From the “Version History” for 7.0.5:
R-7265 AUDIO: The sound quality of VariAudio has been improved VariAudio segment transitions no longer create audible glitches.(please see known issues and solutions for details).
R-7586 AUDIO: After pitching scales in VariAudio the audio updates faster than before.
R-7384 AUDIO: Clicking on Undo using VariAudio no longer renders the application unreliable.