Just copying it from the Slack message - devlist seems to be more appropriate :).
We got informed by Daniel Gaspar from Superset that he is gearing for release of FAB 5.0.0 - and asked us to test a8 release https://pypi.org/project/Flask-AppBuilder/5.0.0a8/ - which should - in principle - unblock us from migrating to SQLAlchemy 2. I looked at what is needed and we need to do it in two steps. Step 1: Migrate to 4.6.2 version of FAB -> FAB 4.6.2 added Group support (which generally is something that might be useful for us as well - and highly requested feature Step 2: Test and migrate to SQLAlchemy 2 And I think it's best it's done with Vincent and maybe someone from Astronomer who knows more about Sqlalchemy and data migration than me - I am happy to participate and review, but I do not feel competent to implement the changes - I've never added any migration or SQLAlchemy model. Unfortunately this requires far more than copy & pasting pieces of vendored-in FAB security manager. Years ago a decision was made that we vendor-in part of the code of FAB - and part of it is vendoring in models and migration and we need to follow that - unfortunately. It does not seem a lot of work, but I am afraid I only know SQLalchemy on a very surface - there is literally one model (Group) to add and some code to handle it - including migrations, but also testing the new group feature of FAB and how it integrates with Airflow is a bit more complex than just "new FAB version migration". I created a small task for it - without too many details - but I think we need a small team (I guess Vincent is the most natural candidate + someone from Astro about migrations and SQLAlchemy) who could implement and test this change. I am happy to review, help to make decisions and discuss it and get the dependencies sorted out. https://github.com/apache/airflow/issues/50186 One of the things it will unblock finally if we get to 5.0.0 is PRs like that https://github.com/apache/airflow/pull/50221 where we cannot bump the min version of sendgrid because it conflicts with the infamous Werkzeug versions that old FAB depends on. WDYT? Can we get a small group of people around that task to do it "properly"? It would be great to have it as a 3.1.0 deliverable to finally cut all our ties with the old FAB things. J