
NonUpdate Reloaded
Blocking network connections to prevent update checks and reduce Minecraft startup time
About this Mod
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
Available Versions
How to Install NonUpdate Reloaded 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 (1.21.4).
Install Mod
Open the mod browser in the dashboard and search for "NonUpdate Reloaded". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.4, 1.21.3, 1.21.2 (+15 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
NonUpdate Reloaded 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 (1.21.4). You can switch loaders with one click in the panel.
Is NonUpdate Reloaded compatible with fabric and forge and neoforge and quilt?
NonUpdate Reloaded officially supports fabric, forge, neoforge, quilt for Minecraft 1.21.4, 1.21.3, 1.21.2. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with NonUpdate Reloaded – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if NonUpdate Reloaded 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.
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Rent Modded Server
Install NonUpdate Reloaded with just one click on your server.