Today we've released version 9.1 of PTGui and PTGui Pro. Several handy new
features have been added in this release:
The new Align to Grid tool makes it easy to stitch gigapixel panoramas using a motorized panoramic head. Also, image alignment for wide angle images (and fisheye images in particular) has been improved. Further there are lots of usability improvements such as more context menus, a new 'ghost cursor' and the ability to generate control points in a rectangular area.
For an overview of the new features see What's new in PTGui 9.1.
To download the new version choose Help -> Check for Updates or see the Download page.