Godot 4.4 Added .uid Files Everywhere. Here's What They Actually Do.

If you upgraded a Godot project from 4.3 to 4.4 and suddenly saw a wave of new .uid files next to every .gd and .gdshader , you were not alone. Every GitHub thread I found from early 2025 had someone asking whether to delete them, gitignore them, or commit them. The answer is: commit them. They are not noise. They fix a real problem Godot has had since day one, and understanding them is the difference between a clean refactor and a broken scene tree the next morning. The problem the .uid files s