I searched the net. A lot.. and found something that I thought it was good
There wasn’t anything new during the time my application was being processed ,but i didn t know what to do so i wrote a letter (in word prog) following the letter structures’ on internet ,mentioning the fact that my husb visited me or that we had changes in our address. And then i printed it,scanned it,and sent it on my pc again as the format they needed. After that. I uploaded it in my account. That s it. But. People told me that it is not OBLIGATORY to upload if you don t have something really important to tell to the officer.
However, in a short time ,i ll leave for Canada because our appl got approved with or without the client infor. Wish you good luck too