This update introduces server-side support in Microsoft Skype for Business Server 2015 for TLS 1.2 connections from Skype Room Systems v2 (Microsoft Teams Rooms or SRSv2) and Surface Hub devices.
Both SRSv2 and Surface Hub devices also require client updates to support TLS 1.2 connections. For more information, see the following notes.
Surface Hub client support for TLS 1.2 shipped on May 28, 2019: Update for Team edition, based on KB 4499162 (OS Build 15063.1835). For updates and more information, see Surface Hub update history. If you disable TLS 1.0 or 1.1 in your on-premises environment before you update Surface Hubs, the devices can no longer sign in.
Microsoft Teams Rooms (previously known as Skype Room System v2) clients require version 188.8.131.52 or a later version. For more information, see Microsoft Teams Rooms Release notes.
SRSv2 devices are now fully supported if TLS 1.0 or 1.1 is disabled in your Skype for Business Server 2015 on-premises environments.
To get this update, install the May 2019 cumulative update 6.0.9319.548 for Skype for Business Server 2015, Web Components Server.
For the necessary guidance to prepare for and implement disabling TLS 1.0 and 1.1 in your Skype for Business Server 2015 environment, see the following TechNet topics: