The method of procurement has changed. I remember floppies and then installing from CDs. Now, an automatic order is processed and I'm given a link in January to download the software for the current tax year.
In 2014 we retired. So when I did taxes in the spring of 2015, we had to ensure we were back in Canada well in advance of April 30th, the Canadian deadline for filing. Even as recently as last year, we had to use the slips and banking information mailed to us via Canada Post.
Now all information is secured and visible at the Revenue Canada website. In fact, one could import the relevant information directly into TurboTax. However, that'd take the fun out of double checking all the numbers. It doesn't take long now to do the job, not only because of technical changes but because I have so little income!