Base, the Ethereum layer-two network backed by Coinbase, will activate the Beryl upgrade on mainnet June 25 at 18:00 UTC. The upgrade introduces B20, a native token standard that lives inside the node software rather than as a smart contract. The shift could change how tokens are issued and managed on the chain.
What B20 changes
B20 isn't just another ERC-20 clone. It's baked into the protocol itself — validators and nodes process it natively. That means token creation, transfers, and balances get handled at the infrastructure layer, not through deployed contract code. The idea is to reduce gas costs and eliminate common smart-contract bugs that plague token launches.
Why now
Base has been testing Beryl on testnet since early May. The timing lets the team push the upgrade before the summer lull. For developers, it means they can issue tokens without writing or auditing a contract. For users, transactions involving B20 tokens should be cheaper and faster.
What happens at 18:00 UTC
On June 25, the network will halt block production for a few seconds during the upgrade. Node operators must update their software before the deadline. Base has published migration docs and a testnet walkthrough. The upgrade is backward-compatible with existing ERC-20 tokens — those stay put.
Ripple effects
Other L2s are watching. If B20 gains traction, it could set a precedent for protocol-level token standards across Ethereum scaling networks. Coinbase hasn't said whether B20 will appear on its mainnet Ethereum offerings, but the standard is designed to be chain-agnostic. For now, the focus is on a smooth activation next Thursday.
