Lori doesn't seem to have mentioned this but I've found out that there's to be another forum system update some time today. I don't know when or if this forum will be out of action for any length of time.
Change 1 If you want to change the email address used to log in, the change will now be a 2 step process. An email will be sent to both the old address and the new address. The one sent to the old address will have the option to cancel the change. That is to stop someone else trying to hijack your account.
Both emails will have the option to verify the change. If you don't do anything, the change of address will go through automatically after 72 hours.
Change 2 The Activity stream (accessed from Activiity in the top menu) will cease to be as it's not used much by people.
Change 3. The Topics list page as well as the list of forums is to change to be closer to be closer in appearance to the Home page. The administrator (Lori) will be able to control what details are shown. This could be quite a major change. @Lori should be able to go into more detail than I can,