3.3.0

• Fix __asdf_traverse__ for non-tagged objects [#1739]
• Deprecate asdf.testing.helpers.format_tag [#1774]
• Deprecate asdf.versioning.AsdfSpec [#1774]
• Deprecate asdf.util.filepath_to_url use pathlib.Path.to_uri [#1735]
• Record package providing manifest for extensions used to write
  a file and AsdfPackageVersionWarning when installed extension/manifest
  package does not match that used to write the file [#1758]
• Fix bug where a dictionary containing a key id caused
  any contained references to fail to resolve [#1716]
• Issue a AsdfManifestURIMismatchWarning during write if a used
  extension was created from a manifest registered with a uri that
  does not match the id in the manifest [#1785]
• Allow converters to provide types as strings that can
  resolve to public classes (even if the class is implemented
  in a private module). [#1654]
• Add options to control saving the base array when saving array views
  controlled via AsdfConfig.default_array_save_base,
  AsdfFile.set_array_save_base and
  SerializationContext.set_array_save_base [#1753]
• Deprecate ignore_implicit_conversion and "implicit conversion" [#1724]
• Add lazy_tree option to asdf.open and asdf.config
  to allow lazy deserialization of ASDF tagged tree nodes to
  custom objects. [#1733]