This is Mod Pack Update Checker. It is a very simple thing. All it does is check a JSON file from a given URL through a config file for a "version" tag, and checks if the version from the URL is newer than the given version in the JSON file it is asked to search through. It runs at initialization and can be disabled through the configuration as well. Upon initial installation, the config values will be marked as UNKNOWN. If even one of these values is still UNKNOWN in the config file, the Update Checker will refuse to run and skip the update checking process.
This is for relatively larger modpacks who would like a simple, yet effective way to inform their players that a new update is available to them. Of course, they always have the ability to politely ignore by disabling the update checker in the configuration file, but it's better than nothing.
From time to time, I play a modpack named Rebirth of the Night, which is one of the few remaining modpacks I actually enjoy. The lead developer asked if someone wanted to write a mod that checks for update at startup and shows a GUI screen when the game loads, so here we are now. I will continue to add to this mod as I see fit, but as of right now, it is 100% complete (in terms of necessary features and functionality) and I will continue to sprinkle it with decorations over time as I see fit.
