Is there a promotion and downgrade system for Australian Super League?

Is there a system for promotion and downgrade in the Australian Super League? The A-League was officially established in 2004, with a total of 13 teams participating, using the regular season + playoff system. So is there a system for promotion and downgrade in the Australian Super League? Let's take a look together.

The Australian Super League has no promotion and relegation system. The Australian Super League adopts a closed model similar to the North American Sports League. All participating teams are fixed and no relegation mechanism is set. Therefore, the pressure of no relegation has led to the league's tendency to open offensive tactics, and the number of goals scored in the game is generally higher.