Base has picked a date for its next mainnet change.
In a report from The Block, Base says the Beryl upgrade will launch on mainnet on June 25. The upgrade also introduces a new native token standard, labeled B20, and it trims withdrawal delays down to 5 days.
What Beryl changes on Base
The headline features are straightforward, per The Block. The Beryl upgrade adds the B20 native token standard. It also reduces withdrawal delays to 5 days.
That combination matters because it targets two friction points users hit on chain. Token standards affect how assets get represented, transferred, and integrated into wallets and apps. Withdrawal delays affect how quickly capital moves across environments.
B20 native token standard: why “native” is the point
“Native token standard” usually means the platform plans to treat the asset format as first-class within its execution and tooling. The Block’s wording is specific about B20 being the standard that ships with Beryl, so the practical implication is clear. Integrators can align their contracts, wallets, and services around B20 instead of working around older conventions.
The risk side is also real. Any new standard changes compatibility assumptions. If apps lag or support unevenly, assets can fragment by integration. The Block doesn’t provide rollout details, so teams should expect a transition period where not every interface supports B20 the same way.
Withdrawal delays drop to 5 days
The Block also reports a measurable UX shift: withdrawal delays will cut to 5 days after Beryl.
That number is a direct constraint on operational planning. For users and services that depend on moving funds out of Base, shorter delays tighten the feedback loop between on-chain actions and off-chain settlement.
The trade-off is not spelled out in the source text. Still, withdrawal delay changes typically reflect underlying bridge or finality constraints. So while 5 days is an improvement over longer delays, it’s still a delay.
Deployment timing: June 25 activation
Base’s activation date gives developers a window to prepare. The Beryl upgrade activates on mainnet June 25, The Block reports.
For infrastructure teams, the practical work usually shows up in integration testing, contract compatibility checks, and wallet or indexer updates tied to whatever B20 requires. For users, the deadline is simple. Anything that depends on the old setup needs to be ready before June 25.
Key facts from The Block
| Item | What Base announced | When | Source |
|---|---|---|---|
| Beryl upgrade | Introduces B20 native token standard and reduces withdrawal delays | Mainnet June 25 activation | The Block |
| B20 token standard | New native standard launched with Beryl | Activates June 25 | The Block |
| Withdrawal delay | Cut to 5 days | After Beryl activation | The Block |
Base did not provide more technical detail in the supplied excerpt. But even in its minimal form, The Block’s update points to two concrete outcomes: a new way to represent tokens on Base, and a shorter clock for getting funds out.