A new cumulative patch has been released for SKYPE for Business server 2015.
Version number for Core components is 6.0.9319.537
To find your current patch level run this command on a SFB server
This patch contains a very long list of fixes in alot of different areas – and also a brand new feature allowing your organisation to make the Move to Microsoft Teams in on step, like it is possible in Skype for Business Server 2019.
To download the CU go to: https://support.microsoft.com/en-us/kb/3061064
For installation instructions go to:
The Fixes included in this CU are: