Visiting Canada - DWI 2012

Got myself a DWI in 2012. Paid fine immediately and completed 18 months of probation (actually that ended a little early).

Is there anything I need to do - or have with me - to successfully cross into Canada on a family vacation? I understand I'm [probably] grandfathered into the rules as they existed before 2018(?) and fall under the 5-year "deemed rehabilitated" scheme?

My main question is whether I'll need to prove all that ^ when crossing.