Hi,Hey folks
there is a field in the list "Passports/Travel Documents (Multiple)"
Should I upload only my current VALID passport or my old one too (I have some visa there which prove my travel history within last 10 years)?
As you have indicated, the instructions only ask for the current passport, so there is no need to upload expired passports. IRCC have other ways of checking travel history. However, you will not be rejected for adding it if you feel compelled to.
All the best