Ethereum developers have postponed the Glamsterdam upgrade on the Hoodi testnet after auditors found smart contract risks tied to two new gas rules. The delay shows core developers choosing safety over speed, a signal builders and holders should watch closely.
What actually happened
Audit firm Chainsecurity identified several projects that would break after Glamsterdam activates, because they rely on invariants altered by EIP-8037 and EIP-8038. Both proposals rework how gas is charged for certain operations and for state access, according to the Ethereum Foundation blog. Developers are now investigating eight separate smart contract invariants before forking Hoodi, Cointelegraph reported. Separately, Base activated its fourth network upgrade, Denim, on 5 November 2026, moving to five canonical blocks per second at 200ms intervals and replacing its earlier Flashblocks system. Ethereum co-founder Vitalik Buterin said the industry's top priority for the next two years is survival, not competition, pointing to recent security incidents at major exchanges. ETH traded at $2,223 at the time of writing, a change of -2.43% over 24 hours, after swinging between a high of $2,281 and a low of $2,209. Trading volume reached $15.30 billion, with a market capitalisation of $271.59 billion.
How we got here
Glamsterdam's gas-metering changes follow a tense month for Ethereum-adjacent security. In October, attackers behind Binance's $6.34 billion (USD) breach used Ethereum's EIP-7702 account-abstraction mechanism to delegate wallet permissions to malicious contracts, a tactic Binance said it could not instantly halt by pausing withdrawals, per Wu Blockchain. That incident, alongside a broader market selloff triggered by the US midterm elections, pushed Vitalik Buterin to call for stricter defenses across exchanges and custodians. Against that backdrop, catching invariant-breaking bugs before mainnet, rather than after, has become the default posture for core developers.
Why this matters for you
For builders, the delay means more time to test contracts against Glamsterdam's new gas-charging rules before mainnet activation, reducing the chance of silent failures. For L2 teams, Base's Denim upgrade shows faster block times are already shipping independently of Ethereum's own mainnet timeline, narrowing the user-experience gap with centralized apps. For ETH holders, today's price move looks tied to broader market jitters rather than protocol news, since ETH fell alongside wider crypto and equity markets this week. Nothing in the Glamsterdam delay changes Ethereum's existing security assumptions, but it does push back one possible source of near-term network risk.
The bigger question
How much delay should a blockchain accept before shipping a technically ready upgrade, if auditors flag edge-case risks affecting only a handful of contracts? Glamsterdam's postponement suggests Ethereum's answer, for now, is as long as it takes. Whether that standard holds as upgrades grow more complex remains an open question for the entire industry, not just Ethereum.
What to watch
No new Hoodi fork date has been set. Developers say Glamsterdam waits until the eight flagged invariants are resolved. Base's Denim upgrade is already live on mainnet as of 5 November 2026. Circle's Q3 2026 results showed USDC circulation averaging $73.3 billion (USD). Bonuz will track the revised Glamsterdam timeline once developers confirm it.
This article is information, not financial advice. Prices are a snapshot and change constantly. Nothing here is a recommendation to buy or sell any asset. Do your own research.
