Hi all, today a PR (https://github.com/apache/superset/pull/16889) was merged that added support for Python 3.9 and migrated existing CI testing workflows from 3.7 and 3.8 to 3.8 and 3.9 respectively. Superset still supports Python 3.7 for now, but as we prepare to add support for Python 3.10 (released yesterday), we will need to gradually deprecate support for 3.7. Therefore, I urge organizations that are still running Superset on Python 3.7 to begin preparations for upgrading to Python 3.8, which has been in widespread production use at multiple orgs for over a year now. No definitive timeline has been set for deprecating support for 3.7, but for orgs planning on running the next versions of Superset (1.4+), it is recommended to upgrade by the end of this year at the latest.
Also, it would be very valuable to get feedback on potential issues running Superset on Python 3.9. So I urge all brave developers out there to try out Superset on Python 3.9 (or even 3.10!) and report any good/bad experiences on Slack, GitHub or the mailing list. Ville
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