Breaking or important changes

• Supports facebook's pyrefly type checker (#106, #107)
• Initial mypy plugin that mimics XMLParser.set_element_class_lookup() behavior

Bug fixes

• Setting HtmlElement.label to None is disallowed
• Basic stub works with Python 3.9 again; TypeAlias usage caused requirement of Python 3.10

Test related

• Migrate HtmlMixin properties and .set() method tests to runtime

Other changes

• types-lxml[dev] extras is installable again

It is possible to verify all release files indeed originate from GitHub and not altered elsewhere using GitHub CLI. For example, after downloading wheel file, run the following command in terminal to validate:

gh at verify types_lxml-2026.1.1-py3-none-any.whl --repo abelcheung/types-lxml