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Flask v2.1.0 Release Notes

  • 🚀 Unreleased

    • 👍 Drop support for Python 3.6. :pr:4335
    • ⚡️ Update Click dependency to >= 8.0. :pr:4008

    • 🚚 Remove previously deprecated code. :pr:4337

      • The CLI does not pass script_info to app factory functions.
      • config.from_json is replaced by config.from_file(name, load=json.load).
      • json functions no longer take an encoding parameter.
      • safe_join is removed, use werkzeug.utils.safe_join instead.
      • total_seconds is removed, use timedelta.total_seconds instead.
      • The same blueprint cannot be registered with the same name. Use name= when registering to specify a unique name.
      • The test client's as_tuple parameter is removed. Use response.request.environ instead. :pr:4417

    • Some parameters in send_file and send_from_directory were renamed in 2.0. The deprecation period for the old names is extended to 2.2. Be sure to test with deprecation warnings visible.

      • attachment_filename is renamed to download_name.
      • cache_timeout is renamed to max_age.
      • add_etags is renamed to etag.
      • filename is renamed to path.

    • 🗄 The RequestContext.g property is deprecated. Use g directly or AppContext.g instead. :issue:3898

    • copy_current_request_context can decorate async functions. :pr:4303