1.2.0 (March 08, 2026)

Added

• Raise new UnmappedExplicitNamesError (before: generic MappingError) for unmapped user-provided names.

• Add dio.pretty_io_name() function.

• Add Translator.extract_names() method; derives Mapper input names from translatable.

• Add integration ArrowIO for pyarrow types.

Changed

• Methods Translator.go_offline() and fetch() no longer raise when no derived names are mapped when called with data.

• Delay load_integrations() until first use.

• Explicit DataStructureIO.register() now forces non-negative priority (no change to entrypoint integrations).

• Switch to uv (including build backend).

Fixed

• Fix multiple issues in id_translation.translator_typing.

• Fix enable_verbose_debug_messages() handling of “regular” level arguments (e.g. logging.INFO).

• The load_integrations() function will no longer suppress ImportError for circular imports.

• Various documentation issues.