Minecraft 1.21.5 — Client & Cheat Compatibility

Minecraft 1.21.5, known as the "Spring to Life" drop, added decorative blocks, mob variants, and world generation changes. Client support for 1.21.5 followed within weeks of release as developers updated their builds.

Quick summary

1.21.5 has strong client support from actively maintained clients. Fabric and Forge loaders are available. Some older modules may need testing on this version because world generation and rendering changed slightly. Check the client compatibility table below.

Supported clients

Client Status Loader Notes
Wurst Yes Fabric Stable
Meteor Yes Fabric Stable
LiquidBounce Yes Fabric Stable
Aristois Yes Standalone Stable
Future Partial Runtime Not officially listed for 1.21.5
Inertia Yes Fabric Stable
Raven Partial Forge / Fabric Not officially listed for 1.21.5

Supported cheat modules

All 32 tracked cheat modules work on 1.21.5. See the full cheat database for module details.

Version-specific notes

  • 1.21.5 introduced data-driven mob variants and decorative block sets. Rendering modules like ESP and Chams may need minor updates to handle new entity types.
  • World generation added new biome features. X-Ray behavior is unchanged because it operates on block data, not biome data.
  • Client builds for 1.21.5 were published later than those for 1.21.1. If you want maximum community-tested configurations, 1.21.1 remains the safer choice.

Server compatibility notes

  • Hypixel supports 1.21.5 connections.
  • 2b2t accepts 1.21.5 clients.
  • CubeCraft accepts 1.21.5 connections.