On January 4, 2011 cPanel announced that cPanel & WHM version 11.28 is now available for the STABLE tier. Build 11.28.64 is available for immediate installation or upgrade to the STABLE, RELEASE, CURRENT and EDGE tiers.

Further information, please review the full change log and the version 11.28 release notes.
 
11.28 Change Log:
http://docs.cpanel.net/twiki/bin/view/AllDocumentation/ChangeLog/CPanelVersion1128
 
11.28 Release Notes:
http://docs.cpanel.net/twiki/bin/view/AllDocumentation/11_28ReleaseNotes