Repository navigation
Operator action
| Network | Action | Deadline | Why |
|---|---|---|---|
| Base Mainnet | Recommended | None | Fixes for synchronization and block propagation at 200ms block times |
| Base Sepolia | Recommended | None | Fixes for synchronization and block propagation at 200ms block times |
Applies to: all operators.
Breaking changes
The following engine defaults change for base, base-reth-node, and base-builder-bin:
--engine.persistence-threshold: 7 → 70 blocks.--engine.memory-block-buffer-target: 5 → 70 blocks.--engine.persistence-backpressure-threshold: 16 → 160 blocks.
Set these flags explicitly to retain the previous values. Existing overrides still apply; review custom settings together. Larger buffers can increase memory use and replay after an unclean shutdown.
What's changed
base-reth-node
- Tunes engine persistence defaults for 200ms blocks to reduce persistence-related stalls (#6464).
base-consensus
- Fixes sequencer followers getting stuck catching up at 200ms block times (#6321).
- Increases the outbound gossip queue to reduce dropped messages under bursty load (#6454).
Full changelog: v1.5.3...v1.5.4