Since its introduction a few years ago, Propellerhead Reason has become extremely popular. Version 3.0 was released a short time ago, but there’s already a free update available for registered users.
Reason 3.0.4 is a maintenance update that resolves a few issues with exporting compositions as an audio file, missing icons in Mac OS X 10.4 (Tiger), MIDI import functionality, combined note handling and cross-browsing. Some songs produced in Reason 2.5 could not be loaded in 3.0, and this problem has been fixed.