Update Rollup 4 for Exchange Server 2010 is released

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Update Rollup 4 for Exchange Server 2010 RTM (KB 982639) is now available to download and install.

KB 982639 lists all the fixes included in this rollup. Here are some of the product improvements and critical bug fixes.

Here are the few of fixes, I would like to highlight as Exchange Developer perspective:

  • KB 980852 The RpcClientAccess process on an Exchange Server 2010 server crashes when you access a mailbox by using a MAPI application
  • KB 980353 A MAPI application that is used to access Exchange Server 2010 mailboxes crashes when the application accesses an address book
  • KB 980364 The Exchange Transport service on an Exchange Server 2010 server crashes when a certain message is processed

KB 982639 has more details about this release and a complete list of all fixes included in this worthwhile rollup.

To download and to install Update Rollup 4 for Exchange Server 2010 RTM, visit the following Microsoft Update Website: https://update.microsoft.com

Note Microsoft Update does not detect Update rollups on Exchange Server 2010 Mailbox servers that are part of a database availability group (DAG).
You may want to deploy Update Rollup 4 for Exchange Server 2010 RTM to multiple computers that are running Exchange Server 2010 RTM. Or, you may want to deploy Update Rollup 4 for Exchange Server 2010 RTM to Mailbox servers that are part of a database availability group (DAG). The update rollup is also available from the Microsoft Download Center.
The following file is available for download from the Microsoft Download Center: Download the Exchange2010-KB982639-EN-x64 package now.