Base has deployed the Beryl upgrade to the Sepolia testnet, scheduled the release of mainnet activation on June 25th, introduced native token standards, and reduced withdrawal times to Ethereum.

Base’s engineering team said in a blog post on Thursday that Beryl will add B20, a protocol-level token standard that allows issuers to create stablecoins and other assets directly within Base’s node software. The company also said that the upgrade will reduce the standard withdrawal period from Base to Ethereum, the route currently used by most bridging providers, from seven days to five days.

According to Base, B20 fully supports the ERC-20 specification and includes ERC-2612 authorization functionality that allows token holders to authorize spending through signatures rather than individual authorization transactions. The company said that existing wallets, exchanges, and indexers that support ERC-20 tokens can integrate B20 assets without modification.

Unlike traditional ERC-20 tokens that operate through smart contracts, B20 tokens run as precompiled contracts within Base’s node software. According to Base, the token logic is written in Rust and is executed directly within the protocol rather than via EVM bytecode.

The company added that B20 is built on code audited by Base and security firm Spearbit. A future update will allow issuers to pay transaction fees with their own B20 tokens instead of ETH.

Beryl expands on work introduced through Azul, Base’s first independent network upgrade, which reached mainnet in May. Azul は、出金を検証してセキュリティを向上させるために、信頼できる実行環境の証明とゼロ知識証明を組み合わせたシステムである Multiproofs を導入しました。

Beryl は、Azul のメインネットの立ち上げから約 4 週間後に Sepolia テストネットに到達しました。 Base attributes the shortened release cycle to its decision in February to move away from a shared dependency on Optimism’s OP stack and operate on its own integrated technology stack.