Read the release notes here:

For Pa800: http://www.korgpa.com/pa_root/en/news/pa800_200_releasenotes.html

For Pa2X: http://www.korgpa.com/pa_root/en/news/pa2x_200_releasenotes.html

This is probably the last thing you will hear from me the next couple of days

Kind regards,
Tommy