I have recently uploaded an installer for the latest development version 0.9.5.

http://www.cambam.co.uk/downloads/CamBamPlus-beta0.9.5a.msi

This is an early, largely untested release! For production work or if you are still evaluating, you should stick with the latest stable release until this version has been thoroughly tested.
Saying that, this version has been out for a week now and no major issues have been reported.

Unfortunately, I haven't managed to get the improved 3D surfacing or GUI improvements in this release as I had planned, but it does contain a number of bug fixes and improvements, so I figured it best to get this release out while I continue to work on the other functionality.

This release does include the first draft of the OpenGL drawing view. It is disabled by default. To enable it, under Tools - Options, there is a new Display - DisplayMode property. Change this to OpenGL then close and restart CamBam.

For a full list of fixes and changes, go Help - Contents and look in the 'What's New?' section.
If this only has 0.9.4 changes then the installer may not have overwritten the help files so uninstalling CamBam and reinstalling may fix this.

As always, I hope you enjoy this release and any suggestions, feedback or bug reports are very welcome.

Andy Payne [10bulls]

Great improvement. The zooming and 3d rotation is quite snappy under openGL mode. I also noticed that when ctrl-T to generate toolpaths, you can see the toolpaths form.