Release v1.9.1: Update version numbers
diff --git a/deploy/postflight.sh b/deploy/postflight.sh
index ad5c7f0..019ed6f 100755
--- a/deploy/postflight.sh
+++ b/deploy/postflight.sh
@@ -2,7 +2,7 @@
# $0 - Script Path, $1 - Package Path, $2 - Target Location, and $3 - Target Volumn
-MADLIB_VERSION=1.9
+MADLIB_VERSION=1.9.1
find $2/usr/local/madlib/bin -type d -exec cp -RPf {} $2/usr/local/madlib/old_bin \; 2>/dev/null
find $2/usr/local/madlib/bin -depth -type d -exec rm -r {} \; 2>/dev/null
diff --git a/doc/mainpage.dox.in b/doc/mainpage.dox.in
index d8b6b4c..00ef546 100644
--- a/doc/mainpage.dox.in
+++ b/doc/mainpage.dox.in
@@ -17,6 +17,7 @@
<li><a href="https://mail-archives.apache.org/mod_mbox/incubator-madlib-user/">User mailing list</a></li>
<li><a href="https://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/">Dev mailing list</a></li>
<li>User documentation for earlier releases:
+ <a href="../v1.9/index.html">v1.9</a>,
<a href="../v1.8/index.html">v1.8</a>,
<a href="../v1.7.1/index.html">v1.7.1</a>,
<a href="../v1.7/index.html">v1.7</a>,
