Minecrafthas witnessed exponential growth over the years, especially in the past few months, with many streamers and millions of players playing the game on a daily basis. The game is all set to receive the Caves and Cliffs Update later this year, which will be adding tons of new biomes, mobs and much more.
While there is still some time to go for the Caves and Cliffs update to release, Mojang Studios regularly releases some of the updates via snapshots and Bedrock beta updates. The next Snapshot that slated to arrive in the game is 21w15a and here is all you need to know about it.

When will Minecraft Snapshot 21w15a release?
Minecraft Snapshot 21w15a is now live and available for download.
Minecraft Snapshot 21w15a - Patch Notes
Here are the patch notes of Minecraft Snapshot 21w15a.
CAVES & CLIFFS WORLD GENERATION
The riskier and technically more complex world generation changes for the Caves & Cliffs update will be shipped in a later update and have been switched off in this snapshot. This means:
THE CAVES & CLIFFS PROTOTYPE DATA PACK
You can still try out the world generation for the later update using a datapack which activates the changes as an experimental custom world:
Keep in mind that the world you create with the data pack will be flagged as experimental by the game, and such worlds are not guaranteed to work in future versions. Also, please note that you can’t add data packs that change the world generation to existing worlds, so you must create a new world to access the experimental features.
NEW FEATURES IN 21W15A
CHANGES IN 21W15A
New raw ore textures in snapshot 21w15a.Click herefor a link to the full resolution image.
BUILDING BLOCKS TAB
TECHNICAL CHANGES IN 21W15A
Markers are a new type of entity meant for custom use cases like map making and data packs.
/DEBUG FUNCTION
New debug subcommand executes command with same syntax as function
CHAT COMPONENT SEPARATORS
CUSTOM SERVER RESOURCE PACKS
When require-resource-pack is used in server.properties, there’s now an option for servers to add a custom message.