Support for Skype for Business Server 2015 and Skype for Business Server 2019 ends today

Today , October 14, 2025, Skype for Business Server 2015 , Skype for Business Server 2019 , Skype for Business 2016 (client), and Skype for Business 2019 (client) reach end of support. It’s therefore critical to upgrade now to remain supported and secure. Microsoft will no longer provide technical support, meaning some problems may occur with these products. Users will no longer receive: Bug fixes for issues that may impact the stability and usability of the server or clients. Security fixes…