Minecraft 1.21 — Client & Cheat Compatibility
Minecraft 1.21 was the base release for the 1.21 cycle, introducing trial chambers, the mace, breeze mobs, and several crafting changes. Client support for 1.21 remains strong, and most active clients maintain 1.21 builds.
Quick summary
Minecraft 1.21 is widely supported by current clients. Fabric and Forge loaders are available. Most cheat modules work without modification. Version-specific notes appear below for modules that interact with 1.21 content.
Supported clients
| Client | Status | Loader | Notes |
|---|---|---|---|
| Wurst | Yes | Fabric | Stable |
| Meteor | Yes | Fabric | Stable |
| LiquidBounce | Yes | Fabric | Stable |
| Aristois | Yes | Standalone | Stable |
| Future | Yes | Runtime | Stable |
| Raven | Yes | Forge / Fabric | Stable |
Supported cheat modules
All 32 tracked cheat modules are supported on Minecraft 1.21. See the full cheat database for module pages. Notable notes for this version:
- KillAura and other combat modules work with the 1.21 mace weapon.
- Fly uses the same detection profile as other 1.21.x versions.
- X-Ray is fully effective on servers without ore obfuscation.
Server compatibility notes
- Hypixel supports 1.21 connections. Client usage is prohibited by server rules.
- 2b2t accepts 1.21 clients. No anti-cheat active.
- CubeCraft accepts 1.21 connections. Client usage is prohibited by server rules.
Known limitations
- Some older Fabric mods may not yet be updated for 1.21. Check mod compatibility before combining with a client.
- Trial chamber generation interacts with X-Ray differently than standard terrain — ores are often hidden behind trial chamber walls.
- Mace combat introduces new attack patterns. KillAura with rotation smoothing may behave slightly differently against mace users.