Ethereum developers postponed the planned Glamsterdam activation on the Hoodi test network after security firm ChainSecurity found that gas changes in the upgrade could let some smart contracts permanently record failed operations that were designed to be retryable. ChainSecurity said it has already found 13 real-world examples and is working with affected projects through responsible disclosure, while the Ethereum Foundation assesses how many contracts are exposed. The Hoodi upgrade had been due to go live on Monday, and no new date has been set. Glamsterdam has already activated on the Sepolia test network on October 6, producing blocks with a gas limit of nearly 200 million, more than three times mainnet's 60 million.
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Related tickers and likely impact
ETH/USDT
▼ Likely negativeEthereum
Relevance: medium
| Market | Crypto |
|---|---|
| Exchange | Binance |
| Sector | Layer 1 |
| Market cap | $294.2B |
| Close on 10/22/2026 | 2,389.14 |
| Change that session | -3.42% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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