This starts the migration guide.
I think it is good to include error text in a migration
guide so that folks can search for it.
I feel like these should be structured
so people who aren't interested (or don't have the time when doing the upgrade) can quickly find the fix for each issue. Might be good to subheading these
Won't jump on the review train, but will add: The raise_on_error change might break some pipeline tests if people are tryna catch DagsterUserCodeExceptions. They will need to reformat their tests to catch the original error instead of reaching in and grabbing the inner exception. Also depending on how they write their type_check functions (if they have custom type checks), they might get new errors. This is summarized in this revision: https://dagster.phacility.com/D1943