2.16.4 (2025-04-08)
* New: Set document `lang` attribute based on multilingual language
* New: Use `translate()` as fallback in `maybe_get_string_translation()`function
* Fix: PDF language issue when user locale differs from order language
* Fix: Ensure default premium templates headers are translated
* Fix: Added missing translator comments for several translatable strings
* Fix: Corrected text domain in some translatable strings
* Translations: Updated Italian and Brazilian Portuguese translations
* Translations: Updated the template (POT)
* Tested: Confirmed compatibility with WooCommerce 9.8