ATM82026-10-22 · 7 min read

How to Update an ATM8 Server Safely

350+ mods means ATM8 updates have more surface area for a dependency mismatch than almost any other pack. Backup first, update the whole pack as one set, and verify carefully before reopening.

Running ATM8? See the ATM8 pack page.

Start with a restore point

Back up the world before touching anything — ATM8 worlds take real time to rebuild.

Update the whole pack as one set

  • Download the full new ATM8 release rather than swapping individual mods.
  • Match the Forge version to exactly what the new release specifies.
  • Move custom config overrides back in deliberately, checking each against the new default configs rather than overwriting wholesale.

Verify before you reopen the server

Let the full mod list load without errors — watch the console for any mod that fails to initialize — before inviting players back.

FAQ

Why are ATM8 updates riskier than smaller packs?+

350+ mods means more interdependencies that can mismatch. Always update the full pack together, never individual mods.

What should I check in the log after updating?+

Any mod that fails to initialize or throws a dependency-version warning — that's the signal to roll back if it looks serious.

What should I back up?+

The entire world and any custom config overrides you've applied.

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