The addition of a "minimap" (which the original lacked), an inventory system similar to Borderlands 2 , and "auto-pick up" for ammo and money.
If you are looking at a file with this specific name from a third-party site, be aware of the following: Borderlands-Game-of-the-Year-Enhanced.rar
If you already owned the original Borderlands on Steam before the 2019 release, this Enhanced version was likely added to your library for free. System Requirements The addition of a "minimap" (which the original