Unity SMP Vanilla+

🆙 Updated to Minecraft 1.21.1

The entire modpack has been rebuilt and optimized for the latest Fabric 1.21.1 version.
This includes:

• ✅ Full compatibility with the newest Fabric Loader and API.

• ⚙️ Updated libraries (Fabric API, MaLiLib, owo-lib, Konkrete, CraterLib).

• 🧩 Improved performance and reduced desync issues for multiplayer.

• 🎮 Verified mod stability on both server and client builds.

🧩 Core Library Updates

• Fabric API (modmuss50) — Updated to latest version for 1.21.1 support.

• Cloth Config API (shedaniel) — Improved UI rendering and configuration stability.

• owo-lib (gliscowo) — Updated backend networking for smoother mod intercompatibility.

• Konkrete (Keksuccino) — Updated for better config synchronization and performance.

• CraterLib (HypherionSA) — Enhanced cross-mod compatibility and stability.

• MaLiLib (masady) — Updated for full 1.21.1 compatibility with Litematica & MiniHUD.

• ModMenu Badges Lib (DuckyHatsu) — Updated to latest for proper mod menu tagging.

⚙️ Performance & Visual Enhancements

• Sodium (JellySquid) – Further improved chunk rendering efficiency and stability with shaders.

• Lithium (JellySquid) – Optimized server-side tick handling for better multiplayer performance.

• ImmediatelyFast (RaphiMC) – Updated with render-thread improvements for smoother FPS.

• Iris Shaders (coderbot) – Updated shader engine with full 1.21.1 support and visual bug fixes.

• Raised (yurisuika) – Updated for improved sky and cloud height handling.

• Fast IP Ping (Fallen_Breath) – Added for faster server list pinging and connection response times.

🧱 Building, Creative & Utility Mods

• Litematica (masady) – Updated for full 1.21.1 schematic compatibility; smoother rendering.

• MiniHUD (masady) – Updated to latest build; new overlay rendering improvements.

• Shulker Box Tooltip (MisterPeModder) – Updated UI preview; fixed tooltip scaling issues.

• Armor Poser (Mrbysco) – Added support for new 1.21 armor textures; minor pose fixes.

• Better Advancements (way2muchnoise) – Added customizable advancement display and sorting.

• Mouse Tweaks (YaLTeR) – Updated to latest version for refined inventory handling.

• Just Zoom (Keksuccino) – Updated zoom smoothness and camera movement.

🎮 Gameplay & Quality-of-Life Enhancements

• AppleSkin (squeek502) – Displays hunger, saturation, and exhaustion in HUD.

• Controlling (Jaredlll08) – Updated with new keybind UI and improved mod compatibility.

• Chat Heads (dzwdz) – Fixed head alignment and chat color compatibility issues.

• Status Effect Bars (A5b84) – Updated to cleaner icons and smoother fade animation.

• Searchables (Jaredlll08) – Enhanced UI search performance and category recognition.

• No Chat Reports (Aizistral) – Updated to support 1.21+ chat signing removal patches.

• Clumps (Jaredlll08) – Added for experience orb merging, improving FPS in mob farms.

💬 Multiplayer & Social Enhancements

• Simple Voice Chat (henkelmax) – Updated to 1.21.1; added improved distance audio fading and echo detection.

• Voice Chat Interaction (henkelmax) – Updated with smoother voice icons and UI feedback.

• Simple Discord RPC (HypherionSA) – Updated with more detailed Discord presence info.

🧠 Information & Interface

• Better Advancements (way2muchnoise) – New addition for a cleaner, easier-to-navigate advancement interface.

• ModMenu Badges Lib (DuckyHatsu) – Enhances visibility and sorting within Mod Menu.

🧰 Removed / Replaced

• ❌ Removed Bobby (client chunk caching) – compatibility conflicts with 1.21.1 render pipeline.

• ❌ Removed ArmorPoser Legacy Config – merged into updated version by Mrbysco.

• 🧩 Replaced outdated config entries for Fabric and Iris with updated schema.

🧱 General Fixes & Improvements

• 🛠️ Improved overall stability and startup speed.

• 🔊 Fixed intermittent sound desync in multiplayer with Voice Chat.

• 🗺️ Fixed rendering issues with Sodium + Iris combo.

• 📦 Verified clean mod dependency graph (no duplicates or deprecated libs).

• ⚡ Added Fast IP Ping for faster multiplayer server list updates.

• ✅ Cleaned config defaults for easier setup on servers.

📅 Next Planned Update — v1.21.20 “Community Expansion”

Planned features:

• Add optional minimap mod (compatible with Fabric).

• Add QoL pack for server operators (command tools, player info HUD).

• Introduce integrated performance preset configs.

• Enhanced resource pack loader and shader presets.

🧾 Summary

This update modernizes the entire Vanilla+ SMP pack to run seamlessly on Minecraft 1.21.1, focusing on:

• ⚙️ Performance stability

• 🧱 Builder & creative support

• 💬 Enhanced multiplayer interaction

• ✅ Clean, lightweight optimization