Microsoft has reminded admins that Exchange Server 2013 is reaching its extended end-of-support (EOS) date in 60 days, on April 11, 2023. The announcement follows two other reminders issued in January and June when the company warned customers to upgrade or migrate their Exchange servers. The first version of Exchange Server 2013 was released in January 2013, and it reached its mainstream end date four years ago, in April 2018. Once the extended EOS date is reached, Microsoft will stop providing technical support and bug fixes for newly discovered issues that could impact the servers’ stability or usability. “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,” the Exchange Team said. “If you haven’t started your migration from Exchange Server 2013 to Exchange Online or Exchange Server 2019, get going now!”