Base delays Beryl mainnet upgrade by one day to June 26
Base said B20 token standard activation on mainnet has been delayed again after network stability issues, while Sepolia and Vibenet remain on schedule pending a revised timeline.
Base has delayed activation of its B20 token standard on mainnet again after recent network stability issues, with a revised timeline to be announced. The latest delay follows an earlier plan to switch on the feature on June 27 at 2:00 on Base mainnet, after the Coinbase-incubated Ethereum Layer 2 had already pushed its Beryl mainnet upgrade by one day to June 26 at 18:00 UTC because the B20 Activation Registry needed to be fully live before native token features could be enabled. Sepolia and Vibenet remain on schedule. Beryl is Base's second standalone network upgrade after May's Azul and also reduces the standard single-proof withdrawal delay from Base to Ethereum to five days from seven while integrating Reth V2, which Base says can cut node storage overhead by up to 50%. The rollout comes after a roughly two-hour block production outage on Base mainnet on June 25 caused by a consensus failure that allowed an invalid block into the sequencing pipeline, an incident the team said was unrelated to Beryl.
- B20 token standard: A protocol-level token framework on Base intended to let tokens operate natively at the network level rather than only as smart contracts.
- B20 Activation Registry: A system that controls whether B20 feature flags are live on Base before native token functionality can be used.
- Reth V2: A client software upgrade that Base says can reduce node storage overhead.