3.9.0
Core
- New feature: extend language code to 3-letter (ISO 639-2 and ISO 639-3), lower case (#836, #668)
- Major refactoring with unique regex of language code for future ISO 3166 and 15924 support (#880, #668)
- Fix hreflang default URL when browser detection disabled (#198, #819)
- Cleanup repo, remove experimental dev slugs
WooCommerce