AntiShadowPatch

Brings back the technical bugs that Mojang have patched

13.5K Downloads

fabricutility

Rent Server with this Mod

About this Mod

AntiShadowPatch

Info

AntiShadowPatch is a mod that aims to reimplement bugs that Mojang patched without any mention in the changelogs(shadow patched).

Extra features that won't be included in this mod will be included in NotSoShadowExtras (like updateSuppressionCrashFix and
disableLightRecalculation)

The list of features(as of 2.1.7)

StackOverflow Update Suppression (patched in 22w11a)
CCE Update Suppression (patched in 23w35a)
Entity ID Suppression (patched in 26.2-pre-1)
Trapdoor Update Skipping (patched in 1.20-pre2)
Tile Entity(Block Entity) Swap (patched in 1.21.1-rc1)
Graceful OOM handling (changed in 23w35a)
Graceful StackOverflow Handling (changed in 1.18-pre2)
Item Shadowing 1.17 (patched in 21w43a)
Item Shadowing 1.18 (patched in "unknown, needs testing")
Shadow Items in a Mob Inventory (patched in 22w44a)
Furnace XP Dupe (patched in 23w35a)
Floating Redstone Components On Top Of Trapdoor (patched in 23w35a)
Old Dragon Freezing (changed in 1.20-pre1)
Ender Dragon Overworld Transportation (patched in 24w21a)
1.14 Chunk Save State (patched in 19w35a)
1.21 Chunk Save State (patched in 24w33a)
Armor Stands invulnerable to wither damage (patched in 1.20.2 pre-4)
Voidless Void Trading (patched in 24w44a)
Overstacking of Curse Books (patched in 24w10a)
Overstacked Item Movement (patched in 24w12a, 24w33a)

By default, everything is enabled, except for potentially dangerous features, such as chunk save states.

Available Versions

AntiShadowPatch 2.1.7release

MC 26.2-pre-4, 26.2-pre-5fabric

June 9, 2026

AntiShadowPatch 2.1.6release

MC 26.1, 26.1.1, 26.1.2fabric

May 2, 2026

AntiShadowPatch 2.1.5release

MC 1.21.10, 1.21.11fabric

December 10, 2025

AntiShadowPatch 2.1.4release

MC 1.21.10, 1.21.11fabric

December 7, 2025

AntiShadowPatch 2.1.3release

MC 1.21.8fabric

December 7, 2025

How to Install AntiShadowPatch on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (26.2-pre-5).

Install Mod

Open the mod browser in the dashboard and search for "AntiShadowPatch". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.2-pre-5, 26.2-pre-4, 26.1.2 (+23 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

AntiShadowPatch server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.2-pre-5). You can switch loaders with one click in the panel.

Is AntiShadowPatch compatible with fabric?

AntiShadowPatch officially supports fabric for Minecraft 26.2-pre-5, 26.2-pre-4, 26.1.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with AntiShadowPatch – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if AntiShadowPatch consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.