Minecraft wiki entry for Development_versions, associated text: MC-77176 – When retracted by sticky piston, activated detector rails do not update their orientation.
MC-77820 – Ender dragon death light glitch/bug.
MC-82995 – Blocking with two shields in 3rd person mode.
MC-114030 – Structure blocks take and apply NBT data of entities and tile entities directly instead of a copy when loading and saving structures.
MC-127971 – Trying to throw a trident while having a shield or bow equipped will make the trident appear backwards in your hand.
MC-147625 – Ender dragon tries to regenerate from destroyed ender crystals.
MC-149799 – When a crossbow is loaded and in the offhand, you do not see it anymore if you carry an item in the main hand.
MC-153483 – When swapping tridents between hands the trident being held does not swap visually, it just flips backwards.
MC-159820 – 3rd person reverse trident bug.
MC-177873 – Trident and shield holding model is activated as you use an item with a right click function in another hand.
MC-178572 – Using a shield triggers model for other poses if respective item is held in the other hand.
MC-179309 – Trident animates backwards while eating.