The remastered version, Update v1.0.3-CODEX, refers to a specific patch for the game. CODEX is a group known for cracking and releasing game patches.
Before diving into fixes, it is vital to understand the nomenclature.
The v1.0.3-CODEX release includes a suite of fixes for quest-breaking bugs that had persisted since 2012. Additionally, performance on mid-range GPUs was stabilized, reducing the frame rate drops often seen in crowded areas like Boston and New York. The Content Package: More Than Just the Base Game
To give you a concrete sense of progress:
