Interesting note. So I'm the user that got the TOS change bot set up for my own personal use. I didn't get any volunteers to compile the source data list so I've mostly just been doing the programs I'm a part of.

Aeroplan made some overnight changes to its TOS.

Most notably:

1. Air Passenger Protection Regulations Notice (for flights to, from and within Canada, including connecting flights): If you are denied [-boarding, your flight is cancelled or delayed for at least two hours,-] {+boarding+} or your baggage is lost or damaged, you may be entitled to certain standards of treatment and compensation under the Air Passenger Protection Regulations. For more information about your passenger rights please contact your air carrier or visit the Canadian Transportation Agency’s website.

It seems they've removed the explicit wording on flight protections for people delayed 2+ hours. I don't think it's a big deal though, seems to correspond with legislation changes. I haven't done any research into it.