Concerns tied to EIP-8037 have pushed developers to delay Ethereum's next major network overhaul. Ethereum's Glamsterdam upgrade has been postponed after security researchers flagged 13 separ
Concerns tied to EIP-8037 have pushed developers to delay Ethereum's next major network overhaul.
Ethereum's Glamsterdam upgrade has been postponed after security researchers flagged 13 separate risks during pre-launch review. The concerns center on EIP-8037, one of the proposals bundled into the upgrade package. The Ethereum Foundation confirmed the delay this week, marking another pause in a development process that has already stretched longer than originally planned.
Glamsterdam is intended to be one of Ethereum's next major protocol upgrades, following the network's established pattern of combining multiple Ethereum Improvement Proposals, or EIPs, into a single coordinated release. These upgrades typically touch both the execution layer, which handles transaction processing, and the consensus layer, which governs how validators agree on the state of the chain. Because changes affect the entire network simultaneously, developers rely on extensive testing and external audits before any upgrade reaches mainnet.
The 13 risks identified ahead of Glamsterdam reportedly stem from issues connected to EIP-8037. Specific technical details of each risk have not been fully disclosed publicly, but the discovery was enough to trigger a formal postponement rather than a minor adjustment. In Ethereum's development culture, security findings of this scale typically require either reworking the proposal in question or removing it from the upgrade bundle entirely.
This is not the first time Ethereum's upgrade roadmap has slipped. Previous network updates, including Dencun and Pectra, also saw their timelines shift as developers addressed bugs or security gaps uncovered during testnet deployments. The pattern reflects a broader tension within Ethereum's governance process. Core developers must balance the pressure to ship new features against the risk of introducing vulnerabilities into a network securing hundreds of billions of dollars in value.
The Ethereum Foundation has not yet announced a revised timeline for Glamsterdam. Developers typically resume planning only after the underlying security questions are resolved and retested on public testnets. Until that happens, the upgrade remains in a holding pattern, with its original target window no longer considered reliable by those tracking the rollout.
For a network of Ethereum's size, this kind of caution is standard practice rather than an anomaly. Still, repeated delays can test the patience of developers, validators, and application teams who plan their own roadmaps around Ethereum's release schedule. Many protocols built on Ethereum design upgrades of their own to coincide with network-level changes, meaning a postponement can have knock-on effects beyond the core protocol itself.
Postponements of major Ethereum upgrades do not typically cause immediate price shocks, since markets have grown accustomed to shifting development timelines. However, repeated delays can affect sentiment among developers and institutional participants who track Ethereum's roadmap for planning purposes. Staking providers, layer-2 networks, and infrastructure firms that time their own releases around Ethereum upgrades may need to adjust their schedules accordingly.
The broader significance lies in confidence around Ethereum's development process rather than short-term trading activity. A transparent postponement driven by security findings is generally viewed as responsible engineering practice. At the same time, a pattern of delays can raise questions about Ethereum's ability to execute complex upgrades on predictable timelines, a factor some investors weigh when comparing Ethereum to competing smart contract platforms.
Ethereum's Glamsterdam upgrade now joins a list of protocol releases delayed in the name of security, with developers prioritizing a thorough review of EIP-8037 over a fixed deadline.
Glamsterdam is a planned Ethereum network upgrade that bundles multiple Ethereum Improvement Proposals affecting both the execution and consensus layers of the protocol.
The Ethereum Foundation postponed the upgrade after security reviewers identified 13 potential risks connected to EIP-8037, one of the proposals included in the release.
EIP-8037 is one of the technical proposals bundled into the Glamsterdam upgrade; it became the focus of the security concerns that led to the delay.
No new launch date has been set. The Ethereum Foundation has indicated the timeline will depend on resolving the flagged security issues and completing further testing.
Yes. Prior upgrades such as Dencun and Pectra also experienced timeline shifts as developers addressed bugs or security findings before deployment.
Update 23 Oct 2026, 05:18 UTC · added by Cointelegraph
The newer Cointelegraph reporting identifies the security reviewer as ChainSecurity, which found 13 real-world smart contracts potentially affected by Glamsterdam’s gas changes and is now coordinating responsible disclosure with the affected projects. It also specifies that the immediate postponement applies to the Glamsterdam hard fork’s launch on the Hoodi testnet.
Update 23 Oct 2026, 05:37 UTC · added by CoinGape
CoinGape specifies that the postponement applies to the Glamsterdam upgrade’s activation on the Hoodi testnet, with the previously planned October 26 launch now cancelled and no replacement date set. The outlet attributes the security findings to ChainSecurity, which flagged that EIP-8037’s gas repricing could break assumptions underlying some smart contracts, meaning node operators need to update their clients. CoinGape also notes that mainnet and ETH holders require no action at this stage.
Originally reported by AltcoinGordon, written by Sophia Bennett. Republished with permission.
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