This sounds like a positive change, definitely a much better grounding in Australian history than I received at that age. It is pretty wild that you can live in a colonial country without ever being taught what colonisation means for indigenous peoples but that is the world we’ve been living in until recently.
Which state did you attend school in? I went through high school in South Australia during the 2000s and in this age bracket Australian history was focused on stuff like Gallipoli, famous “explorers”, etc. Earlier education was the same. Any references to Indigenous Australians were whitewashed examinations of culture, like traditional hunting.