
The Base Beryl upgrade delay moved the mainnet hard fork to June 26 at 18:00 UTC. It was first planned for June 25. Base cited the full readiness of the B20 Activation Registry before launch.
The Base Beryl upgrade delay came before Beryl’s mainnet launch. Base said the registry controls whether B20 feature flags become available after the hard fork. The registry may need up to one hour to become active.

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Base Beryl Upgrade Delay to Secure B20 Launch
Base stated that extra time was necessary prior to the update. The Base Beryl upgrade delay ensures that enough time is allocated to verify registry preparation. This will prevent early activation of B20 features.
Beryl is Base’s second independent network update after Azul. Azul was implemented in Mainnet in May. Beryl launches B20, which is a protocol-level token standard for stablecoins and real-world asset tokens.
The Base Beryl upgrade delay focuses on B20’s launch process. The protocol level enables issuers to mint their tokens through Base node software. It prevents the implementation of traditional ERC-20 smart contracts.
Base previously stated that B20 is still compliant with ERC-20 standardization. It also provides an ERC-2612 permit mechanism. This design enables existing wallets, exchanges, and indexers to operate without any modifications.
B20 also has an Issuer Toolkit that allows controlled token issuance. Its features include role-based permissions, mint and burn controls, transfer controls, supply caps that are optional, and freezes and seizures. These tools are useful for regulated issuers.
Beryl Upgrade Cuts Base Withdrawal Period to Five Days
Moreover, Beryl decreases the withdrawal period from Base to Ethereum from seven days to five days, which is used by most bridge providers. According to Base, the change in the period was made due to the Multiproofs framework of Azul.
The Base Beryl upgrade delay occurred after the separate mainnet outage on June 25. According to Base, blocks ceased production for two hours as a result of consensus failure that allowed an invalid block to be included in the sequencing pipeline.
According to Base, the outage had nothing to do with Beryl. According to Jesse Pollak, the Base creator, users funds were safe during the pause. Pollak called network halts unacceptable for the infrastructure designed for global finance.
The Base Beryl upgrade delay makes Reth V2 relevant. It can decrease the storage requirements for nodes by 50%. Cobalt is scheduled for September, and its features will be native account abstraction, smart accounts, gas sponsorship, transaction batching, more B20 capabilities, and a unified binary.
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