Set BUILDER_WITHDRAWAL_PREFIX to 0xB0 - #5416
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jtraglia merged 2 commits intoJul 3, 2026
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Follows ethereum/consensus-specs#5416, which changed the builder withdrawal credential prefix to 0xB0 (lands in v1.7.0-alpha.12).
This was referenced Jul 6, 2026
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ethereum/consensus-specs#5416 (merged, lands in v1.7.0-alpha.12) changed `BUILDER_WITHDRAWAL_PREFIX` from `0x03` to `0xB0`. This updates the builder withdrawal-credential prefix references accordingly: - `README.md`: withdrawal-credential type table row `0x03` -> `0xB0` - `config-example/cl/mnemonics.yaml`: `wd_prefix` comment `0x03=builder` -> `0xB0=builder` Not changed (different namespace): EIP-8282 deposit **request type** `0x03` references in `apps/el-gen/system-contracts.yaml` and `apps/el-gen/generate_genesis.sh`. No code in this repo validates or switches on specific `wd_prefix` values — `entrypoint.sh` only special-cases `0x00` (to null out `WITHDRAWAL_ADDRESS`), and the `DEPOSIT_CONTRACT_SETTINGS` handling in `generate_genesis.sh` accepts arbitrary `0x00`-`0xff` prefix keys, so `0xB0` works as-is.
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* use v1.7.0-alpha.12 consensus reference tests * Reduce `MAX_BUILDER_DEPOSIT_REQUESTS_PER_PAYLOAD` to 64 - ethereum/consensus-specs#5420 * Remove `MAX_DEPOSIT_REQUESTS_PER_PAYLOAD` in Gloas - ethereum/consensus-specs#5436 * Add the IL bitlist to bid - ethereum/consensus-specs#5410 * Fix some inconsistencies in fulu partial-columns spec - ethereum/consensus-specs#5357 * Restrict builder deposits to payload builders - ethereum/consensus-specs#5439 * Only reset builder withdrawal epoch if its balance has been swept - ethereum/consensus-specs#5384 * Set `BUILDER_WITHDRAWAL_PREFIX` to 0xB0 - ethereum/consensus-specs#5416 * Reduce `MIN_BUILDER_WITHDRAWABILITY_DELAY` to 64 epochs - ethereum/consensus-specs#5426 * Re-generate test reports * Fix test_light_client_processor * Fix block_sim * Drop duplicate import * Fix resttest
tersec
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* Forward compatible consensus data structures (EIP-7688) - EIP https://eips.ethereum.org/EIPS/eip-7688 - Spec ethereum/consensus-specs#4630 - Tests ethereum/consensus-specs#4630 (comment) - Kurtosis ethereum/consensus-specs#4630 (comment) * ForkedAggregate cleanup * Sync gossip checks * Cleanups * Resttest * Focil test * Progressive for PayloadAttestation, ExecutionPayloadBid, Envelope * Use mapIt * Heze constants * use v1.7.0-alpha.12 consensus reference tests (#8729) * use v1.7.0-alpha.12 consensus reference tests * Reduce `MAX_BUILDER_DEPOSIT_REQUESTS_PER_PAYLOAD` to 64 - ethereum/consensus-specs#5420 * Remove `MAX_DEPOSIT_REQUESTS_PER_PAYLOAD` in Gloas - ethereum/consensus-specs#5436 * Add the IL bitlist to bid - ethereum/consensus-specs#5410 * Fix some inconsistencies in fulu partial-columns spec - ethereum/consensus-specs#5357 * Restrict builder deposits to payload builders - ethereum/consensus-specs#5439 * Only reset builder withdrawal epoch if its balance has been swept - ethereum/consensus-specs#5384 * Set `BUILDER_WITHDRAWAL_PREFIX` to 0xB0 - ethereum/consensus-specs#5416 * Reduce `MIN_BUILDER_WITHDRAWABILITY_DELAY` to 64 epochs - ethereum/consensus-specs#5426 * Re-generate test reports * Fix test_light_client_processor * Fix block_sim * Drop duplicate import * Fix resttest
mbonenberger
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Jul 24, 2026
BUILDER_WITHDRAWAL_PREFIX changed to 0xB0 in ethereum/consensus-specs#5416 (v1.7.0-alpha.12). Updates the prefix in the fork-transition simulation, builder onboarding projection, deposit handlers/filters, templates and the deposit generator UI. Cred-type filters now accept 0,1,2,0xB0.
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This changes the (temporary) withdrawal prefix used onboard builders at the Gloas fork from 0x03 to 0xB0. The rationale for this change is that it's further away from a realistic value which may be used in the future. This was a popular change and I'm unaware of anyone that is against it.