Improve error message displayed when processing instrumented classes (#703)
diff --git a/org.jacoco.doc/docroot/doc/changes.html b/org.jacoco.doc/docroot/doc/changes.html
index ce2475c..5299b4e 100644
--- a/org.jacoco.doc/docroot/doc/changes.html
+++ b/org.jacoco.doc/docroot/doc/changes.html
@@ -38,6 +38,13 @@
(GitHub <a href="https://github.com/jacoco/jacoco/issues/672">#672</a>).</li>
</ul>
+<h3>Non-functional Changes</h3>
+<ul>
+ <li>Improved error message when already instrumented classes are used for
+ instrumentation or analysis
+ (GitHub <a href="https://github.com/jacoco/jacoco/issues/703">#703</a>).</li>
+</ul>
+
<h2>Release 0.8.1 (2018/03/21)</h2>
<h3>New Features</h3>