21w05b is the eighth snapshot for Java Edition 1.17.

Released on February 4, 2021, which fixes three bugs and make changes to the copper’s name


The latest snapshots for Minecraft 1.17 is out.

And it’s good news for players like glowy stuff.

Last time we got glowing squids, now we get glowing berries.

They grow from cave vines.

You can only find these in  caves.

Not only do they glow, but you can eat them too, making for a handy snack on the way.

The new changes
Renamed the Copper Block to Block of Copper.

Removed the word “Block” from oxidized variants of Block of Copper,with also the waxed variants.

The IDs have also been updated and has Renamed Waxed Copper to Waxed Block of Copper.

The ID has been changed from:

waxed_copper to waxed_copper_block.



3 issues fixed
From the 1.17 development versions

MC-203813 – Copper blocks are named inconsistently

From the previous development version

MC-213788 – The game can randomly freeze

MC-213802 – Copper is not upgraded correctly from pre-21w05a worlds