== Version 4 release notes ==

The main change in this version is the inclusion of a plugin architecture.  This allows end users to write there own additions to the program and load them at runtime. For more information see the [wiki:plugin PlugIn] page.

Some built in plugins are supplied, including for symmetrising, chimeric transforms, colour calibration and enhancing / repairing templates.  To enable these you need to load the plugins at runtime.

Other changes include adding some more options from the Tcl/Tk-C++ version, such as different warping options, different wavelet filter options, overlap control (to stop warping "folding") and some additional work on the ORASM (and similar) feature detection / tracking.