Electrum released version 4.8.2 on Sept. 11 fixing a Lightning backup defect affecting certain Bitcoin wallets. Older backups from wallets with non-deterministic Lightning keys lack the information needed to reclaim funds from anchor channels after a remote close. The fix requires users to create fresh backups, as upgrading alone cannot guarantee recovery of key material already lost. PR 10851 repaired wallet-file exports by retaining a randomly generated Lightning private key that the export previously deleted.
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