Three of the 13 fixes relate to crashes that may occur in the Edge Transport service, so customers having trouble with that service will find help in this rollup.
Since there are no security or data loss fixes in Rollup 5, it probably won’t be a high priority for immediate deployment, said Rob Sanfilippo, an analyst with Directions on Microsoft, an independent analyst and research firm in Kirkland, Wash.
That is especially true for customers who are cautious about installing rollup updates following problems with Microsoft’s updates this year. In March, Microsoft re-released Exchange Server 2007 SP3 Update Rollup 3 to correct an issue that could have led to database corruption.
But, it is likely that Microsoft uses additional scrutiny on its rollup releases after multiple problems. “The probability that RU5 is stable may be higher than with previous rollups,” Sanfilippo said.
Update Rollup 5 fixes annoyances such as the “some items cannot be deleted" error messages users get when trying to delete or modify an email message in an Exchange Server 2007 public folder.
It also fixes problems where incorrect sent times show up in the email message body when replying or forwarding messages using the Exchange Web Services (EWS) application. Other issues resolved with Rollup Update 5 can be found on Microsoft’s support website.
Update Rollup 6 for Exchange Server 2007 Service Pack 3 is currently scheduled to release in April 2012 -- the same month that Microsoft ends mainstream support for Exchange 2007. Extended support ends in April of 2017.
During the Extended Support phase of the product, Microsoft provides free security updates to all customers and non-security updates to customers with paid service contracts.
“Exchange 2007 has been stabilized after three service packs (and possibly an upcoming fourth),” Sanfilippo said. “So, Exchange 2007 customers may not feel an urgency to upgrade before considering the next major release of Exchange -- which has not been announced, but will probably come in 2013.”