Slack.Webhooks (nuget): Even simpler integration with Slack's Incoming/Outgoing webhooks API for .net        ### IMPORTANT        On Feb 19th 2020 Slack will end support for TLS version 1.0 and 1.1. This means you may (depending on your .NET version) need to force the use of TLS1.2.        If you receive an error stating that "The underlying connection was closed:" it's quite possibly a TLS issue. You can work around this by setting the default TLS version using the following:        ```csharp       System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;       ```
Keywords: Slack|Webhooks