I would put this script in my startup applications:
#!/bin/bash
cd /var/tmp || exit
if [ -f "Manjaro_iso.txt" ]; then
mv Manjaro_iso.txt Manjaro_iso.old
fi
curl https://manjaro.org/get-manjaro/ > Manjaro_iso.txt
diff Manjaro_iso.txt Manjaro_iso.old
status=$?
if [ $status -gt 0 ]; then
notify-send --urgency=LOW --icon=face-plain "Manjaro ISOs" "Manjaro ISO page was changed!"
fi
It’ll compare the Manjaro download page to the previous time you logged on and notify you of any change (even when there are no new ISOs to download but the webmeister just removed the proverbial comma)
(haven’t tested this over multiple days yet, you’re the debugger!)