[Electrum Releases 4.8.3 to Fix Critical Security Issue, Urges All Users to Upgrade Immediately] Bitcoin wallet Electrum has officially announced the release of version 4.8.3, stating that this update fixes a critical security issue and urging all users to upgrade. The official statement indicates that a detailed description of the vulnerability will be released later. Its GitHub changelog lists 4.8.3 as a security update, with a release date of October 23. The Electrum website reminds users to only download software from the official website and verify the GPG digital signature to confirm the source and integrity of the installation package.