Base completed the third mainnet upgrade: new conditional trading and expanded B20 asset functionality

According to The Block, Base has completed its third mainnet upgrade, Cobalt. The core of this upgrade is the Validity Transactions conditional transaction feature, allowing users to submit transactions with conditions that must be met before they are packaged on-chain; if the conditions are not met, the transaction will never be included.

Base stated that this API is part of a neutral infrastructure, allowing advanced traders to keep their submissions confidential before they are finalized.

Cobalt also enhances the B20 token standard launched with the Beryl upgrade in June, adding three new features. Composite Policies allow asset issuers to combine existing whitelists and blacklists using "or" and "and" logic, without the need to duplicate lists or maintain off-chain synchronization.

The Schedule Multiplier upgrade aligns with the ERC-8056 standard, supporting issuers in changing the display method of asset balances, which can be used in scenarios such as stock splits.

Base also revealed plans to shorten block time from 2 seconds to 200 milliseconds in the coming months, implement native smart accounts at the protocol layer, support Gas payment and transaction batching, and introduce some EVM improvements from the Ethereum Glamsterdam upgrade.