TerraFirma: Rebirth 4.1.21 Release — Changelog

Release date: August 28, 2026 (Beijing time), exact time depends on CurseForge approval — global release. Where: CurseForge (client) · Server pack via Discord + Quark (China). Official servers: The US official 4.1.21 Release server opens at launch — no wipe, IP is built into the pack's multiplayer list. China server online as well. Community: https://discord.gg/Fc7v5EXmkK

This is the stable Release build, recommended for long-term survival worlds. Found a bug? Tell us on Discord.

Highlights

• Balloon envelopes now use cloth, not wool. Crafting: 1 cloth + 2 sticks = 4 envelopes; deployer: 1 cloth + 1 stick = 6. Burlap, wool cloth and silk all work. Create white sails match (1 cloth + 1 stick + 1 andesite alloy = 4 sails). Jute farms are now the foundation of your airship industry.
• Rubber deadlock broken. The spout now uses leather (copper casing + leather) instead of rubber — craftable in year one.
• Vehicle freeze fixed. Flying/driving into unloaded chunks no longer permanently freezes chunk loading and strands your vehicle mid-air (dynamic-lights mod rolled back to the stable build).
• Re-entry clamp. New in-house mod cosmo-return-clamp: deep-space re-entry landings are clamped to X ±39000 / Z ±20000 (matching the X ±40000 world border). Ship and crew land together — no more 300,000-block rescues.
• Tool-swap upgrade fixed. New in-house mod tfc-ability-fix: Sophisticated Backpacks' tool swap now recognizes TFC metal tools (shovel for dirt, pick for stone, axe for logs; hammers count as pickaxes).
• Kaleidoscope Tavern + our TFC compat — four TFC-climate grape colors, wild grapevines, trellises, grape juice and a full winemaking chain, with a brand-new 12-quest chapter.
• Astikor carts (Redux + TFC compat) — animal-drawn logistics: hand carts, supply wagons, plows, reapers, seed drills. 5 new quests, fully localized.
• Create: Tracks+ — track mounts, suspension tracks, drive wheels and the suspension key, fully translated, plus a new "Tracked Movement" quest in the Aeronautics chapter.
• 17 tavern drinks redesigned — every drink now has a reason to exist (see below).
• Quest book now in 4 languages — Chinese, English, Spanish and Russian (1,947 entries each, zero English left over in ES/RU).

Major mechanics & balance

• Bronze system fix. Pure-lead bronze removed; leaded bronze is now a low-tin variant (Cu 88–92% + Sn 2–12% + Pb 0–10%). New arc furnace recipe: 9 copper + 1 lead = 10 bronze. Inferior ingots can't enter industrial alloy lines.
• Andesite alloy shafts can now be forged on a tier-1 copper anvil (was tier 3) — Create progression opens up early.
• Netherite armor restored: blue steel armor pieces + netherite ingot, same cost as before.
• Sugarcane ethanol restored to 200 mB in the industrial fermenter (upstream had cut it to 80).
• Cold Sweat eased again: 0–40 °C is the no-damage band, and temperature change rate was halved once more.
• Tavern drink effects (quality-scaled): Beer = Strength · Cider = Absorption · Purple wines = Night Vision (duration scales) · Whiskeys = Nausea at low quality, Strength from Q3, Tipsy from Q5 · Vodka = Resistance · Rum = Tipsy + Bad Omen (pirate easter egg) · Sake = Slow Falling. Red wines (Regeneration) and white wines (Speed) unchanged.
• Item vaults & silos can no longer be physicized — fixes a dupe where physicized vaults dropped twice.
• TFC gravity blocks can't be placed on physics structures — dirt, grass, sand, gravel etc. are rejected with a red "This block cannot be physicized!" message.
• Nether → Overworld teleport freeze fixed (only that direction is watched; arrivals beyond ±19500 are clamped to a safe border position; normal Overworld teleports unaffected).

Bug fixes

• Biodiesel can now be bucketed or pumped into the burn chamber.
• Rice (and other bowl foods) no longer eats your bowl — the bowl is returned.
• All 301 cart parts (43 woods × 7 cart types) now have models, names and recipes; the missing supply wagon recipe is in.
• Rennet texture fixed; AFC food shelves & hangers now work inside valid cellars.
• Smart filter craftable again (brass nuggets obtainable); quest tasks that showed filter icons show real items again.
• Redstone components craftable again: piston, dropper, dispenser, lever, tripwire hook, repeater, stone button, stone pressure plate, target block, lightning rod, redstone contact — materials aligned to TFC.
• TFC copper sheet + wire cutters → Create copper sheet (fixes broken chains); crimson/warped stems (Beneath) work on the saw and cutting board.
• Cuisine Delight spatulas/skillets can hang on tool racks.
• Lecterns unified to vanilla: the ~36 TFC/AFC/Beneath wooden lecterns are hidden; new recipe = 4 any lumber + 1 any bookshelf. The wireless redstone controller works properly on the vanilla lectern (no more fake-book GUI); old TFC lecterns stay breakable with a retrieval hint.
• "kubejs error find 1 / find 50" startup errors fixed.
• Forced Unicode font on Latin-script clients fixed (classic font back; CJK unaffected).
• Eratosthenes pole messages and Cosmonautics strings localized ("cannot enable hud outside of deep space" etc.).
• "Unknown ingot" (botched-alloy result) tooltip now in all 4 languages; orange stained-glass arc furnace recipe uses 2 hematite powder.
• Vegetable oil unified between IE squeezer and Electro Energetics work basin.
• Goat/yak milk cheese path confirmed (rennet + burlap).
• Greenhouse/cellar detection fixed on servers (including sealing bricks and vanilla greenhouse blocks).

New content

• Field Guide Chapter 0 — "Reborn as a Caveman on Terra": every global pack change, beginner tutorial, JourneyMap & FTB Chunks how-tos, multiplayer rules, default keybinds, credits and version info, with pictures and clickable links.
• Real World note (quest + guide page): the pack ships a real-world mod — by default you spawn at the real geographic coordinates of Beijing, China.
• New Bronze-Age quest "Kiln & Firebox" with a community-contributed picture tutorial.
• Main menu overhaul: stone-carved TERRAFIRMA / REBIRTH logo, reworked button layout, language & accessibility buttons restored, 9-scenery slideshow, server-hosting button, Wabbanode partner icon.
• JourneyMap Shared Maps and Wabbanode Companion added.
• FTB auto-backup interval raised to 48 h.
• New "Terracotta-360 Guard" sweeper: clears dropped items every 2 hours with 60/30/10/5 s warnings.

Mod changes (4.1.20 → 4.1.21)

Added: Kaleidoscope Tavern 1.2.0 (+ in-house kaleidoscopetfctavern 1.0.0) · AstikorCarts Redux 1.2.4 + TFC AstikorCarts 1.2.4 · Create: Tracks+ 1.0.6b · JourneyMap Shared Maps 1.1.1 · Wabbanode Companion 1.0.1 · in-house: tfc-ability-fix 1.0.0, cosmo-return-clamp 1.0.0

Updated: Firmalife → 3.0.12 (back to the official build — beehive, keg, fruit-tree and planter fixes) · FirmaLifeHardCore 0.3.1 → 0.3.3 · ArborFirmaCraft 2.1.2 → 2.1.3 · Beneath 2.0.3 → 2.0.4 · Cuisine TFC 1.4.0 → 1.4.1 · Farmers TFC 2.1.6 → 2.1.7 · Schematic Checker 2.27.43 → 2.27.45 · TFC Sophisticated Backpacks Upgrade 0.3.0 → 0.3.1 · Aeronautics Transmission & Linkage 0.2.5 → 0.2.7 · Chat Heads 0.15.6 → 0.15.7 · Sable Dynamic Lights 2.0.1 → 1.0.0 (intentional rollback, fixes the vehicle freeze)

Removed: TFC Regrowing Forests · Firmalife-TFCR custom build (superseded by official 3.0.12)

Quest book & localization

• Full Spanish & Russian quest translations (1,947 entries each); QQ/Tencent links in non-Chinese books replaced with clickable Discord invites.
• Balloon quests rewritten for cloth envelopes; HOPG ingot quest rewritten (electrodes are pressed from powder + creosote; ingots can be crushed back).
• Crucible quest: 9 regular copper nuggets + 1 regular tin nugget in a vessel = bronze (90:10); ore-piece melt values corrected (poor 10 / regular 20 / rich 35→30 mB... see in-game text).
• Alloy quest explains the three bronzes and the arc furnace route; cheese quest notes wheels age automatically in a valid cellar (≤16 °C), no climate station needed.
• Hand-cart quest era corrected; bone-needle quest notes hides need tanning; seed quest notes wild herbs need a knife, not a hoe.
• Removed the outdated cotton/flax quest and the enchanting-table quest.
• A bold 4-language warning in the intro chapter: do NOT install ScalableLux yourself — the startup warning is normal.

Known issues (not bugs — please don't re-report)

• Netherite drill and knife stay disabled.
• Dispenser bows/string acquisition unchanged.
• Leather vanishing, cheese wheels, block-break rubber-banding, and hammers being consumed by some recipes are under investigation.
• Cross-dimensional travel beyond ±19500 is unreachable (the price of the freeze fix); normal Overworld teleports are fine.
• World border: X ±40000. Re-entry clamp: X ±39000 / Z ±20000.

From 3.4.1 to 4.1.21 — the journey so far

• 3.4.1 was the finale of the 1.20.1 Forge era: hardcore TFC + Create + Immersive Engineering + MEK + AE survival.
• 4.x is a full rebuild on 1.21.1 NeoForge: TFC 4.x, every KubeJS script rewritten, the quest book rebuilt chapter by chapter.
• The endgame was redefined: Aeronautics & Cosmonautics — from your first jute-field hot-air balloon to the Moon. TFC Aeronautics ties flight into TFC metallurgy and farming; deep-sea compatibility makes shipbuilding a way of life.
• Industry, TFC-ified: arc-furnace alloy lines, an electric grid, Create running on TFC materials, and an inferior-alloy system that makes botched crucibles dramatic but not fatal.
• Life got richer: tavern winemaking, Chinese cuisine, horse-drawn logistics, tracked vehicles.
• The pack went global: 4-language quest book, worldwide CurseForge release, official servers in China and the US.

Thanks for riding with us. See you on the Moon. 🌙