getting ready for new release 8.4.0

Author: gr5

RevisionHistory.html

@@ -10,6 +10,14 @@
     <h1>DFTFringe Version History</h1>
     <ul>
 
+        <li>Version 8.4.0</li>
+        <ul>
+            <li>Ronchi and Foucault displays have new circular grid feature to measure zones better (right click on ronchi)</li>
+            <li>Ronchi compare now has blink mode that switches between 2 ronchis (first select at least 2 ronchis, then right click on the ronchi view, then select "compare" button, then "blink" button)</li>
+            <li>Can read Wavefront Pro format wavefront files (.npz files)</li>
+            <li>Fixed bug in subtract wavefront feature introduced in version 7.4.0 where sometimes it subtracts the wrong wavefront (but correctly showed you what it did on the right side).  Bug happened on A-B if B is farther down in the wavefront list than A.</li>
+        </ul>
+
         <li>Version 8.3.2</li>
         <ul>
             <li>Fixed bug introduced in 8.3.1 in Ronchi Foucault where it was always doing autocollimate mode</li>