Microsoft warned customers today that Exchange Server 2013 will reach its extended end-of-support (EOS) date 90 days from now, on April 11, 2023.
Exchange Server 2013 was released in January 2013 and has already reached the mainstream end date more than four years ago, in April 2018.
After the extended EOS date is reached, Microsoft will no longer provide technical support and bug fixes for new issues that could impact the servers’ stability or usability.
Time zone updates and security updates to address newly found vulnerabilities impacting servers running Exchange Server 2013 will also no longer be available starting in April.
“Exchange Server 2013 will continue to run after this date, of course; however, due to the risks listed above, we strongly recommend that you migrate from Exchange Server 2013 as soon as possible,” Microsoft Exchange Product Marketing Manager Scott Schnoll said.
“If you haven’t started your migration from Exchange Server 2013 to Exchange Online or Exchange Server 2019, get going now!”
Microsoft recommends upgrading on-premises Exchange Server 2013 servers to Exchange Server 2019 to keep receiving bug fixes and security updates for new flaws.
However, before deploying new Exchange Server 2019 installations across servers running software quickly reaching EOS, you should ensure that your network, hardware, software, and clients meet the requirements.
Windows 7 also stopped receiving extended security updates for critical and important vulnerabilities starting Tuesday. Windows 8.1 also reached EOS the same day.
Earlier this month, Microsoft reminded Windows admins that the extended support for all editions of Windows Server 2012 and Windows Server 2012 R2 would also end on October 10.