WooCommerce 3.0 has arrived. Originally planned as version 2.7, WooCommerce releases are now adopting semantic versioning, whereby major releases (those with API changes or the potential to affect extension compatibility) will receive a new major version number (eg. 4.0, 5.0), whilst minor releases and patches will receive point versions (eg. 3.1, 3.2).
So, 2.7 has become a major release 3.0, which contains many new features and improvements.