👷 Limited support on Python 3.9 releases

[hanxiao]

🎉 Python 3.9 support

Starting v0.9.22 Jina starts to provide Python 3.9 initial support. PR #1802 enabled this support.

You can use pip install jina or docker run jinaai/jina:latest-py39 to use Jina in Python 3.9 environment. This applies to Jina extensions such as daemon, devel; details on the version naming can be found here. PyPi packages and Docker images will be updated accordingly.

👷 Known issues

In this initial support, there are few known issues:

• Slower speed due to lack of C++ protobuf backend. We are pushing forward this PR this PR on the upstream. Once this PR is merged on the upstream we will be able to install protobuf directly from precompiled wheel
• tba

We will work with the community and the upstream to solve these known issues in the next couple of weeks.

[jina-bot]

This issue is stale because it has been open 20 days with no activity. Remove stale label or comment or this will be closed in 4 days

[cristianmtr]

FYI TF2 does not support Py3.9 yet but are working on it.

tensorflow/tensorflow#44485