the script: flask-07-upgrade.py [https://raw.githubusercontent.com/pallets/flask/0.12.3/scripts/flask-07-upgrade.py] 2. Run it in the directory of your application: $ python flask-07-upgrade.py > patchfile ends with a slash. #3452 [https://github.com/pallets/flask/issues/3452] Version 1.1.1 Released 2019-07-08 The flask.json_available flag was added back for compatibility with some extensions. It will raise in version 2.0.0. #3288 [https://github.com/pallets/flask/issues/3288] Version 1.1.0 Released 2019-07-04 Bump minimum Werkzeug version to >= 0.15. Drop support for Python 3.4. Error handlers for InternalServerError

upgrade script do the following: 1. Download the script: flask-07-upgrade.py 2. Run it in the directory of your application: $ python flask-07-upgrade.py > patchfile.diff 3. Review the generated patchfile URLs if the Flask static_folder argument ends with a slash. #3452 3.8.4 Version 1.1.1 Released 2019-07-08 • The flask.json_available flag was added back for compatibility with some extensions. It will warning when used, and will be removed in version 2.0.0. #3288 3.8.5 Version 1.1.0 Released 2019-07-04 • Bump minimum Werkzeug version to >= 0.15. • Drop support for Python 3.4. • Error handlers for