Rename max IL transactions bytes constant per spec change

[conache]

Proposed Changes

• Rename MAX_BYTES_PER_INCLUSION_LIST to MAX_TRANSACTIONS_BYTES_PER_INCLUSION_LIST per consensus-specs#5508 PR.

• Add the missing IL config values to the Config struct, so config file values can modify them instead of Lighthouse silently using its hardcoded defaults:

  • MAX_TRANSACTIONS_BYTES_PER_INCLUSION_LIST
  • MAX_REQUEST_INCLUSION_LIST
  • MIN_SLOTS_FOR_INCLUSION_LISTS_REQUESTS

[mergify]

Some required checks have failed. Could you please take a look @conache? 🙏

[eserilev]

this is fine but i think we should extend the scope of this PR a little bit

Lighthouse never reads this value from a config file. The number 8192 is hardcoded. If a devnet config sets a different value, Lighthouse ignores it and uses 8192 anyway, with no warning.

The fix would be to add the field to the Config struct, and remove the key from the UPSTREAM_KEYS_NOT_IN_LIGHTHOUSE list. Then config files control the value, like every other networking parameter. We should double check that other IL config values are also in the Config struct

[conache]

this is fine but i think we should extend the scope of this PR a little bit

Lighthouse never reads this value from a config file. The number 8192 is hardcoded. If a devnet config sets a different value, Lighthouse ignores it and uses 8192 anyway, with no warning.

The fix would be to add the field to the Config struct, and remove the key from the UPSTREAM_KEYS_NOT_IN_LIGHTHOUSE list. Then config files control the value, like every other networking parameter. We should double check that other IL config values are also in the Config struct

Thank you for the context! This makes sense. I added the suggested change for MAX_TRANSACTIONS_BYTES_PER_INCLUSION_LIST.

I also double-checked the other IL config values and found out that the following had the same problem (and added fixes for them):

• MAX_REQUEST_INCLUSION_LIST
• MIN_SLOTS_FOR_INCLUSION_LISTS_REQUESTS

[eserilev]

LGTM

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-08-11 08:12 UTC · Rule: default · triggered by rule Add ready-to-merge labeled PRs to merge queue
• ✅ Checks passed · on draft merge queue: checking unstable (92fb9e2) and #9741 together #9791
• ✅ Merged — 2026-08-11 08:41 UTC · at d8bd99f8191b3d9440bae5e21ec968e758fd9086 · squash

This pull request spent 28 minutes 51 seconds in the queue, including 26 minutes 48 seconds running CI.

Required conditions to merge

• check-success=local-testnet-success
• check-success=test-suite-success
• github-review-approved [🛡 GitHub branch protection]
  • Rename max IL transactions bytes constant per spec change #9741