Do not analyze synthetic classes (#668)

diff --git a/org.jacoco.doc/docroot/doc/changes.html b/org.jacoco.doc/docroot/doc/changes.html
index 33fa7de..4a02b4e 100644
--- a/org.jacoco.doc/docroot/doc/changes.html
+++ b/org.jacoco.doc/docroot/doc/changes.html
@@ -20,6 +20,12 @@
 
 <h2>Snapshot Build @qualified.bundle.version@ (@build.date@)</h2>
 
+<h3>New Features</h3>
+<ul>
+  <li>Synthetic classes are filtered out during generation of report
+      (GitHub <a href="https://github.com/jacoco/jacoco/issues/668">#668</a>).</li>
+</ul>
+
 <h3>Fixed Bugs</h3>
 <ul>
   <li>Don't insert stackmap frames into class files with version &lt; 1.6,