Microsoft released Exchange 2007 Update Rollup 4 last week and due to the office craziness I didn’t get a chance to talk about it. First of all, Exchange updates starting with Exchange 2007 are cummulative, meaning they include all public hotfixes/patches since RTM. Bigger download, but hopefully a more up-to-date server in many ways.
We rolled this out midweek and have not found any issues with it yet. We have actually been pretty happy with it because we have a number of users in both New Zealand and Western Australia, who tend to be ignored by Microsoft when it comes to DST updates. Well, not anymore. The patch for HMC 4.0 is in there as well.
Gotta hand it to the Exchange team, they keep on kicking out solid stuff, even if it expects 8 TB of ram for a 100 user site 
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