* Support use nested=None(`transaction(db.session, nested=None)`) to avoid bug from `flask_sqlalchemy.models_committed` signal.
2.2.2
* Refactor tpl: Auto nested blueprint. * Refactor tpl: ping and options api were merged into tools. * Enhance teardown_method in test: auto handle deps when delete table. * Fix some typo.
2.2.1
* Add `err_handler.HobbitException`: Base class for all hobbitcore-related errors.
2.2.0
* Support Python 3.10.
2.1.1
* Add util `bulk_create_or_update_on_duplicate`, support MySQL and postgreSQL.