Relax:is still under development?whether relax only implements some independent pass optimization?

In the latest version of TVM tvm-0.16 .0, relax is already supported. However, the source code has only some optimized pass and related tests, and there is only one vmbuild compilation. There is no complete compilation function like relay that can directly invoke the compilation model to the executable file of a platform. I want to ask whether relax only implements some independent pass optimization for our own invocation.Or is it still under development? What is missing compared with relay will be gradually added later? I am a TVM beginner. Thank you very much for your discussion.