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Base to launch Beryl upgrade with B20 token standard on June 26

Base to launch Beryl upgrade with B20 token standard on June 26

Base plans to activate the Beryl hard fork on June 26 after a Sepolia testnet rollout, while Binance will temporarily suspend Base token deposits and withdrawals to support the upgrade.

RETH

Fact Check
Official Base documentation confirms every substantive element of the claim: the Beryl upgrade, the B20 native token standard, shortened withdrawal finality (7->5 days), the Reth V2 upgrade, and a prior Sepolia testnet rollout. The date is the only minor discrepancy: official docs list mainnet activation as 2026-06-25 18:00:00 UTC, which corresponds to June 26 in Asian timezones used by the Chinese-language source outlets. Thus the 'June 26' framing is reasonable rather than false. PANews and BlockBeats corroborate, and the original Base X post is cited by the coverage.
Summary

Base said it will activate the Beryl hard fork on mainnet on June 26, following a Sepolia testnet launch on June 19 and revising an earlier June 17 target. The Coinbase-backed Layer 2 network said the upgrade will introduce the B20 native token standard, reduce single-proof withdrawal finality to five days from seven, and move to Reth V2, which it said cuts disk usage by 50% and lifts throughput by 33%. Binance separately said it will suspend Base token deposits and withdrawals on June 26, 2026 at 01:00 Beijing time to support the planned upgrade and hard fork, scheduled around block height 1,782,410,400 about an hour later.

Terms & Concepts
  • B20 native token standard: A Base-native token format intended to support assets issued and used on the network.
  • hard fork: A blockchain network upgrade that changes protocol rules and requires nodes or supporting services to adopt the new version.
  • withdrawal finality: The point at which a withdrawal is considered fully confirmed and irreversible.