Base Completes Third Mainnet Upgrade with Conditional Transactions and B20 Asset Enhancements

ChainCatcher report, according to The Block, Base has completed its third mainnet upgrade, Cobalt. The core feature of this upgrade is the Validity Transactions conditional transaction functionality, allowing users to submit transactions with conditions that will only be included on-chain if the conditions are met; if the conditions are not satisfied, the transaction will never be included. Base stated that this API is a neutral infrastructure, enabling advanced traders to keep their submissions private until execution. Cobalt also enhances the B20 token standard, introduced with the June Beryl upgrade, adding three new features. Composite Policies allow asset issuers to combine existing allowlists and blocklists using “OR” and “AND” logic, without duplicating lists or maintaining off-chain synchronization. The Schedule Multiplier upgrade aligns with the ERC-8056 standard, enabling issuers to predefine changes in how asset balances are displayed, useful for scenarios such as stock splits. Base also revealed plans for the coming months to reduce block times from 2 seconds to 200 milliseconds, implement native smart accounts at the protocol level, support gas sponsorship and transaction batching, and integrate select EVM improvements from Ethereum’s Glamsterdam upgrade.