Below are a list of commands to run to upgrade from Jessie to Stretch. I have not noticed any side effects of upgrading yet, but please post here if you do.
Befoe you begin backup your invite code:
Copy the value after InviteCode and Id then run the commands below.
sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade sudo nano /etc/apt/sources.list edit anywhere you see jessie to stretch sudo nano /etc/apt/sources.list.d/raspi.list edit anywhere you see jessie to stretch sudo apt-get update sudo apt-get dist-upgrade sudo apt autoremove sudo apt update
sudo apt autoremove seems to remove some things needed by Cayenne, so re-run your Cayenne setup script if you still have it. If not, use the commands below replacing the x’s with the InviteCode from earlier.
wget https://cayenne.mydevices.com/dl/rpi_xxxxxxxxxx.sh sudo bash rpi_xxxxxxxxxx.sh -v