This update includes some important security enhancements and is recommended for all users. It also contains a number of bug fixes raised against 4.3.0. For a full list of items covered in 4.3.1 please visit our bug and development tracker.
One important item to note is that in line with more recent WordPress developments, we have moved most of our Javascript to be loaded in the footer (on the front end – not Admin). This should NOT result in any problems for our users and should, in fact, aid general performance. Sadly, we know from experience that there are a lot of plugins that do not abide by WordPress guidelines or use the supplied functions and load their scripts – often duplicate copies – all over the place. For a small handful of users this move may result in some teething problems which we will help with wherever we can.