Just as Santa's elves were busy busy busy getting ready for
Christmas, so too were the developers at Microsoft on the Exchange
team. Just in time for the slow period between Christmas Day and
the first week of the new year, Microsoft has released quarterly
updates for not one, nor two, nor even three versions of Exchange
Server, but for all four still under any type of support
whatsoever. Let's take a look to see what's new, what's
improved, and what you need to do now.
Office 365 and Exchange Online Archiving Customers
It's worth reminding those of you connecting your Exchange
on-prem environments to Office 365, whether in full hybrid
coexistence or merely for archiving, that you need to be at N, or
N-1, on your Exchange on-prem servers.
This time around, there are no Active Directory Schema updates
required. If you're current through the previous CUs, then you
can let the AD guys relax this time around.
Time zone updates
All of these updates include the latest global changes to time
zones, including changes to Daylight Savings Time.
Exchange 2016 Cumulative Update 4 (CU) makes some changes to
both admin and end user experience, so look sharp. For starters,
let's look at admin changes. First, if you are running Server
2016, you need to first apply the fix in https://support.microsoft.com/kb/3206632 to
your server, or CU4 will not install. This fixes an issue with IIS
crashing when DAGs are formed, and is a prerequisite for CU4.
Second, if you are building a new server with this download, note
that instead of installing the Desktop Experience on your servers,
Exchange 2016 CU4 new installs will deploy the Media Foundation
instead. That means your admin GUI experience will be different on
new servers going forward. Of course, you can manually add the
Desktop Experience yourself for consistency if you wish.
End users will have an updated Outlook Web App experience with a
new frame and new location for the edit controls, at the bottom.
And yes, I know it's supposed to be called "Outlook on the
web" now but not all change is good. Moving controls that have
been in the same location for five versions now is another one of
Exchange 2010 Service Pack 3 Update Rollup 16 includes security
fixes for what you must remember is an N-2 product in extended
support. Just like admins still on 2007, you need to be thinking about your next upgrade, though
you do have more time than they do. Also, this RU includes some
caveats you should be aware of.
If you have installed any interim
updates since CU14, you need to uninstall those first.
If you have customized your OWA
files, back them up, as this will overwrite those changes!
Well, if you are reading this because it's actually relevant
to you, then I have to first remind you that Exchange 2007 is going
to be END OF LIFE very soon, as in 2017-04-11. That's barely
more than three months from now, so if you still have Exchange 2007
in your environment and haven't got a plan to deprecate it by
then, you're in trouble. Check outour post on options to upgrade from
2007and get started now, because you really
have very little time remaining!
As with any update, you want to deploy these in your test
environment before moving to product, just in case there are any
issues, and you also want to ensure all of your servers are running
on the same patch level as soon as you can. With nothing else to do
until all the other people get back from their holidays, maybe you
can patch during the day this time and not have to stay up late
Saturday night. Fingers crossed for you!
The content of this article is intended to provide a general
guide to the subject matter. Specialist advice should be sought
about your specific circumstances.
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