I have all the answers to your Minecraft 1.7 update questions! First off the new update has new fish!!! Now you can catch a clown fish, puffer fish, or tuna!! Raw clownfish is pretty useless, the reason is because you cannot cook them and when you eat them they give you about half a food stick! Puffer fish is a big NO NO!!! The puffer fish will give you a swerved vision and leave you with half a heart, and no you cannot cook it. The tuna is actually very useful! Cooked it gives you about 2 food sticks.
Also in the update are new flowers that make obtaining dyes a piece of cake! New dandelions give us light blue, pink, and so on dyes! On the topic of flowers, there are now two block high bushes where you can hide from mobs in! For example if a creeper is chasing you just go hide in a rose bush or use bone meal to grow some! There are tons more new features but this is all for now!
Also in the update are new flowers that make obtaining dyes a piece of cake! New dandelions give us light blue, pink, and so on dyes! On the topic of flowers, there are now two block high bushes where you can hide from mobs in! For example if a creeper is chasing you just go hide in a rose bush or use bone meal to grow some! There are tons more new features but this is all for now!