As a beta tester, you will gain access to all upcoming features, fixes, and changes before the final stable release. Along with this also comes a slew of bugs that will need to be worked out. Please do the best you can to find and report any bugs. When doing so, include the information found by double clicking on the "Page:" label and the reproduction steps so I can see what's causing the problem. Remember, because these are betas, features are subject to change without warning and may be completely pulled in the final release. There may also be specific instructions that are to be followed to properly test new features or changes, all of which can be found in this announcement page.