There are in fact two completely separate notices.
When the new version will be realised (identified by some 1.x-y version number), its working and facilities will be somewhat different from the current one. Therefore, it is not advisable that one develops a lot of code under the assumption that certain functions will still be there. The following are broad guidelines about the possible changes:
I am aware that this can cause some inconvience, regrettably. This is why this announcement is made well before the release of the new code. Also, bear in mind that the current version numbering 0.x-y was chosen exactly to signal that it is still experimental code, hence subject to major changes.
I do not know when version 1.x will appear. It is not only a matter of writing code, but also of completing some supporting theoretical work.
It is even more difficult to state anything on the production of a porting of version 1.x to Matlab. Volunteers to take on this responsibility are welcome.
A.Azzalini
January 2007