# Ethereum Core Developers Postpone Glamsterdam Testnet Deployment Over Gas Accounting Flaws Source: TechNewsList (https://technewslist.com) Canonical URL: https://technewslist.com/en/article/ethereum-core-developers-postpone-glamsterdam-testnet-deploy-2026-10-23-morning Section: DeFi & Crypto (https://technewslist.com/en/defi-crypto) Author: TechNewsList Language: en Published: 2026-10-23T05:55:02.011+00:00 Updated: 2026-10-23T05:55:02.470185+00:00 > Ethereum core developers agree to delay the Glamsterdam testnet on Hoodi after security researchers at ChainSecurity discover critical gas-accounting edge cases in EIP-8037. ## TL;DR - Ethereum core developers postponed the Glamsterdam upgrade on the Hoodi testnet following findings by ChainSecurity. - Auditors identified 13 live smart contract patterns vulnerable to gas-replenishment anomalies under proposed EIP-8037 rules. - The vulnerability could alter error-handling execution paths in existing DeFi protocols, converting retryable transactions into state reverts. - Developers rolled back the target epoch configuration and paused the planned 200 million gas limit expansion pending contract testing. ## Key points - State-creation and state-access gas recalculations represent one of the most sensitive surfaces in the Ethereum Virtual Machine. - EIP-8037 aimed to optimize storage pricing but inadvertently created edge cases where available gas could be replenished mid-call. - DeFi liquidity pools and automated vault contracts rely heavily on deterministic revert semantics to protect user funds. - The All Core Devs Execution group chose protocol stability over schedule adherence, avoiding mainnet rollout risks. - A replacement testnet date and mainnet timing will be finalized once client implementation teams develop safe gas metering patches. ## What happened Ethereum core developers reached a unanimous decision during yesterday's All Core Devs Execution meeting to postpone the scheduled activation of the Glamsterdam protocol upgrade on the Hoodi testnet. Originally slated for launch on October 26, 2026, the testnet deployment was paused after prominent blockchain security research firm ChainSecurity presented findings uncovering critical gas-accounting vulnerabilities in proposed Ethereum Improvement Proposal 8037 (EIP-8037). The research identified thirteen distinct classes of existing mainnet smart contracts that would exhibit anomalous behavior under the new gas rules. In response, client development teams immediately removed the Glamsterdam activation parameters and rescinded the planned 200 million gas limit increase from client release branches, opting to keep the Hoodi test environment on the stable Dencun configuration while remediation proceeds across all major client software repositories. ## Why it matters Decentralized finance protocols secure tens of billions of dollars in digital asset value by relying upon the absolute determinism of Ethereum Virtual Machine execution semantics. Smart contracts governing decentralized exchanges, lending pools, algorithmic yield strategies, and liquid staking derivatives utilize precise gas calculations to handle error conditions, trigger fallback liquidation routines, and revert unsafe state transitions. If an underlying hard fork alters how gas is metered without preserving contract backward compatibility, operations designed to safely revert when conditions fail could instead consume unexpected gas allocations or execute unvalidated fallback branches. ChainSecurity's disclosure prevented potential systemic exploits that could have compromised automated market makers, collateralized debt positions, and cross-chain messaging bridges had the changes reached production networks unmitigated. ![Bitcoin Cryptographic Currency Asset](https://rkhynbcsbnkkcwgexzwg.supabase.co/storage/v1/object/public/media/api/1792734892545-to7ksb-ethereum-core-developers-postpone-glamsterdam-testnet-deploy-2026-10-23-morning-inside-1-828377592d.webp) *Symbolic representation of foundational cryptographic assets and decentralized virtual machine settlement layers.* ## Technical details At the center of the dispute is EIP-8037, an ambitious protocol modification intended to overhaul how the Ethereum Virtual Machine accounts for state creation and historical account access. Under current rules, warm and cold storage operations carry static gas penalties designed to deter state bloating and resource exhaustion attacks. EIP-8037 proposed a dynamic, tree-depth-adjusted gas schedule to better reflect physical hardware costs. However, ChainSecurity's audit proved that under specific reentrancy and memory-expansion sequences, the new formula could cause the EVM's remaining gas counter to recalculate improperly during nested sub-calls. In thirteen audited production contracts, this mathematical flaw resulted in gas replenishment, effectively giving failing execution frames additional computational budget rather than exhausting available gas. This behavior violated fundamental EVM containment invariants, enabling contracts with bounded gas limits to execute unauthorized child transactions or bypass security checks intended to enforce transaction termination upon receipt of malformed inputs. Client teams verified that the anomaly affected all execution clients uniformly. ## Market / industry impact The decentralized finance community reacted with relief to the developer consensus, viewing the delay as a demonstration of Ethereum's disciplined governance and rigorous testing culture. While a hard fork postponement inevitably delays throughput enhancements, market participants overwhelmingly prioritize settlement security and financial integrity over rapid feature deployment. The delay also highlights the growing technical complexity of coordinating upgrades across diverse client implementations including Geth, Nethermind, Besu, and Erigon. As layer-1 networks compete intensely on transaction throughput and finality speeds, maintaining rock-solid execution security remains Ethereum's primary competitive advantage among institutional investors, regulated custodians, and corporate treasury managers. ![Decentralized Computing Node Cluster](https://rkhynbcsbnkkcwgexzwg.supabase.co/storage/v1/object/public/media/api/1792734895102-1hy97q-ethereum-core-developers-postpone-glamsterdam-testnet-deploy-2026-10-23-morning-inside-2-1980396964.webp) *High-density distributed computing hardware processing blockchain transactions and smart contract execution.* ## What to watch next Ethereum client teams have scheduled a dedicated technical working group to rewrite the gas-metering specification over the next ten days. Developers will implement strict bounded constraints ensuring that state-access adjustments cannot artificially alter parent call frame balances or allow gas replenishment under any sequence of sub-calls. Following client-side patches, the Core Devs will deploy the revised gas logic to internal developer testnets before announcing a rescheduled Hoodi activation date. While this investigation likely pushes Ethereum's mainnet Glamsterdam rollout into the first quarter of 2027, the proactive intervention preserves the immutable security guarantees and architectural stability of the global DeFi ecosystem. ## Sources - [Ethereum Foundation ACDE Briefing](https://ethereum.org/en/developers/updates/2026/10/acde-glamsterdam-testnet-update/): Official summary of core developer consensus pausing the Hoodi testnet rollout of Glamsterdam. - [The Defiant Crypto Analysis](https://thedefiant.io/news/blockchains/ethereum-delays-glamsterdam-testnet-chainsecurity-warning/): In-depth technical coverage of the 13 smart contract vulnerability classes discovered by ChainSecurity. - [CryptoSlate Blockchain Research](https://cryptoslate.com/ethereum-hoodi-testnet-upgrade-paused-over-gas-recalculation-risks/): Detailed reporting on EIP-8037 gas-accounting changes and implications for Ethereum's late-2026 mainnet timeline. Mentions: Ethereum, Ethereum Foundation, ChainSecurity, Tim Beiko, EIP-8037 ## Sources - [Ethereum Foundation ACDE Briefing](https://ethereum.org/en/developers/updates/2026/10/acde-glamsterdam-testnet-update/) - [The Defiant Crypto Analysis](https://thedefiant.io/news/blockchains/ethereum-delays-glamsterdam-testnet-chainsecurity-warning/) - [CryptoSlate Blockchain Research](https://cryptoslate.com/ethereum-hoodi-testnet-upgrade-paused-over-gas-recalculation-risks/)