为严格遵守国际安全标准，以及更好地保护用户隐私数据，Webex Meetings将于2018年10月1日进行TLS1.2（安全传输层协议1.2）的安全策略升级。此次升级适用于Webex在PC端和移动端的所有应用程序、Webex的网页版会议、以及使用API的第三方应用程序。
.NET:
The current version of the .NET SDK (v3.2.1) uses .NET Framework 4.0. We are migrating the .NET SDK (.NET SDK for QuickBooks Online V3.2.1) to Framework 4.6.1 to proactively support TLS 1.2.
After the mid-August 2017 .NET SDK release, the SDK will only support Framework 4.6.1.
| Are you using the .NET SDK? | Action required: |
| Yes | If you are a .NET SDK developer, move your .NET application to Framework 4.6.1 and the latest SDK by Dec 31, 2017 to support TLS 1.2. |
| No | If you are not using the .NET SDK, move your .NET application to Framework 4.6.1 by Dec 31, 2017 to support TLS 1.2. |
| .NET Framework | Default TLS version supported | Timing |
| 4.0 | 1.1 | July 31, 2017 |
| 4.5 | 1.1 is default, can be set to 1.2 | July 31, 2017 |
| 4.6.1 | 1.2 | December 31, 2017 |
