ethereum announces Glamsterdam upgrade and testnet schedule

    Ethereum is preparing for the Glamsterdam upgrade, featuring proposer-builder separation and block-level access lists. A Sepolia testnet activation is scheduled for October 6, 2026.

  10. [TECHNOLOGY] 5 sources
    Ethereum advances Glamsterdam upgrade with successful performance tests

    Ethereum's Glamsterdam upgrade has passed key performance tests. The next phase involves a Sepolia testnet fork on October 6, despite developer warnings regarding potential fake builder attacks.

  11. [TECHNOLOGY] 3 sources
    Ethereum Glamsterdam upgrade introduces gas repricing

    Ethereum's Glamsterdam upgrade (Q4 2026) will implement gas repricing via EIP-8037 and EIP-8038, requiring developers to update smart contracts that rely on hardcoded gas assumptions.

  12. [TECHNOLOGY] 2 sources
    Ethereum launches Platåberget testnet for Glamsterdam upgrade

    Ethereum has launched the Platåberget testnet to prepare for the Glamsterdam upgrade, featuring EIP-7732 to separate proposer and builder roles and expand block validation windows.

  13. [TECHNOLOGY] 3 sources
    Ethereum launches Platåberget testnet for Glamsterdam upgrade

    Ethereum has launched the Platåberget testnet to allow developers to test the upcoming Glamsterdam upgrade, which introduces major changes to gas pricing, block construction, and contract sizes.

Sources

ambcrypto.com · bitcoinbasis.de · bitcoinbazis.hu · bitcoinethereumnews.com · bitcoinsistemi.com · blockchainseoul.kr · blockonomi.com · blocktempo.com · blog.ethereum.org · btc-pulse.com · btcnews.com · canceractive.com · coin-turk.com · coindoo.com · coingape.com · coinidol.com · coinpedia.org · cointelegraph.com · cointrust.com · crypto-insiders.nl · crypto-news-flash.com · crypto-times.jp · crypto.news · cryptoast.fr · cryptobreaking.com · cryptobriefing.com · cryptonomist.ch · cryptoslate.com · cryptoticker.io · en.bitcoinsistemi.com · ethnews.com · forexlive.com · insidebitcoins.com · intel.com · journalducoin.com · mactrast.com · merca2.es · mpost.io · neweconomy.jp · news.bitcoin.com · newsbit.nl · osnews.pl · rande-academy.cz · sondakika.com · spacemoney.com.br · techi.com · techreport.com · tokenpost.com

This summary has been updated 12 times: see revision history