Bedrock Edition 1.2.3

1.2.3 was an update for that was released on October 18, 2017.

General

 * Realms
 * Added a button to join a Realm using an invite code on the Friends tab for platforms that can't click on Realms invite links.

Blocks

 * Shulker Boxes
 * Light Gray Shulker Box now has a proper name.

Items

 * Elytra
 * Changed the name to just "Elytra".

General

 * Inventory
 * Pressing the A button on the Creative inventory will now place one item in the inventory, not a full stack. Pressing the Y button will place a full stack and X will clear the hotbar in Creative mode.

Fixes

 * iOS render distance is no longer limited to 6 chunks on higher memory devices
 * Fixed an exploit that allowed child accounts to join servers when multiplayer permissions were disabled
 * Fixed a crash when the game was suspended (Xbox One only)
 * Fixed a crash that occurred if a player with blocked multiplayer privileges was in a world and accepted an invite from another player (Xbox One only)
 * Fixed a crash that occurred when closing the skin picker
 * Fixed a crash that occurred when loading world chunks
 * Fixed a crash that occurred when using the crafting screen
 * Fixed a crash that occurred when going through a Nether portal and then using a piston
 * Fixed a crash that occurred when crafting items while a split-screen player joined (Xbox One only)
 * Fixed a crash when pressing OK on the disconnect message after suspending and resuming the game (iOS only)
 * Fixed a crash that occurred with Iron Golems on converted worlds
 * Fixed a crash that occurred when using the command that caused too many spawned entities to fall
 * Fixed a crash that occurred when using uppercase letters in commands
 * Fixed a crash on low memory iOS devices
 * The game will no longer freeze if a second player joins with split-screen while the first player controller is disconnected (Xbox One only)
 * Decreased the sensitivity of placing blocks
 * The 'Sniper Duel' achievement is now unlockable (Xbox One only)
 * The 'Inception' achievement in now unlockable on all platforms
 * Fixed an exploit that caused rails to be duplicated
 * Fixed an exploit that caused Shulker boxes to be duplicated when broken by an explosion
 * The Sign screen can now be closed if the cursor has been moved to the third line (iOS only)
 * Fixed worlds that were created on Xbox One not opening after being downloaded to another platform from Realms
 * Fire Resistance effect will now properly protect players after quitting and rejoining a world
 * The virtual keyboard no longer opens and can't be closed when opening Host Options (Fire TV only)
 * Fixed torches and other light sources giving off very little light when Smooth Lighting was enabled
 * Attacking or mining with an enchanted book will no longer apply the book's enchantment
 * Players can no longer be targeted by mobs before loading into a world or dimension
 * Fixed an issue causing transparency issues on several skins
 * Pressing the A button no longer cancels Elytra flight and will now make the player ascend
 * Players will no longer cease climbing stairs and slabs while flying
 * Fixed Iron Golems not causing enough Knockback effect
 * Servers will no longer briefly appear on the Friends tab
 * Heavy blocks no longer break when falling on leaf blocks
 * Fixed the texture offset of Mooshroom's udder layer
 * Cobweb will now drop as an item when cut with shears
 * Sheep no longer emit two sounds when dying
 * Food particles now appear when feeding animals
 * Items renamed in an anvil that have been placed will now retain their names after being mined
 * Several improvements to handling split-screen controller assignments (Xbox One only)
 * The game will no longer accept input from the previous controller after changing controllers while the game is suspended (Xbox One only)
 * Split-screen players are now correctly assigned after their controllers are disconnected and reconnect in a different order (Xbox One only)
 * Fixed Guardians not spawning in Ocean Monuments
 * Leaves that have snow over them will no longer appear black
 * Fixed an issue that could cause chat to freeze if there was a high amount of chat output
 * Skulls can now be placed on the ground when a layer of snow is already there
 * Endermen now take damage in filled cauldrons
 * Doors, Wooden Buttons, Ladders and Fishing Rods can now be used as fuel in a Furnace
 * Fixed some vines being destroyed when pressing right-click
 * Fixed an incorrect controller tooltip when moving an item in the Creative inventory over the hotbar
 * All mobs can now be spawned on water by players
 * It's now easier to see the texture animation of flowing water
 * Spider and Endermen eyes are now slightly visible when hit with invisibility potions
 * Fixed no sound when filling a bottle with Dragon's Breath
 * "Elytra Wings" are now referred to simply as "Elytra"
 * Players with Fire Resistance will now receive damage from lightning
 * Fixed a constant green highlight on the inventory screen of tamable mobs
 * Pumpkins and mob heads can now be equipped directly from the Creative inventory on Pocket UI
 * When placing layered snow, only one block will now be taken from the inventory
 * Flint and Steel no longer takes damage when hitting mobs
 * Using Pick Block on giant mushrooms will no longer give unobtainable mushroom blocks
 * Arrows that are picked up will now join an existing stack in the offhand slot, not creating a separate stack
 * Minecarts and boats can no longer be destroyed by Ender Pearls
 * Door and fence gates can now be placed on dirt path blocks
 * Items moving in flowing water will no longer have jittery movement
 * Dead bushes can now be replaced when placing blocks and items
 * Decreased the hitbox size on crops
 * The hitbox size of Nether Wart will now increase as it grows
 * Increased the distance that the Enchantment Table book will open when a player approaches it
 * Runes no longer float from bookshelves to the Enchantment Table at the same time
 * Fixed graphical issues with the experience bar when the Candy Texture Pack is applied
 * Banners will now wave when daylight cycle is disabled
 * Light Gray Shulker Boxes now have the proper name
 * Shulker Boxes now only give a full Redstone signal when filled with 27 full item stacks
 * Top snow is now destroyed immediately after placing water or lava over it
 * Food particles no longer come out of players' foreheads
 * Crafting and container screens now close when a player takes from another player or mob
 * It is no longer possible for players to place a block in the same space they are sneaking, causing them to fall
 * Uncraftable and unobtainable items no longer appear in the Recipe Book in Survival mode
 * The tooltip for Stone variants in the Recipe Book now properly show they're in the "Nature" category
 * Split-screen GUI Scale is now saved separately from Fullscreen GUI Scale (Xbox One only)
 * Mooshroom now displays a particle effect when sheared
 * Eating and drinking animations are now visible when a player is seen from third-person view while under the invisibility status effect
 * Additional Map items are no longer lost when more than one Map is placed in an Anvil’s input slot while creating a Locator Map
 * Fixed player's camera Y-value from flickering up/down when the player teleports
 * Fixed "Custom" skin name appearing as placeholder text on player skin change notifications
 * Fixed the left leg being rotated the wrong way on armor stand poses
 * Items replaced by a command are now visible instantly in the inventory
 * The "Choose Skin" text no longer flickers on the Skin Picker (Android only)
 * Scroll bars in menus no longer jitter when using the right stick to scroll
 * Fixed low-speed movement occurring after controller thumbstick is released (VR only)
 * When pressing tab to complete a command, the choices are now sorted correctly
 * Adding a  to an entity type no longer prevents  from working

Video
Video made by slicedlime: