Logic Pro X is the most advanced version of Logic ever. Sophisticated tools for professional songwriting, editing, and mixing are built around a modern interface thatís designed to get creative results quickly and also deliver more power whenever itís needed. Logic Pro X includes a massive collection of instruments, effects, and loops, providing a complete toolkit to create amazing-sounding music.
What's New in Version 10.2.1

This update contains numerous fixes and enhancements including:

- New multi-threading feature improves performance when processing multiple live channels.
- Faster playback responsiveness when previewing Apple Loops and performing region edits.
- Flex Pitch editing can be performed within the Tracks area using a Piano Roll interface.
- A collection of 30 plug-ins have been redesigned to add Retina support and improve usability.
- Numerous improvements to Alchemy including Apple Loops support and 11 new spectral effects.
- Improved reliability when downloading additional content.
- Additional content can be downloaded directly from the Sound Library and Apple Loops browsers.
- Drum Machine Designer supports drag and drop of multiple audio files.
- The Step Editor can automatically create lanes to display all MIDI events in a region.
- New export option allows you to to create stems from multiple selected tracks.
- Improved VoiceOver support.