Send Chat Message on Stage Change

Hello everyone, currently I am trying to send a chat message to chat when the stage of my mod changes so far i am using.

if(!sentUpdateMessage) {
			switch(Stages.getStage()) {
			case 1:
				statusMessage = "Stage One Beginning";
			}
			
			event.player.sendMessage(new TextComponentString(statusMessage));
			sentUpdateMessage = true;
		}

to make it display only once in a PlayerTickEvent and was wondering if there was a way to only run this when the stage changes