A new open beta has just been released but it has only been in closed beta testing for a few days so I would recommend waiting to update until you get an update message when you open the software rather than downloading it as they want it to be a staggered release which means that the Beta update message will only appear for a percentage of Beta testers to begin with and slowly increase as time goes on and problems are flagged up and then resolved. This version is 64 bit rather than previous version which was 32 bit so should improve performance. It is the annual Silhouette Conference soon when there will be some exciting new announcements but to achieve that they need to get the 4.2.6x tested by more people than just in the beta group. I have had a few small issues but they are being resolved as soon as they are flagged up so don't be put off !!