Update Rollup 4 for Exchange 2007 Service Pack 3 is now available for direct download (see below for links). It will be made available via Microsoft Update on August 11.
Of the 20 included fixes, the Exchange Team would like to highlight the following fixes
(some KB articles might not be available in your region yet);
- KB2531208 You cannot synchronize a folder hierarchy by using Outlook for Mac 2011 in an Exchange Server 2007 SP3 environment
- KB2528437 EWS applications cannot connect to Exchange Server 2007 servers after you make changes on accepted domains
- KB2521063 You are incorrectly displayed as a meeting organizer after you synchronize the meeting by using your mobile device in an Exchange Server 2007 environment
The next update rollup is scheduled for release in August 2011.
(Rollup 5 for Exchange 2010 SP1 will then also be released.)