Hedera to Update JavaScript SDK on June 2nd

Name: JavaScript SDK Update
Start: 2025-06-02T00:00:00Z
End: 2025-06-03T00:00:00Z

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Hedera will retire the MyHbarWallet gRPC-Web proxies for mainnet, testnet and previewnet on June 2nd. From this date, browser-based dApps that rely on these proxies must migrate to alternative connectivity solutions to maintain functionality.

The change accompanies an update to the JavaScript SDK, which will no longer support the outgoing proxy architecture. Developers are advised to adjust their applications in advance to avoid service disruption.

Event date: June 2, 2025 UTC

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