pypi / langcodes
langcodes
What changed in langcodes 3, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-24.
1 breaking1 deprecations
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli initlangcodes 32 changes
Breaking changes 1
language-data is no longer installed by default, affecting what is included when installing langcodes.
Deprecations 1
A warning was added that best_match is deprecated, informing developers that they should avoid relying on it.