Update open source static analyzer build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141943 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/www/analyzer/release_notes.html b/www/analyzer/release_notes.html
index 4a568f5..311c5ae 100644
--- a/www/analyzer/release_notes.html
+++ b/www/analyzer/release_notes.html
@@ -15,6 +15,19 @@
 
 <h1>Release notes for <tt>checker-XXX</tt> builds</h1>
 
+<h4 id="checker_258">checker-258</h4>
+
+<p><b>built:</b>October 13, 2011<br>
+<b>download:</b> <a href="/checker/checker-258.tar.bz2">checker-258.tar.bz2</a></p>
+<p><b>highlights:</b></p>
+
+<ul>
+  <li>Contains a newer version of the analyzer than the one shipped in Xcode 4.2.</li>
+  <li>Adds a new security checker for looking at correct uses of the Mac OS KeyChain API.</li>
+  <li>Supports ARC (please file bugs where you see issues)</li>
+  <li>Major under-the-cover changes.  This should result in more precise results in some cases, but this is laying the groundwork for major improvements.  Please file bugs where you see regressions or issues.</li>
+</ul>
+    
 <h4 id="checker_257">checker-257</h4>
 
 <p><b>built:</b>May 25, 2011<br>