Обсуждение на форуме тут: http://www.forum.nobat.ru/index.php?topic=6242.0
Что нового в 4.2.24.1 по сравнению с 4.2.23.0:
[ - ] Fixed a spell-checker related AV on exit;
[ - ] The progress form about loading the antivirus plugins did overlap with the splash screen;
[ - ] Significantly reduced CPU load during POP3 sessions. This significantly improves speed of retrieving messages on computers with slow CPU and fast connection (e.g. Ethernet) to the POP3 server.