| Field | Xcode 1.5 | Xcode 1.2 | Diff |
|---|---|---|---|
| Release type | stable | stable | same |
| Edition | - | - | same |
| Release date | 2004-08-04 | 2004-04-22 | different |
| Minimum macOS | 10.3 | 10.3 | same |
| Swift | unknown | unknown | same |
| iOS SDK | unknown | unknown | same |
| Build | 7K571 | 7K249 | 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。