XRP Ledger (XRPL), the blockchain underpinning XRP, activated the fixCleanup3_4_0 update on Nov. 4 to address a flaw that could allow an account authorized only to delete tokens to issue new ones under certain conditions. The activation occurred at 23:52 Japan time on ledger 108,112,129, according to blockchain analytics site XRPL Win. No exploitation has been confirmed, and the update is intended to prevent token issuance beyond an account's permissions.