All Core Devs - Testing (ACDT) #81, June 1, 2026

[danceratopz]

UTC Date & Time

June 01, 2026, 14:00 UTC

Agenda

Glamsterdam

Heads up: As repricing specs have stabilized, the fortnightly Wednesday Gas Repricing Breakout Calls held by @misilva73 have stopped; any required discussion will happen in ACDT.

Devnet Status and Benchmarking

• bal-devnet-7, hive dashboard, dora:

  • Stable, 100% EVM fuzzing participation (reported in Repricings #8) @qu0b.
  • Clients:
    • eth/70 (EIP-7975) and eth/71 (EIP-8159) are mandatory on bal-devnet-7 - is this work complete? @qu0b.
  • Final test release tests-bal@v7.3.0 once 8037 lands in forks/amsterdam, tracker: ethereum/execution-specs#2912 @spencer-tb.

• Benchmarking / repricing status (@misilva73 + client teams):

  • State of client BAL optimizations in bal-devnet-7 branches? Per-client round.
    • ethrex reports ~3x exec speed-up vs devnet-3?
    • Nethermind OOM affecting benchmarking results?
    • Besu (shipped AOT and an OOM fix).
    • Geth BAL opt branch this week?
  • How much of a priority is it to replace the perf-devnet-3 snapshots with ethereum/state-actor? (execution-specs#2916). This can be deferred to tomorrow's Gas Lighting call.

• glamsterdam-devnet-4 not so healthy as of ~May 25::

  • Chain split ~slot 22800; prysm-nethermind-1 forked on EMPTY after missing the 22800 payload.
  • PR (consensus-specs#5307).
  • Recover the chain or abandon for devnet-5?

Spec Changes

• EIP-7928 heads up: ethereum/EIPs#11750, (merged) by @raxhvl, flagged by @bharnett:

  • Each SlotChanges MUST contain >=1 StorageChange (no empty change sets); EELS test added.

• EIP-7928, @nerolation wants to discuss decoupling state-access validation from EIP-2929: stack-depth and balance checks move into the pre-state phase, and cold-access warming plus BAL insertion are now paired with each post-state access-cost charge.

  • ethereum/EIPs@master...nerolation:EIPs:toni/state-access
  • Related discussion Eth R&D: https://discord.com/channels/595666850260713488/1506543443172921464/1509797201340137544

• EIP-8037 heads up ethereum/EIPs#11706 (merged) @misilva73.

  • Calldata floor accounting alignment & call-frame refill clarification

• EIP-8037, ethereum/EIPs#11715, 8037 (open) by @rjl493456442:

  • Expand EIP-7702 authorization gas refunds (5-rule per-authorization scheme).
  • Client-team opinions before approving: do we want this added refund complexity / any attack vectors?

• EIP-2780, ethereum/EIPs#11735, 2780 in draft by @rakita:

  • Remove the self-transfer and precompile intrinsic-gas carve-outs; always charge tx.to at the cold rate.
  • Open: keep charging TRANSFER_LOG_COST for self-transfers when EIP-7708 emits no log? (@benaadams objects; @rakita agrees PR will change.)
  • Architectural gate (@gurukamath): one gas cost, or split Code vs No-Code accounts? Blocks the impl + numbers.

• EIP-8246 Remove SELFDESTRUCT Burn: Review, required by EIP-7708 @chfast - in the devnet-5 set?

Glamsterdam spec next TODOs

1. Finalize gas repricings numbers (ongoing on bal-devnet-7).
2. CL stability; resolve consensus-specs#5307.
3. Include new EL EIPS:
   i. EIP-8246 (remove self-destruct burn).
   ii. EIP-2780 (intrinsic gas) and EIP-8038 (state-access gas cost update), requires 1., but not 4.
4. Updated EL EIP: EIP-7954 (increase max contract size w/larger numbers).
5. EL EIP spec changes as above.
6. Any other CL changes?

i. EIP-8045: Exclude slashed validators from proposing.
ii. EIP-7688: Forward compatible consensus data structures @etan-status?
iii. ...

Options and scoping of glamsterdam-devnet-5 OR next devnets

1. Clean glamsterdam-devnet-4 spec relaunch. (CL ask from ACDC #179: stability first, no scope increase for 2 weeks).
2. glamsterdam-devnet-4 with bal-devnet-7 (with or without some SFId EL EIP spec changes, details below).
3. As 2. but with bal-devnet-7 with 2780/8038 placeholder numbers.
4. Launch two devnets simultaneously and merge into later devnet:
   i. glamsterdam-devnet-5 for CL stability.
   ii. bal-devnet-8 for close-to-final EL spec.
   iii. -> merge into glamsterdam-devnet-6.

• Timing of devnet launch(es)?

Other Topics

• SSZ Engine API: Update Meeting 156.md #764 closed for execution-apis#793 @MariusVanDerWijden (ACDC #179) - EL teams moving to 793?
• Heads up: EPF cohort-7 starting - submit project ideas.
• Heads up: ACDC #180 (June 11) trials an 11:00 UTC slot to allow easier participation from APAC devs.

Please comment on this issue with other topics!

Last call:

• ACDT # 80 Agenda: All Core Devs - Testing (ACDT) #80, May 18, 2026 #2049.
• ACDT # 80 on forkcast (with summary).

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All Core Devs - Testing

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[nerolation]

I want to discuss the following PR. It decouples state-access validation from EIP-2929: stack-depth and balance checks move into the pre-state phase, and cold-access warming plus BAL insertion are now paired with each post-state access-cost charge.

ethereum/EIPs@master...nerolation:EIPs:toni/state-access

Related discussion:
https://discord.com/channels/595666850260713488/1506543443172921464/1509797201340137544

[akashkshirsagar31]

X Stream: https://x.com/i/broadcasts/1PKqrrPWaRQGb

[misilva73]

For the glamsterdam-devnet-5 scoping discussion, a quick update on changes to EIP-8037:

• Update EIP-8037: Calldata floor accounting alignment & call-frame refill clarification: merged
• Update EIP-8037: improve EIP-7702 authorization gas accounting in EIP-8037: still open; want to discuss inclusion in this call.

[qu0b]

Would be great if clients could confirm work on eth/70 and eth/71 is done

[etan-status]

For 7688 (i.e., the proper fix for handling the deposits SSZ limit with 200M gas), Nimbus/Lodestar is ready.

[danceratopz]

Summary on forkcast:
https://forkcast.org/calls/acdt/081