Minecraft wiki entry for Development_versions, associated text: Pressing the menu button on the Xbox One controller will now execute quick commands
Teleporting entities to or from a ticking area no longer fail to render or be interacted with
Players will no longer receive an unknown map when using ‘/replaceitem’ command to place a map in the off-hand slot
Items will now be received immediately and correctly when using '/give' command with a chain command block
Fixed 'End_gateway' and 'End_portal' having placeholder images in command auto-complete
Teleporting a horse while it's being ridden now works as intended