This wiki is about 0.16, the current stable version of Factorio.
Information about 0.17, the current experimental version of Factorio, can be found on wiki.factorio.com.
Please note that Factorio is still very much under development. This list is updated when a release is marked as stable, and essentially serves as a way to quickly view existing changelogs. To see changes made in unstable versions see the forum news.
For a general overview what has been done and what is planned, look into the Roadmap.