Note

Correct proposer determination and validator-set handling, add proposer-priority hash and signature caching for faster light verification, enforce vote-extension rules, refine block/tx sizing, and update indexer/e2e/build tooling.

• Consensus/Validators:
  • Fix proposer inference: do not assume lowest ProposerPriority is prior proposer; require proposer exists in set; add ValidatorSet.ProposerPriorityHash and pass proposer to ValidatorSetFromExistingValidators.
  • Move/clarify validation errors and checks; improve averaging/priority logic.
• Light Client/Verification:
  • Add signature cache and new VerifyCommitLight(AllSignatures)/WithCache APIs; improve batch/single verification paths and errors.
• Vote Extensions:
  • Enforce extensions only for non-nil precommits; validate presence/absence strictly; extend e2e to vary extension sizes.
• Sizing/Encoding:
  • Use protobuf-computed tx sizes; refine MaxDataBytes, part/commit size math; add Proposal.ValidateBlockSize.
• Indexer:
  • Support big int/float query bounds; add logger injection; optimize psql via bulk inserts; query fixes.
• Events/RPC/E2E/Build:
  • Minor event-bus tweaks; new infra (DigitalOcean), Prometheus config, Docker/Go upgrades, and extensive e2e/test updates.

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