Summary
- Introduce B20: Base’s native token standard for stablecoin, real-world asset (RWA), and long-tail token issuers
- Reduce the single-proof withdrawal finalization period from 7 days to 5 days for increased capital efficiency
- Reth V2: up to 50% disk reduction and a rewritten state root pipeline delivering +33% throughput
Activation Timestamps
| Network | Timestamp | Date |
|---|
mainnet | 1782410400 | 2026-06-25 18:00:00 UTC |
sepolia | 1781805600 | 2026-06-18 18:00:00 UTC |
Action required before activation. Upgrade to the latest base-reth-node release on both Sepolia and Mainnet before their respective activation dates above. Required software versions will be published here ahead of activation.
B20: Native Token Standard
B20 is Base’s native token standard - ERC-20 compatible tokens implemented as Rust precompiles, designed for stablecoin, real-world asset, and long-tail token issuers.
Withdrawals
The single-proof dispute game finalization window is reduced from 7 days to 5 days. The dual-proof fast path (TEE + ZK) introduced in Azul remains at 1 day.
Shortening the single-proof window frees capital for fast-bridge liquidity providers sooner, reducing fees and improving reliability for users who bridge through third-party partners.
Reth V2
