Basis, coinbase‘s (NASDAQ:COIN) The Ethereum Layer 2 network is set to enable the second major network upgrade known as. BerylComing to the mainnet on June 25, 2026. The upgrade is currently distributed to: Basic Sepolia testnet introduces B20 local token Standard while providing improvements in withdrawal efficiency and node performance.
This is an important step forward / turning point before azul upgrade focused on protocol simplifications and multiple proof systems.
Beryl is positioning Base as a stronger platform for on-chain asset issuance, especially stablecoinsreal-world assets (RWAs), tokenized stocks, and other long-tail tokens.
Developers and issuers will benefit from streamlined processes that reduce the need for custom smart contract development and auditing.
The basis for the upgrade is the B20 token standard.
Unlike traditional ERC-20 Tokens created through deployable smart contracts, B20 tokens are implemented as Rust pre-builds; native code is embedded directly into Base’s node software.
This approach enables faster execution, lower gas costs, and more efficient operations while maintaining full compatibility with existing ERC-20 tools, wallets, decentralized exchanges, explorers, and indexers.
B20 includes a comprehensive built-in “Publisher Toolkit” with compliance-focused features audited by Base and Spearbit.
These include role-based access controls for printing, writing, pausing, and metadata updates; optional feed covers; detailed transmission policies that may restrict effectiveness by sender, receiver or executor; transfer notes to add compatibility notes; and a freeze-and-seize mechanism that allows assets held by blocked addresses to be burned.
The standard supports two variables tailored to different use cases: The entity variable offers configurable decimals (usually 6-18), additional metadata, on-chain event announcements, and rebasing support.
The stablecoin variant uses fixed 6 decimal precision and allows issuers to declare the fiat currency code.
These features make B20 particularly attractive to corporate issuers seeking efficient, compliant tokenization without creating complex structures. infrastructure from scratch.
Future improvements are expected to enable gas payments in B20 tokens and further performance optimization.
Beyond the new token standard, Beryl brings two other important improvements.
First, it shortens the standard withdrawal delay from Base to Base. Ethereum seven to five days along the single-evidence pathway (the most common pathway).
Faster precision increases capital efficiency for bridge providers and improves the overall user experience without requiring most users to take any action via the canonical bridge.
Second, the upgrade includes Reth V2, Base’s execution client; This reduces disk usage across node types and improves overall performance and efficiency.
Node operators are recommended to upgrade to the latest software versions before activation to take advantage of these optimizations.
The upgrade timeline aligns with Base’s rapid development pace;Beryl It follows Azul by about four weeks and forms part of a wider series of protocol improvements.
An upgrade codenamed Cobalt is planned for September, promising more advancements like local account abstraction features.
Beryl upgrade reflects BasisIncreasing focus on becoming a leading destination for real-world asset tokenization and efficient on-chain finance. By embedding token issuance capabilities natively on-chain, Base aims to: lower Obstacles for issuers securityIts scalability and developer-friendliness have led to the adoption of this feature.





