Should really have posted in the citizenship section but anyway from October 11 you need to show 3 years physical presence in Canada in the 5 years prior to the date of your application.
This can include time prior to becoming a PR at a rate of half a day for each day adding a year max to qualifying period as long as still within the previous 5 years. So someone for example could in the previous 5 years have 2 years since becoming PR and 2 years pre PR at half day per day to accumulate the 3 years.
In your example if you have been in Canada as a PR since Sept 2014 then you could qualify post OCT 11 when new rules become effective, assuming you have never left the country since Sept 2014
