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README.md

@@ -50,6 +50,11 @@ The Bot Framework SDK v4 is an [open source SDK][1a] that enable developers to m
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 ### Bot Framework SDK v4 (v4.6 GA)
+- Microsoft Teams support | [docs] | [C# sample] | [JS sample] :: Bot Framework SDK v4.6 adds native support for building Teams bots so that you don't have to install Teams extensions to develop bots. A bot behaves differently depending on what kind of conversation it is involved in. Bots in Teams support several kinds of conversations:
+  - `teams`: Also called channel conversations
+  - `personal`: Conversations between a bot and a single user
+  - `groupChat`: A conversation between a bot and 2 or more users
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 ### The Bot Framework SDK v4 - (version 4.7 preview)