How about an update "Help File" because it is really, really REALLY in need of updating?!
You could use some info from various tutorials if necessary, but really it shouldn't be so much trouble because, heck, you made the program yourself, so you can write up some generic instructions as to how to use new features (not even necessarily the features in this beta, but rather features like:
-Layers
-Newer Combos (such as flowers, shadow water, bushes, "Overhead", conveyors etc.)
-Applying Shadows to Enemies
-New Items (Amulet, Magic Jars, Din's Fire, Super Bombs, Hookshot, Hammer, flippers, etc.)
-Link's Sprites (how to change them, what each is for, etc.)
-New Enemies (Deathknights, Petra 3, BS Petra, Super Darknut, Cractorok, Fire Wizzrobe, etc.)
-New Quest Rules
-The Magic System (Making items use magic, changing magic meter, magic jars and magic upgrade, etc.)
-Room Types
-Linking Strings together
-Combo Animation
-Combo Cycling
-And Much, Much More!!!