this version only works with 4.3 (some dao file names have changed in 4.4)

info.xml

+<?xml version="1.0" encoding="utf-8"?>
 <extension key="org.civicrm.module.cividiscount" type="module">
 <downloadUrl>
 https://github.com/dlobo/org.civicrm.module.cividiscount/zipball/v2.2
@@ -21,11 +22,10 @@ https://github.com/dlobo/org.civicrm.module.cividiscount/
 <email>info@civicrm.org</email>
 </maintainer>
 <releaseDate>2013-09-21</releaseDate>
-<version>2.2</version>
+<version>2.3</version>
 <develStage>stable</develStage>
 <compatibility>
 <ver>4.3</ver>
-<ver>4.4</ver>
 </compatibility>
 <comments>
 For support, please contact the team on the forums. (http://forum.civicrm.org)