This is not a bug, this is an idea. A good one to! :D

I think there is not enough things for parkour, so I want that to change. Could you make 2.0 a parkour update? If you already have an idea, that's fine, but I'd love minecraft EVEN MORE if it had more parkour things. For example, maybe you could add in a bar, that when right clicked on, you will swing, and press L Shift to get off, and when you get off, you will get thrown the direction your body was leaning towards! The crafting recipe might be three iron bars in a row for 3 bars! And you could make ropes! which would do a similar thing, except whichever way you try to make your character move, it would swing!
Rope: 3 string for 1 rope. And last but not least, grabbing! Maybe you could make it so that if you right click the edge of a block with air above it, you grab on to it! And if you press W rapidly, you will climb onto that block! Thanks!