Outdated server errors block join when the realm or server runs a different Minecraft version than your launcher profile.
Usually client-sideUpdated 2026-06-11
Java vs Bedrock mismatch
Java Edition cannot join Bedrock servers and vice versa. Confirm edition and exact version number in the server list.
How to fix step by step
- 1Read the server version in the multiplayer list error text.
- 2Open Minecraft Launcher → Installations → select matching version.
- 3Update Minecraft to the latest release or snapshot the server uses.
- 4Ask the server owner which mod loader (Fabric/Forge) is required.
- 5For Realms, ensure the realm owner updated the world.
- 6Reinstall only if version profiles are corrupted.
How OUTDATED-SERVER differs from related codes
- Error OUTDATED-CLIENT: Your Minecraft client version is older than the multiplayer server. (usually client-side)
- Error FAILED-TO-CONNECT: Minecraft Java or Bedrock could not reach the multiplayer server. (server or client)