How to reproduce:
1. Create a new project with the Unity 6.3
2. Go to Window -> Package Management -> Package Manager
3. Go to the "Unity Registry" and find Cinemachine
4. Observe the version near the Package name
Expected results: The version is latest (3.1.4)
Actual results: The version is 2.10.4
Reproducible with: 6000.3.0a2
Not reproducible with: 6000.1.10f1, 6000.2.0b10
Reproducible on: macOS Sequoia 15.5 (M1)
Not reproducible on: No other environment tested