Bitcoin wallet Electrum released version 4.8.4 on Nov. 6 as its 15th-anniversary edition and fourth security update since August. The release fixes a Lightning Network vulnerability in which malformed onion messages from any source could disconnect Electrum from channel peers; Electrum said the wallet will discard incoming onion messages until a practical use case is implemented. It also addresses wallet-freezing and transaction-processing problems, crashes affecting desktop and Android users, and failures involving recovery of some mnemonic phrases created before version 2.0. Electrum released version 4.8.3 in late October to fix a high-severity vulnerability that had already been exploited in the wild.