send Eth-Blob-Data-Included on envelope submission - #45
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beacon-APIs#624 removed the blinded envelope flow and renamed the body discriminator on publishExecutionPayloadEnvelope from Eth-Execution-Payload-Blinded to Eth-Blob-Data-Included (true = stateless SignedExecutionPayloadEnvelopeContents body). Beacon nodes on the new spec (e.g. Lodestar) require the header and 400 without it. The old header is kept alongside for beacon nodes that predate the rename.
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Summary
beacon-APIs#624 (merged 2026-07-16) removed the blinded envelope flow from
publishExecutionPayloadEnvelopeand renamed the required body-discriminator header fromEth-Execution-Payload-BlindedtoEth-Blob-Data-Included(true= statelessSignedExecutionPayloadEnvelopeContentsbody,false= bare envelope / stateful flow). The wire schemas are unchanged.Beacon nodes on the new spec hard-require the new header — e.g. Lodestar on glamsterdam-devnet-7 rejects every envelope submission with:
This sends
Eth-Blob-Data-Included: trueon the (always-stateless) envelope submission. The pre-#624Eth-Execution-Payload-Blinded: falseheader is kept alongside so beacon nodes that predate the rename (and strictly require the old header) keep working during mixed-version transitions.Testing
go build ./http/+go vet ./http/apis/beacon/execution_payload/envelope_post.yamlspec:Eth-Blob-Data-Includedis required;trueselects the Contents schema