5.7.3.1 improves the experience of using the design controls for blocks and areas, adds scroll wheel support to the Google Maps block, enables easier installation on a wider variety of setups and fixes lots of bugs, including some major ones with the page type composer form editing interface. It is highly recommended for all concrete5 5.7 users.
Want to get up to speed? Check out all the things that are new with concrete5 version 7: