Changelog

[1.2.1] — PO - Promethium Optimized

Released: April 2026

⚡ Performance

• Performance optimization — further improvements to rendering efficiency and memory usage
• FPS fine-tuning — additional optimizations building on v1.2.0 gains

💡 Lighting & Rendering

• Fixed: Lighting bugs — corrected several critical lighting calculation errors
• Lighting optimization — improved shadow rendering and light propagation performance
• Rendering improvements — enhanced visual fidelity and display accuracy

🌍 World Expansion

• The End overhaul — new biomes, structures, and architectural elements added to The End dimension
  • Multiple new structure variants for increased exploration variety
  • Enhanced biome ecosystem with unique visual characteristics
• The Nether expansion — new structures and biome improvements for The Nether dimension
  • Expanded structure generation with new architectural designs
  • Biome system refinements and fresh environmental variety

🔧 General Improvements

• Miscellaneous fixes and improvements — various quality-of-life enhancements and bug fixes

Update recommended for all users to experience the latest dimension expansions and lighting fixes.

New Mod List

• Abridged by Apollo
• AchievementOptimizer by Big_Energy
• Almanac by frikinjay
• Alternate Current by Space Walker
• AmbientSounds by CreativeMD
• Amplified Nether by Stardust Labs
• Animatica by FoundationGames
• Anvian's Lib by anvian
• AppleSkin by squeek502
• Architectury by shedaniel
• AttributeFix by Darkhax
• BadOptimizations by Thosea
• Balm by BlayTheNinth
• Better Archeology by Pandarix
• Better Biome ReBlend by FionaTheMortal, UTMG
• Better Compatibility Checker by Gaz(Gaz492)
• Better Mount HUD by Lortseam
• BetterF3 by cominixo, TreyRuffy
• BetterGrassify by UltimatChamp, JayemCeekay
• Bobby by johni0702
• Cardinal Components API by UpcraftLP, Pyrofab
• Carry On by Tschipp, Purplicious_Cow
• Chat Heads by dzwdz, Fourmisain
• Cherished Worlds by Illusive Soulworks
• Chunky Chunks by Chunky Chunks Team
• Cloth Config v20 by shedaniel
• Clumps by Jared
• Collective by Rick South
• Config Manager by TheBossMagnus
• Continuity by PepperCode1
• Controlify by isXander
• Controlling by Jaredlll08
• CorgiLib by Corgi Taco, Joseph T. McQuigg (JT122406)
• CreativeCore by CreativeMD, AriaFreeze
• Cristel Lib by Cristelknight
• Cubes Without Borders by Kir_Antipov
• CustomSkinLoader by xfl03, JLChnToZ, ZekerZhayard
• DarkTimer - Clear Entity Lag by GamerPotion, Rav115
• Debugify by isXander
• Disconnect Packet Fix by ascpixi
• Dungeons and Taverns by NovaWostra, Konci, MiziraGamez, Whity
• Dungeons and Taverns Ancient City Overhaul by NovaWostra, Konci, MiziraGamez
• Dungeons and Taverns Pillager Outpost Overhaul by NovaWostra, Konci, MiziraGamez
• Dungeons and Taverns Stronghold Overhaul by NovaWostra, Konci, MiziraGamez
• Dungeons and Taverns Swamp Hut Overhaul by NovaWostra, Konci, MiziraGamez
• Dynamic FPS by juliand665, LostLuma
• Dynamic Lights by Tschipcraft
• EnchantmentDescriptions by Darkhax
• EnhancedVisuals by CreativeMD, Sonicjumper
• EntityCulling by tr7zw
• Eternal Nether by Izofar, Fuzs
• ExploitationTimer by anvian
• Fabric API by FabricMC
• Fabric Language Kotlin by FabricMC
• Fabrishot by ramidzkh
• FallingTree by Rakambda
• FastQuit by contaria
• FerriteCore by malte0811
• Forge Config API Port by Fuzs
• GeckoLib 5 by Tslat, Gecko
• Gnetum by decce
• Gpu memory leak fix mod by
• Illager-Warship by Wario
• ImmediatelyFast by RK_01
• Immersive Optimization by Luke100000
• Incendium by Starmute, catter1, TheKingWhale, Rei_the_Goat
• Iris by coderbot, IMS212, Justsnoopy30, FoundationGames
• Ixeris by decce
• Jade by Snownee
• JamLib by Jamalam
• Journeymap by Mysticdrew, Techbrew, MemeSapiens
• Just Enough Items by mezz
• Just Enough Resources by way2muchnoise
• LambDynamicLights by LambdAurora
• Language Reload by Jerozgen
• Let Me Despawn by frikinjay
• Lithostitched by Apollo
• M.R.U by IMB11 (mineblock11)
• Main Menu Credits by isXander
• MidnightLib by Motschen
• MixinTrace by comp500
• Mob AI Tweaks by n0t_UN_Owen/NotUnaNancyOwen
• Mod Menu by Prospector, haykam821, TerraformersMC
• ModernFix by embeddedt
• More Culling by FX - PR0CESS, 1Foxy2
• Mouse Tweaks by Ivan Molodetskikh (YaLTeR)
• NetherPortalFix by BlayTheNinth
• No Chat Reports by Aizistral
• Noisium by coredex-source, Steveplays28
• Nullscape by Stardust Labs
• Oh The Biomes We've Gone by Joseph T. McQuigg (JT122406), AOCAWOL, YaBoiChips, Corgi Taco
• Oh The Trees You'll Grow by Corgi Taco
• Packet Fixer by TonimatasDEV
• Paginated Advancements by DaFuqs
• PrickleMC by Darkhax
• Puzzle by PuzzleMC, Motschen
• Puzzles Lib by Fuzs
• Reese's Sodium Options by FlashyReese
• Remove Reloading Screen by dima_dencep
• Remove Stardust Labs Intro Message by catter1
• RenderScale by Zelo101
• Resourceful Lib by ThatGravyBoat, Epic_Oreo
• Resourcefulconfig by ThatGravyBoat
• Right Click Harvest by Jamalam
• ScalableLux by Spottedleaf, ishland
• Searchables by Jaredlll08
• Server Pinger Fixer by JustAlittleWolf
• Simple Snowy Fix by KostromDan, Apollo
• Smart Particles by Andrew-Chedid
• Sodium by JellySquid (jellysquid3)
• Sodium Extra by FlashyReese
• Sodium Shadowy Path Blocks by Rynnavinx
• Sound Physics Remastered by Sonic Ether, vlad2305m, Max Henkel, Saint
• Sounds by IMB11 (mineblock11)
• Structure Layout Optimizer by TelepathicGrunt
• TabInfo by Me!
• Tectonic by Apollo
• TerraBlender by Adubbz
• Too Many Entities by Discusser
• Trade Cycling by Max Henkel
• Villager Names by Rick South
• Waystones by BlayTheNinth
• YetAnotherConfigLib by isXander
• Zoomify by isXander
• cupboard by Someaddon
• e4mc by skyevg
• quick-pack by Drex
• spark by Luck