This seems to be for Managed VM [1] only, so it's a case of better documentation & tooling, but no new functionality. You can already run arbitrary code of any language on Managed VM instances.
[1] Managed VM is a sort of meet-half-way service from Google that is quite freeform like Compute Engine, but also offers access to a good chunk of App Engine's services. Still, it's very much not the standard App Engine.
[1] Managed VM is a sort of meet-half-way service from Google that is quite freeform like Compute Engine, but also offers access to a good chunk of App Engine's services. Still, it's very much not the standard App Engine.