Skip to content

engine: add targetGasLimit to PayloadAttributesV4 #796

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mkalinin merged 3 commits into from
May 18, 2026
+9 −2
Merged

engine: add targetGasLimit to PayloadAttributesV4 #796

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
f871314
engine: add targetGasLimit to PayloadAttributesV4
nflaig May 11, 2026
dbae1bb
add new line
nflaig May 11, 2026
e407224
Merge branch 'main' into fcu-gas-limit
mkalinin May 12, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion src/engine/amsterdam.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -83,14 +83,15 @@ This structure has the syntax of [`ExecutionPayloadBodyV1`](./shanghai.md#execut

### PayloadAttributesV4

This structure has the syntax of [`PayloadAttributesV3`](./cancun.md#payloadattributesv3) and appends a single field: `slotNumber`.
This structure has the syntax of [`PayloadAttributesV3`](./cancun.md#payloadattributesv3) and appends two new fields: `slotNumber` and `targetGasLimit`.

- `timestamp`: `QUANTITY`, 64 Bits - value for the `timestamp` field of the new payload
- `prevRandao`: `DATA`, 32 Bytes - value for the `prevRandao` field of the new payload
- `suggestedFeeRecipient`: `DATA`, 20 Bytes - suggested value for the `feeRecipient` field of the new payload
- `withdrawals`: `Array of WithdrawalV1` - Array of withdrawals, each object is an `OBJECT` containing the fields of a `WithdrawalV1` structure.
- `parentBeaconBlockRoot`: `DATA`, 32 Bytes - Root of the parent beacon block.
- `slotNumber`: `QUANTITY`, 64 Bits - value for the `slotNumber` field of the new payload
- `targetGasLimit`: `QUANTITY`, 64 Bits - target value for the `gasLimit` field of the new payload

### BlobCellsAndProofsV1

Expand Down Expand Up @@ -234,6 +235,8 @@ This method follows the same specification as [`engine_forkchoiceUpdatedV3`](./c

4. If any of the above checks fails, the `forkchoiceState` update **MUST NOT** be rolled back.

2. Client software **MUST** use the target gas limit supplied in `payloadAttributes.targetGasLimit` when constructing a payload.

3. If `custodyColumns` is provided (non-null), the following rules apply:

1. `custodyColumns` **MUST** be a 16-byte `DATA` value. If it is not, the client software **MUST** return `-32602: Invalid params`.
Expand Down
6 changes: 5 additions & 1 deletion src/engine/openrpc/schemas/forkchoice.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,7 @@ PayloadAttributesV4:
- withdrawals
- parentBeaconBlockRoot
- slotNumber
- targetGasLimit
properties:
timestamp:
$ref: '#/components/schemas/PayloadAttributesV3/properties/timestamp'
Expand All @@ -108,4 +109,7 @@ PayloadAttributesV4:
$ref: '#/components/schemas/PayloadAttributesV3/properties/parentBeaconBlockRoot'
slotNumber:
title: Slot number
$ref: '#/components/schemas/uint64'
$ref: '#/components/schemas/uint64'
targetGasLimit:
title: Target gas limit
$ref: '#/components/schemas/uint64'
Loading