| Field | Xcode 4.4.1 | Xcode 4.4 | Diff |
|---|---|---|---|
| Release type | stable | stable | same |
| Edition | - | - | same |
| Release date | 2012-08-07 | 2012-03-15 | different |
| Minimum macOS | 10.7 | 10.7 | same |
| Swift | unknown | unknown | same |
| iOS SDK | unknown | unknown | same |
| Build | 4F1003 | 4F134 | 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。