We just uploaded Carbide Create Build 289.

It includes the following:

New Features

Mirroring/flipping.

Rounded, tee, and dogbone corners for rectangles.

Changed Save to separate Save / Save As.

Added filename to title bar.

Bug fixes

Don’t reset toolpath parameter when editing a tool.

Fixed slow plunge. The toolpath now rapids down to retract plane, then plunges from there.

You can download this version from the Carbide Create download page