<p>Exchange Server 2013 Cumulative Update 2 (CU2) became available on Tuesday, in keeping with Microsoft's new update release cycle for Exchange 2013.</p><p>The updates for Exchange 2013 are released quarterly. Microsoft released CU1 for Exchange 2013 in April, and explained its new cumulative update policy earlier this year. Essentially, Cumulative Updates are full server releases now. They get delivered every three months via the Microsoft Download Center and arrive as fatter files now since they are full server installations.</p><p>New in CU2A big part of this CU2 release was supposed to be its expanded support for 100 databases per server, instead of 50 databases per server, for the Enterprise edition of Exchange 2013. Microsoft had played up this expansion last month, signaling that it was making the change in reaction to customer complaints about the limitation. However, customers may just be getting an expanded capacity in name only, according to the announcement of CU2 by Ross Smith IV, principal program manager for the Exchange customer experience.</p><p>"As mentioned previously, Exchange 2013 RTM CU2 increases the per-server database support from 50 databases to 100 databases in the Enterprise Edition of the product," Smith wrote. "Please note that this architectural change may not provide any additional scalability as CPU may be a bottleneck, thereby limiting the number of mailboxes you can deploy per-server."</p><p><a href="http://rcpmag.com/articles/2013/07/09/cu2-exchange-server-2013.aspx">Keep reading...</a></p>