■Editable Books - Book and Quill, crafted using a Book, Feather, and Ink Sac.
■When a Book and Quill is made, it can be right-clicked to open a screen that allows you to type the book.
■Pressing "Done" will save whatever was typed and allow you to edit the book again later, yet will not "sign" it.
■When "signing" a book, it will allow you to choose a title up to 16 characters long and disable editing of the book. The Book and Quill then becomes a Written Book, with the icon changing along with the label.
■Wooden slabs for each of the four shades of wood added
■These new slabs no longer act like stone
■An axe should be used to break them
■They are no longer immune to fire and lava
■New block IDs 125 for double wooden slabs and 126 for single wooden slabs.
■Wooden slabs created in older versions of Minecraft are still stone-like and fireproof and will not change to the new slabs when placed or mined.
■Leather is now required to craft Books.
■Silk touch can now retrieve Ice blocks and glass panes.
■Ice no longer turns into water in the Nether.
■In the menu, Chat Options were added.
■Added chat opacity, letting the chat be semi-transparent.
■Added chat disabling, removing the chat for SMP servers.
■Added chat colors option.
■Added "Only Commands" mode to chat.
■/help added.
■Tools now have infinite durability in Creative mode.
■Minecart and boats are destroyed in one hit in Creative mode.
■Various bugfixes, some regarding entity collision, the pick block function, and chat.
■Livestock, such as chickens, can now be "walked through" instead of pushing the player around in crowded pens
■Flying through water in Creative mode is no longer slow
■You can no longer have a bonus chest in Hardcore mode.
■Server Commands now appear in italics in SMP.
■Saplings now have their proper names.
Notable Bugs
■All wooden slabs appear as the Oak slab when placed upside down. This is purely visual.
■The Sound and the Music volume aren't displayed correctly.
■Wooden slabs spend light when placed before 12w17a.