What's the difference between Kreg Tool PRS1045 and PRS1040? Thank you!

The PRS1045 is a newer router table that combines the popular features of its predecessor— the PRS1040 Kreg Precision Router System—with an innovative batch of new features and improved capabilities. The new PRS1045 Kreg Precision Router Table System features an all-new self-squaring fence system, an updated table, as well as an easy-to-use steel stand that offers even more customization.