<p>Research In Motion has announced that Service Pack 4 for BlackBerry Enterprise Server Version 5 and BlackBerry Enterprise Server Express Version 5 are available for Microsoft Exchange and Lotus Domino.</p><p>This same service pack will be available for BlackBerry Enterprise Server Version 5 for Novell GroupWise in November. Upgrading to the latest BlackBerry Enterprise Server software is an important step towards being prepared for BlackBerry Enterprise Service 10 when it launches with BlackBerry 10.</p><p>For more information on service pack 4, see this post on the BlackBerry business blog.</p><p><a href="http://n4bb.com/rim-releases-service-pack-4-blackberry-enterprise-server-version-5/">Keep reading...</a></p>