14 lines
683 B
Markdown
14 lines
683 B
Markdown
---
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uid: xr-plug-in-management-upgrade-guide
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---
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# Upgrade Guide to 4.0.0
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Runtime behavior of **XRManagerSettings.loaders** property has changed to return a shallow copy of the list of loaders. This list can be operated on without affecting the original currently held list. However, the list itself can be set to a mutated list as long as it follows the following guidelines:
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* It only reorders the elements.
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* It only adds loaders that are of the same type as a loader that was present and registered prior to initial startup.
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* It only removes loaders.
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While this was always the intended runtime behavior for this collection, it was not actually enforced before this release.
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