foxrever Unfortunately, we cannot answer exactly when. Since we have not yet made proper announcements regarding the 4.2 release, we will not be able to provide physical documentation until after the announcements.
We apologize for the inconvenience, but if you have any concerns or questions, please do not hesitate to ask them in this forum. Asking questions in the forum will help other users, and knowing what things are most likely to be difficult to understand will help us write the documentation.