I have submitted my application to sponsor family class on Aug 1, 2017. The forms I used are IMM008 (03-2017) & IMM1344E (08-2014) but since then CIC updated form to IMM008 (06-2017) & IMM1344E (06-2017). My question is, How long will CIC accept old version? Will all the forms being return? and if so, after how long will they return? it doesn't say on CIC website.