How to Update a SevTech: Ages Server | Safer 2026 Guide
SevTech: Ages has shipped patches over its life that fixed real, specific crash bugs — not just content additions — which makes checking the changelog worth doing even on a server that feels stable right now.
Already crash-looping? See the SevTech: Ages crash-fix guide, or the SevTech: Ages pack page.
1. Back up the world before updating
Age progression, custom biome data and base builds all live in the world save. A full backup before touching the pack files is the baseline, not optional — especially given how much world-generation state this pack tracks.
2. Read the changelog for crash fixes
SevTech: Ages patches have specifically fixed things like a Mob Grinding Utils fan-breaking crash and multiple world-generation crash bugs over time. If you've been avoiding a specific action to dodge a known crash, check whether it's been patched.
3. Install the matching Forge 1.12.2 server pack
- Download the server pack for your target version from CurseForge — not the client pack.
- Shut the server down with the stop command before swapping files.
- Install into a clean mods folder; a messy folder with leftover jars from the old version is a classic source of post-update crashes.
4. Confirm Java 8 and LWJGL 2.9.4 are still correct
This pack needs Java 8 and LWJGL 2.9.4 regardless of version — worth a quick check after any environment or host change, since a newer default JVM will prevent the server from launching at all.
FAQ
Will updating reset my Age progression?+
It shouldn't — Age progression is tracked in the world save, not the pack files — but a backup before updating is still the only real protection if a specific patch changes how that state is read.
Do I need to update Java or Forge separately?+
No — SevTech: Ages stays on Forge 1.12.2 with Java 8 across its updates. The server pack bundles the matching Forge installer, so a clean install carries the right version automatically.
Is there a reason to update proactively, not just when something breaks?+
Yes — SevTech: Ages patches have fixed specific, documented crash bugs over time (a Mob Grinding Utils fan crash and several world-generation crashes among them). If you've been living with a workaround, check the changelog.
Update SevTech: Ages without losing Age progress
CoalHost keeps automatic backups ahead of every update and runs the correct Java 8 / Forge 1.12.2 stack for SevTech: Ages by default.
View SevTech: Ages Hosting →