Azure Functions support for .NET 6.0 is now generally available in Azure Functions runtime 4.0. .NET 6.0 is the latest Long Term Support (LTS) version of .NET. Both the in-process and isolated models are supported in .NET 6.0 Azure Functions.
Azure Functions support for .NET 6.0 follows the .NET 6.0 lifecycle. To learn more, please refer to Azure Functions Language support policy and .NET support policy.
Get started with .NET 6.0 on Azure Functions with this tutorial and the Azure Functions 4.0 announcement blog post to learn more.