NI have announced a new free update is available for Kontakt — version 5.1.

This update provides the following new features, fixes and improvements:

• Added support for Avid Audio eXtension (AAX Native 32-bit)

• New ‘Jump’ Amplifier effect from GUITAR RIG added to the range of KONTAKT effects

• Plug-in migration for Mac OS X Audio Units – KONTAKT automatically updates to newest version on projects created with older versions of the software

• Mac OS X 10.8 RTAS: Fixed crash on startup

To install the update, please start the NI Service Center. Open the ‘Update’ tab, make sure the checkbox for KONTAKT is checked, and click the ‘Download’ button. When the download is finished, unzip the files and run the installer.