| Field | Xcode 9.4.1 | Xcode 9.4 | Diff |
|---|---|---|---|
| Release type | stable | stable | same |
| Edition | - | - | same |
| Release date | 2018-06-19 | 2018-05-29 | different |
| Minimum macOS | 10.13.2 | 10.13.2 | same |
| Swift | 4.1.2 | 4.1.2 | same |
| iOS SDK | 11.4 | 11.4 | same |
| Build | 9F2000 | 9F1027a | 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。