Yep it is a risk but again its a version they were accepting so I am sure they won't deny the visa because of this. Surely they could ask you to upload the new form but again comparing the 2 version I could see no difference. I wouldn't really be concerned about the form versions in my opinion.I also have that version but I dont want to submit it, if it goes wrong, the application fees and all the efforts and time would be wasted, I think its better to wait for some time.
@Rohit Sharma 0999 - I thought you were applying for a different visa (IMM 1294)?