I applied a few weeks ago for a Canadian eTA as I am planning to travel in a few months and wanted to have it before buying the plane tickets. I was granted the eTA on the spot.
When applying, I have specified my only citizenship at the time and left the 'additional citizenships' box blank. In the meantime, I obtained a second citizenship though naturalisation. The application form mentions I should apply for a new eTA if I change the passport I plan to travel with, but I don't mind using the passport associated with my first citizenship.
Should I get a new eTA anyway?