Electrum 4.5.0 Release

Core Improvements:

• Introduced ConfigVars and refactored SimpleConfig (#8454)
• Implemented incremental wallet file writes (#8493)
• Enhanced payment identifier handling (#8462)
• Added option to merge duplicate outputs (#8474)

Lightning Enhancements:

• Introduced support for hold invoices (1acf426)
• Added bundled payments capability (c4eb7d8)
• Improved MPP functionality (#7987)
• Implemented new flow for normal submarine swaps (fd10ae3)
• Enhanced large channel support (40f2087)

QML GUI (Android) Updates:

• Migrated to Qt6 (#8545)
• Added coin/UTXO view to address list (cf91d2e)
• Introduced message signing & verification (e5e1e46)
• Implemented Lightning Address and OpenAlias support (03dd38b)

Qt Desktop GUI Improvements:

• Redesigned wizard implementation
• Added notes tab for encrypted wallet file storage (d691aa07)
• Introduced “Send change to lightning” option for on-chain payments (649ce97)

Hardware Wallet Support:

• Trezor: Added multiple change output support (#3920)
• Trezor: Implemented external pre-signed input support (#8324)
• Bitbox02: Updated to version 6.2.0 (#8459)

New Features:

• Swapserver plugin introduced (#8489)
• Configurable number of log files to keep (5e8b14f)

Security Enhancements:

• Added warnings for non-default sighash usage (#8687)
• Updated bundled zbar for security fixes (#8805)