We’re excited to announce the release of Extreme Launcher v5! Our previous .NET-based codebase proved difficult to maintain and lacked key features like full mod support.
In response, we’ve rebuilt Extreme Launcher from the ground up. Version 5 is a next-generation launcher based on a fork of PrismLauncher/MultiMC, completely independent from those projects.
The new Extreme Launcher retains all the functionality of the previous version while adding enhanced features like multi-account support, improved Java detection, streamlined mod installation and management, and much more.
Please note that Extreme Launcher v4, specifically version 4.0.15, will be the final release for the previous version. While it will still work, it lacks critical stability updates, new features, and mod support.
We strongly encourage all users to upgrade to v5 for the best experience.