Azure Functions runtime 4.0 is now in public preview
Published date: September 22, 2021
Azure Functions runtime 4.0 is now in public preview, supporting the following language/runtime versions:
.NET 6.0 (in-process and isolated process)
Python 3.7, 3.8, 3.9
Java 8, 11
Azure Functions 4.0 is expected to reach general availability in November 2021, coinciding with the planned GA release of .NET 6.0.
See the announcement blog post for more information.