您可以在 In Project、Unity Registry 或 My Registries 中更新包：
打开 Package Manager 窗口，然后从 Packages 下拉菜单中选择 In Project。
The lock icon () indicates that this package and version is locked to an installed feature set. To unlock the package and select another version, click the Unlock button.
Note: The package is only temporarily unlocked. If you change to a different list context, or close either the Package Manager or the Editor, the package reverts to being locked again. However, if you switch versions when the package is unlocked (for example, with the Add package by name method), the package stays unlocked.
Note: If you see the See other versions link after expanding the package, you can click it to see the list of all available versions for that package.
Select any version of the current package to see the details specific to that version in the details view.
Click the Update to button.
When the progress bar finishes, any new functionality is immediately available.
注意：如果您切换到包的旧版本，则可能必须对包内容运行 API Updater。