I've come across a few bugs while playing in the 18w11a snap over the last few days with my sister. Here's a list:

• No cactus green recipe
• Fished a VERY op book that seems like a bug?
• Bad mineshaft generation (i.e. torches floating on air)
• Pufferfish insta kill when you bump into them in a boat
  I'll be sure to post if I find any more issues!

Attatched image is the very op book.