Fix "Outdated server" / "Outdated client" in Minecraft

What "Outdated server" and "Outdated client" mean, how to create a launcher installation with the server's exact version, ViaVersion and ViaBackwards for server owners, and why modded servers need the exact same modpack.

  • 1:02 video
  • English captions & transcript
  • 4 November 2026

Transcript

The full narration, chapter by chapter. Click a time to play the video from there.

Intro

"Outdated server" or "Outdated client" in Minecraft? Both mean the same thing: your version doesn't match the server's. Here's which way to fix it.

Which message?

"Outdated server" means your game is newer than the server. "Outdated client" means your game is older. The message tells you the server's version.

Match the version

To fix it, open the Minecraft Launcher, go to Installations, and create a new installation with the server's exact version. Select it, press Play, and join.

ViaVersion

Running the server? Install ViaVersion on Paper or Spigot. It lets newer clients join, and with ViaBackwards, older ones too. So a launcher update never locks your players out.

Modded servers

On a modded server, it's stricter. Every player needs the same Forge or Fabric version, and the same modpack version. ViaVersion can't fix a mod loader mismatch.

Recap

Quick recap: match your launcher to the server version, or run ViaVersion on the server. Minecraft hosting at esagames.ro.

More video tutorials

  • 1:09
    Minecraft

    Best Minecraft modpacks to host in 2026

    The Minecraft modpacks worth hosting in 2026 and the RAM each needs: All The Mods 10, RLCraft, Create packs, Vault Hunters, Pixelmon, Better MC and Prominence, plus the RAM rule of thumb by mod count.

  • 1:01
    Minecraft

    Fix Minecraft "You need to agree to the EULA"

    Why a new Minecraft server stops on its first start and the one-line fix: change eula=false to eula=true in eula.txt (or flip the panel EULA toggle), plus what to do when eula.txt is missing or will not save.

  • 1:14
    Minecraft

    How to fix "Failed to login: Invalid session" in Minecraft

    Why Minecraft says "Failed to login: Invalid session" and how to fix it: restart the launcher, sign in again for a fresh token, the server-side online-mode check, and what to do if it keeps coming back.

Skip the troubleshooting

Managed, protected hosting in Frankfurt — we handle the Linux, the network and the DDoS so you don't have to.