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Flask v2.0.1 Release Notes

  • 🚀 Released 2021-05-21

    • Re-add the filename parameter in send_from_directory. The filename parameter has been renamed to path, the old name is deprecated. :pr:4019
    • Mark top-level names as exported so type checking understands imports in user projects. :issue:4024
    • Fix type annotation for g and inform mypy that it is a namespace object that has arbitrary attributes. :issue:4020
    • Fix some types that weren't available in Python 3.6.0. :issue:4040
    • Improve typing for send_file, send_from_directory, and get_send_file_max_age. :issue:4044, :pr:4026
    • 🖨 Show an error when a blueprint name contains a dot. The . has special meaning, it is used to separate (nested) blueprint names and the endpoint name. :issue:4041
    • 🖨 Combine URL prefixes when nesting blueprints that were created with a url_prefix value. :issue:4037
    • Roll back a change to the order that URL matching was done. The URL is again matched after the session is loaded, so the session is available in custom URL converters. :issue:4053
    • 🗄 Re-add deprecated Config.from_json, which was accidentally removed early. :issue:4078
    • Improve typing for some functions using Callable in their type signatures, focusing on decorator factories. :issue:4060
    • 🖨 Nested blueprints are registered with their dotted name. This allows different blueprints with the same name to be nested at different locations. :issue:4069
    • 🖨 register_blueprint takes a name option to change the (pre-dotted) name the blueprint is registered with. This allows the same blueprint to be registered multiple times with unique names for url_for. Registering the same blueprint with the same name multiple times is deprecated. :issue:1091
    • Improve typing for stream_with_context. :issue:4052