updating readme

README.md

@@ -4,8 +4,6 @@
 |---|---|
 |main|[![Build status](https://azfunc.visualstudio.com/Azure%20Functions/_apis/build/status/azure-functions-core-tools?branchName=main)](https://azfunc.visualstudio.com/Azure%20Functions/_build/latest?definitionId=11&branchName=main)|
 |in-proc|[![Build status](https://azfunc.visualstudio.com/Azure%20Functions/_apis/build/status/azure-functions-core-tools?branchName=in-proc)](https://azfunc.visualstudio.com/Azure%20Functions/_build/latest?definitionId=11&branchName=in-proc)|
-|v3.x|[![Build status](https://azfunc.visualstudio.com/Azure%20Functions/_apis/build/status/azure-functions-core-tools?branchName=v3.x)](https://azfunc.visualstudio.com/Azure%20Functions/_build/latest?definitionId=11&branchName=v3.x)|
-|dev|[![Build Status](https://azfunc.visualstudio.com/Azure%20Functions/_apis/build/status/azure-functions-core-tools?branchName=dev)](https://azfunc.visualstudio.com/Azure%20Functions/_build/latest?definitionId=11&branchName=dev)
 |v1.x|[![Build status](https://azfunc.visualstudio.com/Azure%20Functions/_apis/build/status/azure-functions-core-tools?branchName=v1.x)](https://azfunc.visualstudio.com/Azure%20Functions/_build/latest?definitionId=11&branchName=v1.x)|
 
 # Azure Functions Core Tools
@@ -16,10 +14,6 @@ The Azure Functions Core Tools provide a local development experience for creati
 
 **v1** (v1.x branch): Requires .NET 4.7.1 Windows Only
 
-**v2** (dev branch): Self-contained cross-platform package
-
-**v3**: (v3.x branch): Self-contained cross-platform package
-
 **v4**: (main branch): Self-contained cross-platform package **(recommended)**
 
 ## Installing