What happened
Ethereum postponed the Glamsterdam test in Hoodi after identifying a risk to smart contracts, according to the Ethereum Foundation Blog.
Why it matters
The issue was found before resuming testing and concerns the potential compatibility of the new gas rules with existing smart contracts.
Ethereum postponed the activation of the Glamsterdam upgrade in the Hoodi test network. The Ethereum Foundation Blog said that the launch scheduled for 26 October 2026 year has been postponed. CoinDesk ties the cancellation of Monday's Hoodi activation to a risk researchers identified in the new gas rules.
According to CoinDesk, such rules could allow smart contracts to permanently lock in failed operations. Cointelegraph, citing ChainSecurity, reported 13 real-world examples of contracts potentially affected by the gas changes; the piece also noted coordination of disclosure with affected projects.
The practical implication of the delay is to verify the upgrade's compatibility with existing contracts before continuing testing. The provided material consists of metadata descriptions of publications, not full texts or independent technical verification of details.
Confirmed facts
- Ethereum Foundation Blog reported the postponement of the Glamsterdam upgrade in the Hoodi network.
- The Glamsterdam launch in Hoodi was previously planned for 26 October 2026 17:42:48 UTC, on epoch 132 352.
- CoinDesk reported that Monday's Hoodi activation was cancelled after researchers identified a risk related to the new gas rules.
- CoinDesk described the risk as the possibility of permanently locking in failed operations by smart contracts.
- Cointelegraph reported that ChainSecurity identified 13 real-world examples of smart contracts potentially affected by the gas changes.
- The provided excerpts are metadata about sources, not full texts of publications.
Context
This concerns the Hoodi test network and the Glamsterdam upgrade; sources do not provide a new launch date.
What remains unknown
- Which specific mechanism of the new gas rules creates the risk of permanently locking in failed operations?
- Will Glamsterdam be reactivated in Hoodi, and when will this happen?
- Which 13 contracts and projects are potentially affected?
- Has the issue been independently verified by a technical review, not just publication metadata?
Editorial context
Confidence: medium
The likely near-term consequence is additional verification of gas rules and contract compatibility before resuming the test. The next observable signal will be an announcement of a new activation timeline or a technical fix. Substantial uncertainty remains: only metadata of publications is available, without a full technical description of the problem.