If I pass my practical test recently for a new licence but have an existing class licence for a year or more, am I under probation?

If I pass my practical test recently for a new licence but have an existing class licence for a year or more, am I under probation?

Yes, you will still be under probation. 


For example, your Class 3 licence may be revoked if you obtain 13 or more demerit points during the probationary period of one year.