This is not an official version history or changelog. Minecraft xbox 360 update 12 release article is about previous updates for the Legacy Console Edition.
The following list is organized by the release version and cycle equivalent to the PC version. Added the features of the Update Aquatic. Added new kelp and sea grass underwater flora. Added trapdoors, pressure plates, and buttons for every type of wood. Added bubble columns that are created by underwater magma blocks or soul sand. Bubble columns push players and mobs to the surface, or drag them under.
Added the conduit, a block that provides underwater players with a powerful Status Effect. Added the Turtle Master, Slow Falling and Decay status effects, as well as their corresponding potions and tipped arrows. Added buried treasure explorer maps that will lead you to buried treasure chests. Added fish mobs: cod, salmon, pufferfish, and 3,584 types of tropical fish. Added phantoms, mobs that hunt down players who haven’t slept in 3 days. Added sea turtles, mobs that travels the world but always returns home. Added drowned, monsters that attack players who go underwater.
Added new warm, lukewarm, and cold ocean biomes. Added a new tutorial world to show the player how to use the new features. Internal changes related to future Xbox 360 Edition Update Aquatic save transfers. Refresh of Bedrock Edition upsell messages.