XRP Ledger Turns On Fix for Delegated Burn Permission That Could Mint New Tokens

AI summary of the source article

The XRP Ledger activated the fixCleanup3_4_0 amendment on Nov. 4, fixing a flaw in the PaymentBurn permission that allowed delegates to mint new fungible tokens. The ledger now rejects PaymentBurn payments crossing a zero balance.

Why it matters

For 27 days, delegation was live on mainnet while the burn permission could still create tokens, and the only safeguard was a line in the documentation asking issuers not to grant it. With the amendment enabled, issuers that want to hand burning duties to a separate account no longer have that caveat attached to the permission.

Key facts

• The fixCleanup3_4_0 amendment activated on Nov. 4 at 14:52 UTC after holding over 80% validator support for two consecutive weeks.
• Prior to the fix, the PaymentBurn permission in certain circumstances allowed delegates to mint new fungible tokens, including trust line tokens and multi-purpose tokens.
• The ledger now rejects any PaymentBurn payment that crosses a zero balance, while native XRP supply was not involved.