Technology

Ethereum Delays Glamsterdam Testnet Fork Due to Gas Security Flaws

October 23, 2026, 11:49 AM UTC (1 hour ago) · 1 source · Summarized by CryptoBipto

The Ethereum development team has delayed the Glamsterdam testnet fork after discovering security flaws related to the gas mechanism. The delay is intended to allow developers to address the vulnerabilities before proceeding with further testing.

WHY IT MATTERS

Think of Ethereum upgrades like updating the operating system on your phone. Before the update goes live for everyone, developers test it in a controlled environment — that is what a testnet is. In this case, they found a problem with how 'gas' works. Gas is essentially the fee you pay to use the Ethereum network, similar to paying postage to send a letter. If there is a flaw in how gas is calculated or enforced, it could let bad actors exploit the system. Catching these problems during testing, rather than after the upgrade goes live, is exactly how the process is supposed to work, but it does mean the upgrade will take longer to arrive.

Ethereum's planned Glamsterdam upgrade has hit a setback after developers identified security issues in the gas-related components of the fork.

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SOURCES

decrypt.co

ETHEthereum UpgradesNetwork SecurityTestnetGas Mechanism

Learn the concepts behind this

Clear explanations of the subjects this article touches, with every term defined.

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