Minecraft PE 1.16.200.57 for Android

Rush to download new beta version of Minecraft 1.16.200.57 on Android? Should know what fixes it brings. To tell truth, 6 pieces.

Performance and stability corrections

Not much work done in this direction, 3-fixes made:

Increased speed of building terrain when flying on elytra.
Can use secure workbench in creative mode!
Modified-blocks with controlled-data will no longer overflow memory and cause MCPE to crash or hang.

Technical fixes
3 edits:

Corrected number of bugs when using managed data blocks.
Solved
Issues with copying data on servers.
Manage-data usage for UV (ultraviolet).