Minecraft wiki entry for Development_versions, associated text: MC-148000 – Enchanted books cannot be disenchanted with the grindstone.
MC-148009 – Failed to load Realms module error.
MC-148031 – Spectator flying slows down in solid blocks.
MC-148037 – Light level decreases on blocks as Y-level increases.
MC-148045 – Same items types on ground don't stack together.
MC-148185 – Duplicate maps using cartography table.