26 lines
1.2 KiB
Markdown
26 lines
1.2 KiB
Markdown
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---
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uid: arcore-upgrade-guide
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---
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# Upgrading to ARCore XR Plug-in version 4.2
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To upgrade to ARCore XR Plug-in package version 4.2, you need to do the following:
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- Update handling of null native ARCore objects.
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- Use Unity 2020.3 or newer.
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**Update handling of null native ARCore objects**
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- The following properties have been deprecated:
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- `ArSession.IsNull` => Compare to `null` instead.
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- `ArSession.Null` => Use [`default`](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/default) instead.
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- `ArConfig.IsNull` => Compare to `null` instead.
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- `ArConfig.Null` => Use [`default`](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/default) instead.
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- `ArCameraConfig.IsNull` => Compare to `null` instead.
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- `ArCameraConfig.Null` => Use [`default`](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/default) instead.
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- `ArCameraConfigFilter.IsNull` => Compare to `null` instead.
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- `ArCameraConfigFilter.Null` => Use [`default`](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/default) instead.
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**Use Unity 2020.3 or newer**
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This version of the package requires Unity 2020.3 or newer.
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