We work with other authors, to make sure that WPML works great with themes and plugins. To ensure ongoing compatibility, we run automated tests with many themes and plugins. We check that nothing breaks when they or us release updates.

With over a million sites using WPML, we take stability and security very seriously. We run full QA before any release. We test WPML on different WordPress versions and with different popular plugins and themes. When a new version arrives, you don’t need to worry or stress.