Ethereum postponed Hoodi’s Glamsterdam upgrade on October 22 while developers investigate EIP-8037’s interaction with existing mainnet contracts. For DeFi teams, the useful response is to trace where their application sets gas limits: a wallet, an automation workflow and a contract can each impose a different constraint.
That distinction matters for automated claims, rebalances and other contract calls. Raising the gas supplied by a transaction may resolve one failure while leaving another untouched. The postponement is a reason to test those paths before deployment, rather than simply move a date in an operations calendar.
What changed overnight
The Ethereum Foundation’s October 22 postponement notice, checked October 23, removes Hoodi’s October 26 activation and its accompanying increase to a 200 million block gas limit. No replacement date is set. This changes a future configuration; it does not undo Hoodi’s transaction history.
The earlier October 16 announcement, also checked October 23, now carries a superseding notice. Its old activation instructions should no longer be treated as current guidance.
Ordinary ETH holders have no action to take from this Hoodi update. There is no mainnet activation date in the postponement announcement.
Why a larger block does not fix every contract call
EIP-8037, created October 1, 2025 and checked October 23, 2026, proposes higher, harmonized charges for creating state and separate metering of those costs. State includes persistent information such as new storage slots, accounts and deployed contract code. Its purpose is to make higher throughput sustainable without letting state growth overwhelm node operators.
This is a proposal for changing the price and accounting of particular operations. It is not a promise that every existing transaction will execute with its previous gas budget.
Think of a larger block as more room for work across the network. An individual application can still supply too little gas for its own work, or contain a narrower limit within a nested call. Network capacity and application compatibility need separate checks.
The automation setting is only the first place to look
Chainlink’s October 1 CRE integration notice, checked October 23, supplies a concrete example. It says no action is required unless a workflow sets a gas limit. For those workflows, it recommends testing against upgraded Sepolia and adding headroom or unsetting that limit.
This notice predates the Hoodi postponement. It is evidence of an integration task, not a newly announced outage or confirmation of a mainnet launch date.
Our practical interpretation is to audit an automated action in layers:
| Layer | Question to answer in testing |
|---|---|
| Wallet or transaction builder | Does the estimate cover the action under the proposed rules? |
| Workflow configuration | Does a fixed limit override that estimate? |
| Contract-to-contract call | Does the application impose its own gas allowance? |
| Recovery process | If execution fails, can the operator detect it and safely retry? |
An operator who changes only the workflow setting has checked one layer. The remaining questions require simulation and inspection of the actual contract path.
Separate failures that need more gas from failures that need code changes
The Foundation’s August 24 repricing impact guide, checked October 23, distinguishes transactions that recover with a higher gas limit from those that still fail after a substantial increase. It says the large majority are unaffected. Potentially broken cases include hardcoded allowances, fixed transfer stipends, remaining-gas logic and presigned transactions with fixed limits.
That guide offers an affected-contract search. Its advice also includes reviewing fixed gas assumptions even when a contract is absent from the list.
For a DeFi integration, the test should reach the intended final state. A successful transaction submission or an accepted automation job is not enough: verify that the claim, transfer or rebalance actually completed. This is our testing recommendation, not a claim that a particular protocol has failed.
Hoodi operators still have an update deadline
A postponed fork can still require software work. Nethermind 2.2.1, published October 22 at 19:41 UTC and checked October 23, removes the scheduled Hoodi fork. Its release notes warn that a Hoodi node left on 2.2.0 would activate the old configuration and diverge. They also require a consensus client that removes the fork.
Operators using other clients should follow their own teams’ current release instructions. A patch number from one implementation does not establish compatibility for another.
The useful deliverable during this pause is a tested execution path: identify who controls each gas limit, reproduce any failure under the proposed rules, and establish whether configuration or contract changes resolve it. For users of automated DeFi products, that evidence is more informative than a revised upgrade countdown.
Hero: illustrative mechanical still life generated for Boxmining; it does not depict Ethereum software or test results.
Evidence limits: These sources establish a testnet postponement and compatibility work. They do not establish a live mainnet exploit, a universal increase in user fees or a confirmed replacement date. No fee or token-price forecast is made here.
Disclosure: This article is for general information and does not constitute financial or investment advice.
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