How do I install Minecraft 1.21.2 Snapshot 24w39a?

Open the Minecraft Launcher, go to Installations, create a new installation, select snapshot 24w39a from the dropdown, and launch. See our guide for detailed steps with screenshots.

Do I need a mod loader to run this snapshot?

No, snapshots run on vanilla Minecraft. You don't need Forge, Fabric, or any other mod loader. Just launch it directly from the Minecraft Launcher.

Are bundles now permanent in the game?

Yes. Bundles are officially out of experimental mode in this snapshot. They're now part of the core game and will be in the next full release.

Will my old datapacks and commands still work?

Some updates are needed. The boat entity system changed completely, and the container lock format was redesigned. If you use datapacks or custom commands, review the changes above.

Can I use this snapshot on my survival server?

Snapshots are testing builds and can be unstable. We recommend only using them in single player or dedicated test servers, not on important survival worlds.

Minecraft 1.21.2 Snapshot 24w39a - Download

Minecraft 1.21.2 Snapshot 24w39a

Minecraft 1.21.2 Snapshot 24w39a is ready to download. The big news here is that bundles are no longer experimental, they’re officially in the game now. You also get new invisibility mechanics for maps, a cleaner boat system, and updates to container locking. If you’re testing the latest features, this snapshot is worth checking out.

What’s New in This Snapshot

Bundles Are Official

Bundles are finally out of experimental mode. They work as a regular inventory item now, and the UI slot highlight has been updated so your item textures show up properly. If you’ve been using resource packs, the old bundle textures got moved to the Programmer Art resource pack.

Hide Your Player Marker on Maps

Equip a Carved Pumpkin and your player marker disappears from other players’ maps. This adds a new item tag called map_invisibility_equipment that controls which gear makes you invisible on the map. Useful for servers or if you just want some privacy.

Boats Got a Redesign

The boat system is now split into separate entity types instead of using a single boat type with variants. Each boat type now has its own entity: oak_boat, spruce_boat, birch_boat, and so on. The same goes for chest boats. If you’re working with datapacks or commands, you’ll need to update your code to use the new entity IDs like minecraft:oak_boat instead of the old system.

Here’s the breakdown of the new boat entities:

Regular boats: oak_boat, spruce_boat, birch_boat, jungle_boat, acacia_boat, cherry_boat, dark_oak_boat, mangrove_boat, bamboo_raft
Chest boats: oak_chest_boat, spruce_chest_boat, birch_chest_boat, jungle_chest_boat, acacia_chest_boat, cherry_chest_boat, dark_oak_chest_boat, mangrove_chest_boat, bamboo_chest_raft

Container Locks Changed

The lock system for containers has been updated. The Lock field is now called lock and uses item predicates instead. This means any item matching the predicate can open the container. The lock data component also now uses item predicates, giving you more flexibility with custom items and datapacks.

Other Changes

Data Pack version bumped to 55
Removed the bundle feature flag and built-in datapack, since bundles are now core
The boat entity sub-predicate was removed since boats no longer use variants

How to Install

Installing snapshots is straightforward. You’ll need Java and access to the Minecraft launcher.

Open the Minecraft Launcher
Go to the Installations tab
Click Create New and select the snapshot version 24w39a
Launch and play

For detailed instructions with screenshots, check out our full guide on how to download and install Minecraft snapshots.

System Requirements

You’ll need Java Runtime Environment to run this snapshot. Most Windows and Mac installations come with Java, but if you don’t have it, you can grab it from Oracle’s website.

Download Minecraft 1.21.2 Snapshot 24w39a

Client: Download

Server: Download

Minecraft 1.21.2 Snapshot 24w39a – Download