pypi / python-frontmatter
python-frontmatter
What changed in python-frontmatter 1, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-24.
3 breaking1 new APIs and options1 behavior and defaults1 tooling1 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli initpython-frontmatter 17 changes
Breaking changes 3
Support for Python 3.9 has been dropped.
Use handler.detect instead of the global dictionary.
Support for Python 2, 3.4, and 3.5 was removed.
New APIs and options 1
A method was added to customize output.
Behavior and default changes 1
The release promises the API will not change until at least v2.
Tooling 1
The package distribution now includes the py.typed marker, allowing type checkers to recognize the package as typed.
Fixes and other changes 1
Type issues were resolved, improving the package's typing.