Microsoft extends support through limited security updates to help legacy Exchange and Skype users finish their migrations.
Support deadline approaching
Microsoft has confirmed that Exchange Server 2016 and 2019, along with Skype for Business 2015 and 2019, will officially reach end of support on Oct. 14, 2025.
In response to customer feedback, the company is offering a one-time, six-month Extended Security Update (ESU) program prolonging coverage through April 14, 2026.
This extension will