XRP Ledger Activates Fix for Delegated Token-Burning Flaw

The XRP Ledger activated a protocol change Nov. 4 that addresses a delegated token-burning flaw and repairs automated market maker and vault accounting, while leaving the network’s lending proposal pending. The fixCleanup3_4_0 amendment took effect at 9:52 a.m. ET (14:52 UTC), in ledger 108,112,129. The PaymentBurn permission is used to burn fungible tokens or Multi-Purpose Tokens (MPTs). Under the earlier rule, a delegate with that permission could sometimes create fungible tokens; the new rule rejects PaymentBurn payments that cross a zero balance. The amendment also addresses an AMMClawback rounding case that could burn a holder’s liquidity-provider tokens while recovering zero. It adds precision and rounding corrections for VaultDeposit, VaultWithdraw and VaultClawback operations involving single-asset vaults. The update does not activate institutional credit.

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