archived snapshot 2026-11-04T01:32:52Z, shown with the current code and proofs · latest data · all snapshots

Status / EIP-8024

EIP-8024 Backward Compatible SWAPN, DUPN, EXCHANGE

SFI Glamsterdam: Scheduled · EIP status Last Call

EIP text · EELS tests · all spec changes ·

**EIP-8024 dupn swapn exchange** (eipproof, fork glamsterdam, snapshot 2026-11-04T01:32:52Z)

- Nethermind: old tests v21.0.1. Nethermind's newest run used tests v21.0.1, but the newest EELS release is v21.0.2. Old tests do not check the current spec, so the old 294/294 is shown but does not count. Next: run v21.0.2. [evidence](https://nethermindeth.github.io/eipproof/glamsterdam/index.html#8024-nethermind)
- Geth: old tests v21.0.1. Geth's newest run used tests v21.0.1, but the newest EELS release is v21.0.2. Old tests do not check the current spec, so the old 294/294 is shown but does not count. Next: run v21.0.2. [evidence](https://nethermindeth.github.io/eipproof/glamsterdam/index.html#8024-go-ethereum)
- Reth: old tests v21.0.1. Reth's newest run used tests v21.0.1, but the newest EELS release is v21.0.2. Old tests do not check the current spec, so the old 294/294 is shown but does not count. Next: run v21.0.2. [evidence](https://nethermindeth.github.io/eipproof/glamsterdam/index.html#8024-reth)
- ethrex: old tests v21.0.1. ethrex's newest run used tests v21.0.1, but the newest EELS release is v21.0.2. Old tests do not check the current spec, so the old 294/294 is shown but does not count. Next: run v21.0.2. [evidence](https://nethermindeth.github.io/eipproof/glamsterdam/index.html#8024-ethrex)
- Besu: old tests v21.0.1. Besu's newest run used tests v21.0.1, but the newest EELS release is v21.0.2. Old tests do not check the current spec, so the old 294/294 is shown but does not count. Next: run v21.0.2. [evidence](https://nethermindeth.github.io/eipproof/glamsterdam/index.html#8024-besu)
- EELS: update tests to EIP version f1ade090. EELS v21.0.2 tests a text not in the EIP history; the EIP changed 13 times since, newest f1ade090 on 2026-10-22. [EIP diff](https://github.com/ethereum/EIPs/commits/f1ade090fd315895461fc3e249cb1a675aeb55a9/EIPS/eip-8024.md)

Spec changes, newest first:
- [f1ade090](https://github.com/ethereum/EIPs/commit/f1ade090fd315895461fc3e249cb1a675aeb55a9) 2026-10-22 Update EIP-2780: Align titles and descriptions of Glamsterdam EIPs (#12561): untested
- [5ef38012](https://github.com/ethereum/EIPs/commit/5ef380124bd68d09c02fa90d0de0f2455f37d5ee) 2026-10-06 Update EIP-2780: Move to Last Call (#12442): untested
- [34b49095](https://github.com/ethereum/EIPs/commit/34b49095ca5f7343045da279f04e7ecd1e451393) 2026-06-10 Update EIP-8024: Fix typo: untested
- [c0aa8d79](https://github.com/ethereum/EIPs/commit/c0aa8d79038e0bf60ab8f15ff32ef17ba3b80882) 2026-02-25 Update EIP-8024: Document decoding range: untested
- [d0b75a60](https://github.com/ethereum/EIPs/commit/d0b75a60e8b8cd79048a439c78fb3b3d1c3c9adb) 2026-02-25 Update EIP-8024: Switch to branchless normalization and extend EXCHANGE: untested
- [05146bfc](https://github.com/ethereum/EIPs/commit/05146bfcf2a3b0b5962b289ab2bd79b706a45906) 2026-02-07 Update EIP-8024: Improve rationale: untested
- [0f224ab2](https://github.com/ethereum/EIPs/commit/0f224ab230ffbdcfa28aa69b8aa78e20fe293360) 2026-01-16 Update EIP-8024: Add tests for the specified behavior at end of code (#11095): untested
- [099cdbc4](https://github.com/ethereum/EIPs/commit/099cdbc4d8c83a2d04b086b93453bb525301091e) 2026-01-15 Update EIP-8024: Specify behavior at end of code: untested
- [0377ea19](https://github.com/ethereum/EIPs/commit/0377ea19d4d7e0cffeded97e01ce4d5293e83260) 2025-12-11 Update EIP-8024: Add test case for exceptional halt: untested
- [dcbc74e1](https://github.com/ethereum/EIPs/commit/dcbc74e19eb66678144dcc43ec40d1ac660843d6) 2025-12-11 Update EIP-8024: Add explicit halting conditions: untested
- [5e6b0c27](https://github.com/ethereum/EIPs/commit/5e6b0c27237e369623376cbfc02d887848e9c21b) 2025-12-01 Update EIP-8024: Add test case for PC increment: untested
- [db5c483e](https://github.com/ethereum/EIPs/commit/db5c483ea122c6735cd92ff135de985f0e9253e2) 2025-11-04 Update EIP-8024: Fix pair encoding to match intent: untested

[EIP text](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-8024.md) · [eipproof page](https://nethermindeth.github.io/eipproof/glamsterdam/eip-8024.html)

Clients open a cell for the why, the three checks and the evidence

Nethermindv21.0.1 old release

Gethv21.0.1 old release

Rethv21.0.1 old release

ethrexv21.0.1 old release

Besuv21.0.1 old release

EELStests v21.0.2

EELS to do update tests to EIP version f1ade090 EIP diff

EELS v21.0.2 tests a text not in the EIP history; the EIP changed 13 times since, newest f1ade090 on 2026-10-22.

Spec changes and their tests newest first; each EIP commit, the EELS change that pinned it, its first release and the client runs on it

2026-10-22f1ade090Update EIP-2780: Align titles and descriptions of Glamsterdam EIPs (#12561) (commit for EIP-2780; it also edits this EIP) header only untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2026-10-065ef38012Update EIP-2780: Move to Last Call (#12442) (commit for EIP-2780; it also edits this EIP) header only untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2026-06-1034b49095Update EIP-8024: Fix typo untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2026-02-25c0aa8d79Update EIP-8024: Document decoding range untested
tests: EELS PR #2881 pinned this text on 2026-05-19, test files test_dupn.py, test_eip_vectors.py, test_endofcode_underflow.py and 3 more · first release v20.0.0 · no client run on a release with this text
2026-02-25d0b75a60Update EIP-8024: Switch to branchless normalization and extend EXCHANGE untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2026-02-0705146bfcUpdate EIP-8024: Improve rationale untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2026-01-160f224ab2Update EIP-8024: Add tests for the specified behavior at end of code (#11095) untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2026-01-15099cdbc4Update EIP-8024: Specify behavior at end of code untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2025-12-110377ea19Update EIP-8024: Add test case for exceptional halt untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2025-12-11dcbc74e1Update EIP-8024: Add explicit halting conditions untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2025-12-015e6b0c27Update EIP-8024: Add test case for PC increment untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).
2025-11-04db5c483eUpdate EIP-8024: Fix pair encoding to match intent untested
tests: not updated to this text. EELS v21.0.2 still tests a text that is not in the EIP history (pin 34b49095).

Client PRs matched by title, not a verdict

open and merged PRs whose title names EIP-8024; merged ones since the last 60 days

Nethermind	not collected in this snapshot
Geth	not collected in this snapshot
Reth	not collected in this snapshot
ethrex	not collected in this snapshot
Besu	not collected in this snapshot

EIP-8024 Backward Compatible SWAPN, DUPN, EXCHANGE

Clients open a cell for the why, the three checks and the evidence

Spec changes and their tests newest first; each EIP commit, the EELS change that pinned it, its first release and the client runs on it

Three checks

Three checks

Three checks

Three checks

Three checks