Hello everyone, Following the discussion we had with Elad in https://github.com/apache/airflow/pull/15156 I would like to make a proposal of introducing a policy about supported K8S version. This is very similar discussion (and I believe it should be the same approach) as for supporting Python versions:
https://lists.apache.org/x/thread.html/ra2927221baad192bed1890d4f50a39fa279f67de0aa5305155cbba7b@%3Cdev.airflow.apache.org%3E We already have the policy agreed to and voted on for Python versions: https://github.com/apache/airflow#support-for-python-versions (I copied it below). I think with K8S it should be basically the same as for the Python version policy, so I would like to update the wording of the policy and include K8S alongside Python. If there will be no major objections to it, I will seek a lazy consensus on it. If there will be a substantial discussion, we will carry it on and eventually end up with a voting process. Note that the APIs of K8S we use are rather stable and I have not seen any major version-incompatible change like, ever so far. Also I just (in the PR above) switched from 1.16/1.17/1.18 to 1.18/1.19/1.20 and it "just worked". The fact that we are not going to test it, does not mean it new versions will not work on older versions of K8S. What does it mean for K8S support ? 1) As described in https://en.wikipedia.org/wiki/Kubernetes , 1.16 and 1.17 reached EOL and are not supported now. We should (at least officially via testing) stop supporting them now. 2) 1.18 support ends 30th of April, so we should drop it in a month 3) 1.19 support ends 30th of September 4) 1.20 support ends 30th of December Let me know what you think. I will merge the change with the 1.18/1.19/1.20 change now in master, but if we reach different conclusions, we might add more versions before we release the next version. J. ------- Current policy for Python version 1. We finish support for Python versions when they reach EOL (For Python 3.6 it means that we will remove it from being supported on 23.12.2021). 2. The "oldest" supported version of Python is the default one. "Default" is only meaningful in terms of "smoke tests" in CI PRs which are run using this default version. 3. We support a new version of Python after it is officially released, as soon as we manage to make it work in our CI pipeline (which might not be immediate) and release a new version of Airflow (non-Patch version) based on this CI set-up. J. -- +48 660 796 129
