Samsung just released the Android 5.1.1 Lollipop update for its Galaxy S5 sets in Canada, and the update is already available as a firmware for almost all of carriers there.
The carriers confirmed to receive the update include Koodo Mobile, SaskTel, Virgin Mobile, Bell Mobile, Rogers, Telus and Fido Mobile.
The build no. of Android 5.1.1 update for Galaxy S5 in Canada is G900W8VLU1COI4, or Oi4 in short.
You should be receiving an OTA update anytime now if you own a Galaxy S5 in Canada, but we would have a firmware with installation guide ready pretty soon too.