These latest versions include a minor fix that was showing a broken theme in certain conditions when comments were restricted to logged in users. You can download the updated themes from the Your Loom section.
If you find any potential bugs or problems with any of the themes from the loom, don’t hesitate to get in touch. The themes are always evolving as WordPress gets better and better.
The support forums are also a good place to start if you are needing some help.