The last software update was for the September build. They have October and they have recently pushed November. The October build brought more features to the phone such as fingerprint gestures and security patches. Essential is recommending to swap a non-Telus/Koodo sim card to allow the phone to update. I've checked the upcoming software update for Telus/Koodo and Essential is nowhere listed to upcoming dates.
From what I understand, the software update calendar isn't very accurate. Telus usually makes the changes for their customers first, push the update, then send it to Koodo for them to change what they want and push it. So it might take a little bit of time for the updates to be pushed through.