Minecraft Bedrock 1.16.230.52 Beta:
-Added deepslate, does not fully generate below -64. it generates like andesite
& other stones on y=8 to y=-16
-Added deepslate variant of ores
-Added axolotl & bucket of axolotl - comes in different colors
-Axolotl can kill fishes, guardians, squids & other mobs
-Axolotls can be breeded with bucket of tropical fish
-Axolotls can be obtained with buckets
-Axolotls can be leashed
-Added cobbled deepslate block, wall, stairs and slabs, Added polished
deepslate block, wall, stairs & slabs, added deepslate tiles, wall, stairs &
slabs, added cracked deepslate tiles, added deepslate brick block, walls, stairs & slabs, added cracked deepslate
block & Chiselled deepslate brick block
...
https://www.youtube.com/watch?v=zyvj_y-99zw