| Field | Xcode 16.4 RC 1 | Xcode 16.3 RC 2 | Diff |
|---|---|---|---|
| Release type | RC 1 | RC 2 | different |
| Edition | - | - | same |
| Release date | 2025-05-15 | 2025-03-27 | different |
| Minimum macOS | 15.3 | 15.2 | different |
| Swift | 6.1.2 | 6.1 | different |
| iOS SDK | 18.5 | 18.4 | different |
| Build | 16F6 | 16E140 | different |
建议：如果你是生产环境主力开发，优先选择 stable 版本；如需验证新 SDK，再考虑 beta。