GregTech 6 NeoForge

[6.0.0-alpha.3] — biomes decide again, tools are heard and held right, machines cost less to draw

Fixed

• Ores that belong to a biome were not generated anywhere. Every worldgen entry restricted to a biome — ruby, cinnabar, topaz, the jaspers, emerald, gold in badlands, copper in savanna, 51 entries in all — asked "is this biome in my list?" and always got "no", because the biome arrived stripped of its identity. Four materials existed in no world at all: niter, pink diamond, alexandrite and dominican amber. The same loss silenced eight other things quietly: hay bales never took the humidity of their biome, bees always hatched with day genes instead of desert night ones, and a rock could not tell where it lay. Worlds generated before this release keep the ground they already have; newly generated chunks carry the ores.
• Tool sounds were silent. The wrench, the screwdriver and the beep failed in three different ways at once — the sounds were never registered (1.7.10 needed no registration), the list of them could not be read from inside a packaged jar, and the mining sound was played by a client-only call from code that now runs on the server. Sounds of an action are now born on the server and addressed to whoever caused them, exactly as they were heard in 1.7.10. A lost sound no longer disappears in silence: it names itself, its reason and its place in the log.
• Tools and swords were held wrong in hand. In 1.7.10 an item had exactly two hand poses and a flag chose between them; that flag had lost its meaning here, so every flat item was held the same way. Both poses are taken from the engine's own models now.
• Covers stayed visible after being removed. The packet that carries a machine's full state was applied to a reused block entity, and the part that was absent from the packet survived it.
• Other mods could not see any GregTech name. Item tooltips, waila-style overlays and mod config screens fall back to a second translation table on the client, which the mod never filled — so a neighbour mod asking for a GregTech name got the raw key. Both tables are filled now, from the one place the mod installs its names.
• Saplings and flowers blocked the world generator and would not grow on GregTech soil. The sign that means "a plant, easily displaced" covered a single block type here instead of every plant, so 58 of them — saplings of every wood, dandelions, torchflower — were treated as solid obstacles.
• Bottled potions and four loot entries were lost. A fluid could not be poured into the container declared for it, because the pairing was never registered: 76 of the 96 fluids that name a container had none. Potions in bottles also carried no vanilla potion data — they were nameless, colourless and had no effect when drunk. Both are restored, and the loot table for bottles is complete again.
• Swamp and ocean claimed land beyond their own biome. In 1.7.10 large water was a biome, so the original's biome list was enough to hold them; in this version the spill lies in the biome of the shore, and the guard did not recognise it.

Changed

• The client draws machines far more cheaply. Machine geometry was rebuilt every single frame; it is now kept and rebuilt only when the engine itself marks that part of the world as changed — the same signal vanilla uses to rebuild a chunk's mesh, and the same condition under which 1.7.10 rebuilt it. Reading the world no longer forces chunks to load, ore material is stored per chunk instead of per block entity, and a flight recorder writes a line every 30 seconds so a slowdown can be examined after the fact rather than reproduced.
• The log is quiet again. Ore blocks answered the engine's block-entity contract in a way that made it warn on every one of them — hundreds of thousands of lines on an old world.

Changed

• Licensing and attribution were audited across the whole distribution and brought in order. Thirteen files had lost the licence notice they were published with, and their copyright line had been rewritten — both are now restored verbatim from upstream. Every file carried over from GregTech 6 now also states that it was modified in 2026 for this port, as the licence requires, and the files written for the port carry their own authorship instead of upstream's.
• NOTICE records where every shipped component comes from: which assets are upstream's CC0 work and which were made here, that no GregTech logo (the one non-free component upstream has) is part of this distribution, and that the classes sitting in other mods' package names are compile-time stand-ins written from scratch — not those projects' code. Each such file now says so in its own header as well.
• README and the in-game mod list state plainly that this is an unofficial port, not affiliated with or endorsed by Gregorius Techneticies, and that problems belong in this issue tracker rather than upstream's.

Added

• A release can now be verified without trusting the author. Two independent checks: GitHub attests that the published jar was built by this repository's release workflow from the tagged commit (gh attestation verify), and the build itself is now reproducible — archive timestamps and file order are pinned, so building a tag on any machine yields a byte-identical jar whose checksum must match the published one. Measured rather than intended: a jar built on Windows and the one CI builds on Ubuntu from the same commit are byte-identical, and the digest GitHub attests is the one a local build produces. Two causes had to be removed — archive timestamps and ordering, then line endings, which Windows expands on checkout and which reach the jar as they sit on disk. The check was also run with the settings off, to prove it can fail: without them the same source produced two different jars. The jar is still not code-signed, deliberately — the loader ignores mod signatures entirely.