Improved
Holiday names now default to English, with ?lang= for local languages
- Holiday names previously came back in each country's own default language — Kenya returned Swahili ("Mwaka mpya", "Ijumaa Kuu"), which surprised English-speaking integrations.
- GET /api/v1/location/countries/{country_code}/holidays/{year} now returns English wherever a country publishes it, and falls back to the country's primary language otherwise.
- Pass ?lang= to choose explicitly — ?lang=sw returns Swahili for Kenya. Unsupported values return 400 with the list of valid options.
- Responses now include meta.language and meta.languages_available so you can see and discover what is on offer.
- Heads-up: if you relied on Kenyan holiday names arriving in Swahili, add ?lang=sw to keep the previous behaviour.