Vanilla-V2

Removed Mods (43):

Non-vanilla content: Better End, Better Nether, Better Furnaces Reforged, Bartering Station, Experience Bottler, Reinforced Barrels/Chests/Shulker Boxes
Unavailable for 1.21: AdvancementInfo, Carpet Fixes, Eating Animation, Fast Entity Transfer, FastAnim, LazyDFU, Memory Leak Fix, More Frogs, More Mob Variants
Replaced mods: You're in Grave Danger, Immersive Paintings → Macaw's Paintings, Smooth Swapping → Smooth Scroll, SleepWarp → SleepWarp (Updated)
Duplicate functionality: Promenade/Adorn/Galosphere -> Clutter
Redundant/Unnecessary: Dynamic FPS (replaced by IdleTweaks), Woof (now vanilla functionality)
Unused libraries: Dawn API, Forge Config API Port, Fabric Language Kotlin, BCLib, Geckolib

Visual improvements: Advancement Plaques, Animated Doors, CIT Resewn, Continuity, Enhanced Block Entities, Entity Model/Texture Features, FabricSkyBoxes Interop
Performance optimizations: EntityCulling, FastQuit, More Culling, Remove Reloading Screen, SmoothGui
Quality of life: Better Advancements, Better Mount HUD, Controlify, Fabrishot, More Chat History, Smooth Scroll
Gameplay additions: Blasting Plus, Distant Horizons, EndRespawnAnchor, Inmis (backpacks), Macaw's Paintings, Moog's End Structures, Random Village Names, True Ending: Ender Dragon Overhaul, YUNG's Better Nether Fortresses
Technical/Security: No Chat Reports, Packet Fixer, MixinTrace, YOSBR
APIs and libraries: Cloth Config v15, YUNG's API, TCD Commons API, GeckoLib 4

Core & optimization mods: Fabric API (0.86.1→0.115.1), Lithium (0.11.2→0.14.8), Sodium (0.4.10→0.6.9), ModernFix (5.4.2→5.20.2), FerriteCore (6.0.0→7.0.2-hotfix)
Visual enhancements: Iris (1.6.4→1.8.8), LambDynamicLights (2.3.1→3.1.4), WaveyCapes (1.3.2→1.5.1), FabricSkyBoxes (0.7.2→0.7.4), NotEnoughAnimations (1.6.4→1.9.2)
UI improvements: BetterF3 (7.0.1→11.0.3), Better Statistics Screen (2.10.3→3.13.8), Mod Menu (7.2.1→11.0.3), Jade (11.3.0→15.8.3), Roughly Enough Items (12.0.634→16.0.799)
Gameplay mods: AmbientSounds (5.2.20→6.1.4), Clutter (0.3.9→0.6.5), Creeper Overhaul (3.0.1→4.0.6), Wilder Wild (2.1.1→3.0.11), Xaero's Minimap/World Map (23.6.0→25.1.0)
Sound and immersion: Sound Physics Remastered (1.20.1-1.1.1→1.21.1-1.4.8), Presence Footsteps (1.9.0→1.10.3), ClientSideNoteblocks (2.6→2.8)
Performance tweaks: Alternate Current (1.7.0→1.9.0), Faster Random (1.3→5.1.0), ImmediatelyFast (1.1.19→1.3.4), Cull Leaves (3.1.0→4.0.1)
Smaller additions: Animal Feeding Trough (1.0.3→1.1.2), AppleSkin (2.5.0→3.0.6), Capes (1.5.2→1.5.4), Simple Copper Pipes (1.13.3→2.0.4), Zombie/Skeleton Horse Spawn, Tax Free Levels

Keep vanilla-like experience by removing content mods that added too non-vanilla functionality
Enhanced performance by merging new mods from Fabulously Optimized
Improved UI by adding various smooth animation mods
Expanded world generation with YUNG's Better Nether Fortresses and Moog's End Structures