From Andrei:

Update release notes


git-svn-id: http://root.cern.ch/svn/root/trunk@24894 27541ba8-7e3a-0410-8455-c3a389f83636

geom/doc/v522/index.html

@@ -2,3 +2,11 @@
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 <h3>Geometry</h3>
+Improvement of the standard overlap checker. The previous method was checking points on the visual mesh of volume shape against all possible overlapping partners.
+The new method checks more points (currently 1000, in future configurable) on the volume outline or surface. This minimizes the number of non-detectable overlap
+configurations.<br>
+The interface to activate the new checking method is the same as before:<br><br>
+   <em>gGeoManager->CheckOverlaps(ovlp);</em><br>
+   where <strong><em>ovlp</em></strong> is the overlap tolerance (default 0.01 cm)<br><br>
+An example of overlap that was not detected before but is now:<br><br>
+<img src="geom_prev3.gif" width="585" height="638" border="0" alt="">