Minecraft wiki entry for Development_versions, associated text: MC-151 – Pushing TNT with a piston and activating it at the same time duplicates it.
MC-266 – Placing a solid block near TNT and above redstone torch won't update the TNT.
MC-846 – Dispenser and dropper shooting out when updated.
MC-3259 – Long redstone wire does not update/behaves strange in newly loaded chunks.
MC-3458 – Server crashes if spaces are input on the console.
MC-6223 – Night Vision Potions that are edited to last longer create a potentially seizure-inducing flashing sky background.
MC-10956 – Animals can breed over distances up to almost 8 blocks when only separated by fences.