ACDT#42: Call Minutes + Insights

The call where developers officially recommended a 45m block gas limit

Good evening,

Today, Ethereum developers discussed remaining blockers to finalizing Fusaka code specifications. They also shared updates on client releases that increase the default block gas limit to 45m gas.

Below is the full call summary for All Core Developers Testing (ACDT) call #42.

(Takeaways on the call are also featured below for premium subscribers.)

Yours truly,

Christine D. Kim

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Fusaka Devnet-2:

• There was a bug in the Teku and Nethermind clients on Fusaka Devnet-2 that caused non-finality over the weekend. The bug has since been fixed, and the developer-focused test network (devnet) is finalizing again.

• There was also a bug in the Prysm client that developers have since fixed and created a new test case for.

• The Reth team is addressing a bug in their client related to node peering.

• Developers have not yet tested blob transactions, blob data backfilling, node syncing, and the maximal extractable value (MEV) workflow on Fusaka Devnet-2.

EIP 7907, Meter Contract Code Size Limit Increase:

• Ethereum Foundation Researcher Jochem Brouwer said his benchmark analysis on EIP 7907 will be complete by this Thursday, in time for the All Core Developers Execution (ACDE) call.

• There are still open questions related to EIP 7907, like the need for a standardized indexing feature and additional costs for transaction execution.

• Developers agreed to try to resolve these open questions, along with those related to EIP 7882, ModExp Gas Cost Increase, also by Thursday.

Engine_getBlobsV2:

• Developers are leaning towards updating the engine_getBlobsV2 execution API so that the method returns partial responses.

• Developers agreed to make a final decision about this change by tomorrow, July 1, and barring any strong objections, include it for testing in Fusaka Devnet-3.

EIP 7892, Blob Parameter Only (BPO) Hard Forks:

• Developers revisited their decision to limit the maximum blob count per transaction to six and are reconsidering their intentions to make this parameter updatable through regular Ethereum hard forks, as opposed to BPO forks.

• Developers said they would try to reach a final decision about these changes on the forthcoming ACDE call.

Raising the Block Gas Limit to 45m:

• All execution layer (EL) client teams, except the Besu team, have released new software where the block gas limit, by default, is set to 45m gas.

• Ethereum Foundation Developer Operations Engineer Parithosh Jayanthi asked the consensus layer (CL) client teams to release software to support the new default block gas limit.

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Editor’s note: Some quotes featured in this section have been edited slightly for grammar and clarity.

1. Fusaka specifications are still in flux.