Sarah Gooding for WP Tavern:
This week the WordPress Theme Review Team updated its guidelines to require all new theme submissions to be translation-ready. Theme authors submitting new themes to the official directory must ensure that all text strings are translatable. This also applies to any updates to existing themes.
This is a great move for the WordPress Theme Depository. Making a theme translation-ready doesn’t involve a lot of work for the developer, but it makes things a lot easier for the end user.