Thought it worth explaining some of the intricacies of the June 2012 Cumulative Update packages, especially for those of you waiting for the fix for the Exchange Sync issue where you see duplicated tasks in Outlook, or are having problems with editing categories in PWA if you have renamed projects in your archive. Maicco e-mailed asking about the Exchange fix – and thanks for bringing this to my attention. These two fixes were delivered in the June Cumulative Update cycle, but were not in the ‘default’ Project Server only package http://support.microsoft.com/kb/2598375 , but had their own hotfix - http://support.microsoft.com/kb/2598376 . Issues that this hotfix package fixes Consider the following scenario: You create a user account in Project Web Access (PWA), and you enable Exchange Synchronization for the user account. You create a new plan that contains many tasks in Project 2010. You assign the user account to all the tasks. You save and then publish the plan in Project Server 2010. You log on to the mailbox of the user account that you created to see whether the task list is synchronized. In this scenario, duplicate tasks are created in the task list in Microsoft Outlook. You cannot edit security categories that contain more than 1000 projects when one or more projects in the security categories are archived and then renamed. Just to add to the confusion this hotfix doesn’t explicitly say that it includes the 2598375 fixes – but it does. The reason for the split is that these two fixes needed some globalization changes – which you can see from the full description (Description of the Project Server 2010 hotfix package (Pjsrvwfe-x-none.msp, Pjsrvmui-x-none.msp): June 26, 2012) where MUI is Multilingual User Interface. The file list also lists all of the language files. The complete Project Server 2010 June 2012 Cumulative Update package - http://support.microsoft.com/kb/2598355 – does include everything, and the KB does list both of the KB’s mentioned above. This hopefully clarifies things and explains what the two KBs listed in the full package article are all about. Thanks again Maicco, and in future I’ll keep my eye out for these split CU packages and we will add more details to the notification mail (and I’ll also add an update to the current posting).