Exchange 2019 cu4 install#

Noted that an Exchange 2019 install requires Windows Server 2019. When multiple Exchange versions co-exist in a single Active Directory forest, the cumulative update matching the latest version of Exchange deployed should be used to run /PrepareAD In order to apply these changes, a directory admin will need to run the cumulative update setup program with the /PrepareAD parameter. This is covered in KB 4490059 - Reducing permissions required to run Exchange Server by using Shared Permissions Model. Note that there are changes in Exchange EWS functionality with this release, so please review all of the notes contained within the release post.ДЄlso pay attention to Decreasing Exchange Rights in the Active Directory. It also resolves some vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2019-0686 and Microsoft Common Vulnerabilities and Exposures CVE-2019-0724. For more information, see Security Advisory ADV190004. This update provides a security advisory in Microsoft Exchange. Exchange 20 have the same servicing methodology.Дetails for the release are contained in KB 4471391. CUs are a complete installation of Exchange 2019 and can be used to install a fresh server or to update a previously installed one. Exchange 2019 CU1 has been released to the Microsoft download centre! Exchange 2019 has a different servicing strategy than Exchange 2007/2010 and utilises Cumulative Updates (CUs) rather than the Rollup Updates (RU/UR) which were used previously.