The most important update for users is that

Once logged in, you can re-link your device (UDID) to see your purchased package history. Why the Change Occurred

The move from Packix to Havoc wasn't just a name change; it was a technical overhaul. Packix had become difficult to maintain due to its aging infrastructure. Havoc was built from the ground up to provide:

If you still have https://packix.com in your sources list, you are likely seeing "404 Not Found" or "Legacy" errors.

Open your package manager (Sileo, Zebra, or Cydia) and delete the Packix URL. Add Havoc: Add https://havoc.app to your sources.

Understanding the Packix Repo Transition: What You Need to Know

If you bought tweaks on ://packix.com and are worried about losing your money, don’t panic. The transition was designed to be user-friendly:

You can go to the Havoc website and log in using the same credentials (often via Discord, Google, or Patreon) that you used for Packix.

Improved package parsing for Cydia, Zebra, and Sileo.