Schedule Fulu fork for Gnosis mainnet

[dapplion]

Schedule Fulu fork for Gnosis mainnet.

• Epoch: 1714688
• Timestamp: 1776168380
• UTC: Tue Apr 14 2026 12:06:20

Matches: gnosischain/configs#50, gnosischain/specs#92

[debjit-bw]

lighthouse also needs a change here:

lighthouse/consensus/types/src/core/chain_spec.rs

Line 1609 in eec0700

fulu_fork_epoch: None,

also

lighthouse/consensus/types/src/core/chain_spec.rs

Line 1679 in eec0700

default_min_epochs_for_data_column_sidecars_requests(),

for lighthouse seems to default to 4096, which for gnosis should be 16384

[debjit-bw]

nit: shouldn't this be ~15 days?

[michaelsproul]

We need to target this at the release-v8.1 branch

[michaelsproul]

Once one more commit is pushed (to fix CI), Github should forget about the previous target branch. Without a commit it can be a bit sticky.

[michaelsproul]

LGTM!

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-03-24 03:20 UTC · Rule: default
• ✅ Checks passed · on draft merge queue: embarking release-v8.1 (c451ae7) and #9007 together #9023
• ✅ Merged — 2026-03-24 03:50 UTC · at cc5a644626e75975a2c429139fc4ea2631fd5da7

This pull request spent 29 minutes 35 seconds in the queue, including 27 minutes 12 seconds running CI.

Required conditions to merge

• check-success=local-testnet-success
• check-success=test-suite-success