The latest release of WooCommerce has been in development since January 2020, but a lot of improvements has been in the works since 2018. WooCommerce core has had 743 commits from 21 contributors, but we should also mention a huge amount of effort from the WC Admin team and the code that now becomes a part of the core with a history of 3500 commits from 45 contributors.

4.0 is a “major” release. This means that the version is not fully backwards compatible with sites running various versions of WooCommerce 3.x. Therefore, we recommend testing the upgrade on a staging site copy before upgrading your live store and creating a backup of your code and database.

What’s new in 4.0?

4.0 is the first major release of 2020 and we’re excited to include the new version of WooCommerce Admin in this release. WooCommerce Admin is the first step towards a more modern JavaScript-driven experience of WooCommerce core.