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TON Connect 5.0.0

TON Connect 5.0.0 is now available with improved support for Gram Wallet in Telegram.

dApp developers, please update:

@tonconnect/sdk@5.0.0
@tonconnect/ui@5.0.0
@tonconnect/ui-react@5.0.0

Important: If your dApp uses ton_proof, ensure your implementation follows the documentation, including the get_public_key fallback when the public key cannot be extracted from walletStateInit.

Many Mini Apps currently omit this fallback, which violates the specification and causes authentication to fail with Gram Wallet in Telegram.
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