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# dencun-devnet-12 specs
:::info
:mega: Devnet-12 starts Wednesday, 29 November 2023 13:00:00 UTC, it will run most likely until Goerli fork.
:::
## EIP List for Dencun
[EIP-1153: Transient storage opcodes](https://eips.ethereum.org/EIPS/eip-1153)
[EIP-4844: Shard Blob Transactions](https://eips.ethereum.org/EIPS/eip-4844)
[EIP-4788: Beacon block root in the EVM](https://eips.ethereum.org/EIPS/eip-4788)
[EIP-5656: MCOPY - Memory copying instruction](https://eips.ethereum.org/EIPS/eip-5656)
[EIP-6780: SELFDESTRUCT only in same transaction](https://eips.ethereum.org/EIPS/eip-6780)
[EIP-7044: Perpetually Valid Signed Voluntary Exits](https://eips.ethereum.org/EIPS/eip-7044)
[EIP-7045: Increase Max Attestation Inclusion Slot](https://eips.ethereum.org/EIPS/eip-7045)
[EIP-7514: Add max epoch activation churn limit](https://eips.ethereum.org/EIPS/eip-7514)
[EIP-7516: BLOBBASEFEE opcode](https://eips.ethereum.org/EIPS/eip-7516)
## [Docker images](https://github.com/ethpandaops/dencun-testnet/blob/master/ansible/inventories/devnet-12/group_vars/all/images.yaml) for devnet 12
### Open issues
### Spec changes for dencun-devnet-12
**Consensus Spec** [v1.4.0-beta.4](https://github.com/ethereum/consensus-specs/releases/tag/v1.4.0-beta.4) :heavy_check_mark:
- [PR-3531 - Add blob sidecar inclusion proof](https://github.com/ethereum/consensus-specs/pull/3531) :heavy_check_mark: Merged
**Execution EIPs**
- No additional change compared to devnet 11
**Engine API**
- No additional change compared to devnet 11
**Beacon API** - [v2.4.2](https://github.com/ethereum/beacon-APIs/releases/tag/v2.4.2) :heavy_check_mark:
- No additional change compared to devnet 11
**Builder Spec**
- No additional change compared to devnet 11
### Spec changes for older 4844-devnet-6,7 and dencun-devnet-8,9,10,11 devnets
**Consensus Specs** - [v1.4.0-beta.3](https://github.com/ethereum/consensus-specs/releases/tag/v1.4.0-beta.3) :heavy_check_mark:
* [PR-3499 - Add max epoch activation churn limit (EIP-7514)](https://github.com/ethereum/consensus-specs/pull/3499) - Merged :heavy_check_mark:
* [PR-3461 - Rename "data gas" to "blob gas"](https://github.com/ethereum/consensus-specs/pull/3461) - Merged :heavy_check_mark:
* [PR-3421 - Move move 4788 to deneb](https://github.com/ethereum/consensus-specs/pull/3421) - Merged :heavy_check_mark:
* [PR-3444 - Update blob side car subnet count to 6 in line with max blobs limit update](https://github.com/ethereum/consensus-specs/pull/3416) - Merged :heavy_check_mark:
* [PR-3410 - Update MAX_BLOBS_PER_BLOCK to 6 and add Deneb networking configs to yaml files](https://github.com/ethereum/consensus-specs/pull/3410) - Merged :heavy_check_mark:
* [PR-3392 - Change ExecutionPayload.excess_data_gas type from uint256 to uint64](https://github.com/ethereum/consensus-specs/pull/3392) - Merged :heavy_check_mark:
* [PR-3391 - Add data_gas_used field to ExecutionPayload](https://github.com/ethereum/consensus-specs/pull/3391) - Merged :heavy_check_mark:
* [PR-3359 - Use engine_newPayloadV3 to pass versioned_hashes to EL for validation](https://github.com/ethereum/consensus-specs/pull/3359) - Merged :heavy_check_mark:
* [PR-3354 - Update the endianness of the polynomial commitments to be big endian](https://github.com/ethereum/consensus-specs/pull/3354) - Merged :heavy_check_mark:
* [PR-3338 - Update block's blob_kzg_commitments size limit to MAX_BLOB_COMMITMENTS_PER_BLOCK (4096)](https://github.com/ethereum/consensus-specs/pull/3338) - Merged :heavy_check_mark:
* [PR-3317 - Switch blob tx type to 0x03](https://github.com/ethereum/consensus-specs/pull/3317) - Merged :heavy_check_mark:
* [PR-3244 - Free the blobs](https://github.com/ethereum/consensus-specs/pull/3244) - Merged :heavy_check_mark:
**Execution EIPs**
* [PR-7672 - Update EIP-4788: post audit tweaks](https://github.com/ethereum/EIPs/pull/7672/files) - Merged :heavy_check_mark:
* [PR-7456 - Update EIP-4788: initial stab at v2](https://github.com/ethereum/EIPs/pull/7456) - Merged :heavy_check_mark:
* [PR-7354 - Rename "data gas" to "blob gas"](https://github.com/ethereum/EIPs/pull/7354) - Merged :heavy_check_mark:
* [PR-7172 - Update precompile address for 4844](https://github.com/ethereum/EIPs/pull/7172) - Merged :heavy_check_mark:
* [PR-7154 - Increase Blob Throughput](https://github.com/ethereum/EIPs/pull/7154) - Merged :heavy_check_mark:
* [PR-7123 - Update EIP-4844: clarify transaction payload body](https://github.com/ethereum/EIPs/pull/7123) - Merged :heavy_check_mark:
* [PR-7100 - clarify to must be non-nil](https://github.com/ethereum/EIPs/pull/7100) - Merged :heavy_check_mark:
* [PR-7095 - reduce size of excess_data_gas to 64 bit](https://github.com/ethereum/EIPs/pull/7095) - Merged :heavy_check_mark:
* [PR-7062 - add data_gas_used to header](https://github.com/ethereum/EIPs/pull/7062) - Merged :heavy_check_mark:
* [PR-7038 - Cleanup transaction network payload references](https://github.com/ethereum/EIPs/pull/7038) - Merged :heavy_check_mark:
* [PR-7020 - Specify precompile input's z and y to be encoded as big endian](https://github.com/ethereum/EIPs/pull/7020) - Merged :heavy_check_mark:
* [PR-6985 - de-sszify spec](https://github.com/ethereum/EIPs/pull/6985) - Merged :heavy_check_mark:
* [PR-6863 - Ban Zero Blob Transactions](https://github.com/ethereum/EIPs/pull/6863) - Merged :heavy_check_mark:
* [PR-6832 - Blob Transaction Type changed to 0x03](https://github.com/ethereum/EIPs/pull/6832) - Merged :heavy_check_mark:
* [PR-6610 - Decouple Blobs](https://github.com/ethereum/EIPs/pull/6610) - Merged :heavy_check_mark:
**Engine API**
* [PR-398 - Add dataGasUsed and dataGasPrice to receipts for 4844 txs](https://github.com/ethereum/execution-apis/pull/398) - Merged :heavy_check_mark:
* [PR-451 - Rename "data gas" to "blob gas"](https://github.com/ethereum/execution-apis/pull/451) - Merged :heavy_check_mark:
* [PR-426 - Clarify Cancun payloads handling by earlier APIs; reorder checks](https://github.com/ethereum/execution-apis/pull/426) - Merged :heavy_check_mark:
* [PR-425 - Scope shouldOverrideBuilder flag for Cancun](https://github.com/ethereum/execution-apis/pull/425) - Merged :heavy_check_mark:
* [PR-420 - Cancun specification](https://github.com/ethereum/execution-apis/pull/420) - Merged :heavy_check_mark:
* [PR-418 - Employ one method one structure approach for V3](https://github.com/ethereum/execution-apis/pull/418) - Merged :heavy_check_mark:
* [PR-417 - Update PayloadV3 with data gas use](https://github.com/ethereum/execution-apis/pull/417) - Merged :heavy_check_mark:
* [PR-407 - Engine API: validate blob versioned hashes](https://github.com/ethereum/execution-apis/pull/407) - Merged :heavy_check_mark:
* [PR-404 - Assert array items in BlobsBundleV1 to be of same length](https://github.com/ethereum/execution-apis/pull/404) - Merged :heavy_check_mark:
* [PR-402 - Merge getPayloadV3 and getBlobsBundleV1](https://github.com/ethereum/execution-apis/pull/402) - Merged :heavy_check_mark:
* [PR-401 - State that payloadId should be unique for each PayloadAttributes instance](https://github.com/ethereum/execution-apis/pull/401) - Merged :heavy_check_mark:
* [PR-392 - Add corresponding proofs to BlobsBundleV1](https://github.com/ethereum/execution-apis/pull/392) - Merged :heavy_check_mark:
**Beacon API** - [v2.4.2](https://github.com/ethereum/beacon-APIs/releases/tag/v2.4.2) :heavy_check_mark:
* [PR-339 - Add block v3 endpoint](https://github.com/ethereum/beacon-APIs/pull/339) - Merged :heavy_check_mark:
* [PR-339 - Add block v3 endpoint](https://github.com/ethereum/beacon-APIs/pull/339) - Merged :heavy_check_mark:
* [PR-317 - Add broadcast_validation to block publishing](https://github.com/ethereum/beacon-APIs/pull/317) - Merged :heavy_check_mark:
* [PR-321 - Update publishBlindedBlockV2 request schema for Deneb ](https://github.com/ethereum/beacon-APIs/pull/321) - Merged :heavy_check_mark:
* [PR-302 - Add blob signing endpoints](https://github.com/ethereum/beacon-APIs/pull/302) - Merged :heavy_check_mark:
* [PR-286 - Add blob download endpoint (getBlobs)](https://github.com/ethereum/beacon-APIs/pull/286) - Merged :heavy_check_mark:
**Builder Spec**
* [PR-87 - RFC: Use MAX_BLOB_COMMITMENTS_PER_BLOCK as max length for BlindedBlobsBundle SSZ lists](https://github.com/ethereum/builder-specs/pull/87) - Merged :heavy_check_mark: