
NonUpdate Reloaded
I don't know my version or loader
NonUpdate Reloaded
Blocking network connections to prevent update checks and reduce Minecraft startup time
Usage
Whether you're a gamer or a modpack creator, you've probably encountered that Minecraft sometimes gets stuck for an unknown reason when starting.
It is possible that network requests for certain mods (e.g. checking for updates, fetching patreon lists) are causing Minecraft's startup time to increase.
However, when you installed a whole bunch of mods, it's not easy to turn it off one by one in their config, and some mods may not be able to turn it off.
This mod might be able to help you by blocking network connections.
To allow network connections to specific hosts, add them to the whitelist in the config (config/nonupdate_reloaded.json).
Configuration
allowServerConnects
Default: true
When this option is true, NonUpdate Reloaded automatically and temporarily allows connections to server addresses when you connect to servers
isWhitelist
Default: true
When this option is true, the list option will be used as a whitelist
When this option is false, the list option will be used as a blacklist
list
Default: [ "$eminecraftservices.com", "$emojang.com", "$eminecraft.net" ]
NonUpdate Reloaded will allow/block addresses in this list
Prefixes
$r
Use regex to match addresses
Example: $r.+\.mojang\.com will match sessionserver.mojang.com or abc.mojang.com:123
$e
Matches when a connection address ends with the address
Example: $emojang.com will match sessionserver.mojang.com or abc.mojang.com:123
$s
Matches when a connection address starts with the address
Example: $swww will match www.mojang.com or www.minecraft.net:123
$c
Matches when a connection address contains the address
Example: $cminecraft will match minecraft.example.com or www.minecraft.net:123
No prefix
Example: hypixel.net will match hypixel.net or hypixel.net:25565
Example2: hypixel.net:25565 will only match hypixel.net:25565
Q&A
I can't join my server!
Please add the server address to the whitelist or set the allowServerConnects option to true in the config
Crash with log java.lang.UnsupportedOperationException: The Security Manager is deprecated and will be removed in a future release
Please add the java argument to your launcher's settings: -Djava.security.manager=allow
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as NonUpdateReloaded-2.1.2-fabric.jar — drop this file into the mods folder
- Download size: 191 KB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.