Removals
Everything that left the pack in this release: content that no longer exists, and the mods that were dropped.
White Metal removed from the game
White Metal has been completely removed. Its only remaining use, the Electric Snips recipe, went away earlier in 2.9, leaving it with nothing but auto-generated dust and plate recipes. Any existing White Metal items in your world will be deleted.
items disappear - 1 of these change(s). The steps are on the Before you update page.
Shipped in: GT5-Unofficial #6807, NewHorizonsCoreMod #1768
Removed deprecated machines from v2.8
The Slicing Machine and Tool Casting Machines, both deprecated since version 2.8, have been fully removed. Any remaining recipes have been migrated to other machines.
items disappear
Shipped in: GT5-Unofficial #5648, GT5-Unofficial #5646
GT5-Unofficial
#6301 [items disappear] GregTech's own material capsules have been removed: the per-material capsule and molten capsule items are no longer registered, and their GT recipes and NEI entries are gone. Forestry's wax and refractory capsules keep working and stay craftable, now at three wax each to match Magic Capsule cost. - @UltraProdigy
- What to do: The four GT capsule and molten-capsule item types are unregistered with no replacement, so a GT-fluid-filled wax or refractory capsule you were holding disappears on first load. Almost nobody has these; they were hidden from NEI in 2.8.4. Forestry's own capsules keep working, you just cannot fill them with GT fluids.

#6691 [items disappear] Removed PTMEG (Polypropylene Terephthalate Methyl Glycol) and associated chemicals that were only used to craft it. This simplifies the material pool without breaking existing gameplay. - @YannickMG
- What to do: PTMEG Elastomer, Polytetrahydrofuran, Tetrahydrofuran, Acidicised 1,4-Butanediol, Tungstophosphoric Acid, Toluene Diisocyanate and Toluene Tetramethyl Diisocyanate are all removed, with no recipe to convert them. Their dusts, ingots, plates, cells and placed blocks disappear on first load, turning into dirt or nameless stacks, and any of their fluids left in tanks or pipes is lost. ZPM and higher recipes no longer use PTMEG.

#5595 [read before updating] Removes the duplicate imposter Zirconium material that has been deprecated for years. Only affects worlds older than 2.6 with stored imposter Zirconium items. - @UltraProdigy
- What to do: This only matters if your world is very old. The deprecated duplicate Zirconium material is gone; it could not be obtained at all in 2.8.4, so only worlds carried over from several versions back can hold any. Those dusts and ingots become nameless unusable stacks rather than being cleanly removed. The real Zirconium is untouched.
#5718 Removed Water Detection Module extrusion molds entirely. These items no longer serve a purpose in the endgame progression. Note: requires questbook updates to prevent crashes. - @chrombread
- Note: The White Dwarf Matter extrusion molds are removed. They had no use in 2.8.4, so almost nobody made any; if you did, three of them (Plate, Rod and Bolt) become Exotic, Cosmic and Transcendent Circuit Boards because their item ids were reused, and the rest become nameless unusable stacks.
...and 2 smaller change(s) in GT5-Unofficial, listed in the by-mod files.
GTNH-TC-Wands
- #26 Removed the Chromaticraft (CHC) wand recipe because it no longer works with the current Chromaticraft integration. - @RealSilverMoon
- Note: Crafting wands with Chromatic Harmonic Conduction recipes is no longer possible; existing wands are unaffected.
Mods removed from the pack
Removing a mod can affect an existing world. Check each before updating a save.
- AE2NoUltimatePatterns
- Automagy -> replaced by Automagy-GTNH
- BrandonsCore
- CropLoadCore -> replaced by CropsNH
- Crops-plus-plus -> replaced by CropsNH
- IC2 Crop-Breeding Plugin -> replaced by CropsNH
- Morpheus
- NotEnoughIds -> replaced by EndlessIDs
- Pam's Harvest the Nether -> replaced by Fether
- TCNEIAdditions
- Thaumcraft NEI Plugin
- ae2stuff
Contributors
Everyone who authored, reviewed or co-authored a change on this page, with how many of them:
@UltraProdigy (7), @Dream-Master (5), @boubou19 (2), @chrombread (2), @danyadev (1), @FourIsTheNumber (1), @RealSilverMoon (1), @serenibyss (1), @YannickMG (1)