[NDSI] Can you guys point me out to a good guide or tell me how can I update my setup?

I have My DSI setup with Unlaunch 1.4 and HiyaCFW 1.3.2 with DsiMenu++. I tried just updating hiya folder but appears to be more to it than that.

Is there a guide to do this or can anyone guide me step for step what I need to do?

Thank you for any help.