---
title: Deprecated symbols
framework: metal
role: collectionGroup
role_heading: API Collection
path: metal/deprecated-symbols
---

# Deprecated symbols

Review unsupported symbols and their replacements.

## Topics

### Deprecated methods

- [useResource(_:usage:)](metal/mtlrendercommandencoder/useresource(_:usage:).md)
- [use(_:usage:stages:)](metal/mtlrendercommandencoder/use(_:usage:stages:).md)
- [useResources(_:usage:)](metal/mtlrendercommandencoder/useresources(_:usage:).md)
- [use(_:count:usage:stages:)](metal/mtlrendercommandencoder/use(_:count:usage:stages:).md)
- [useHeap(_:)](metal/mtlrendercommandencoder/useheap(_:).md)
- [use(_:stages:)](metal/mtlrendercommandencoder/use(_:stages:).md)
- [useHeaps(_:)](metal/mtlrendercommandencoder/useheaps(_:).md)
- [use(_:count:stages:)](metal/mtlrendercommandencoder/use(_:count:stages:).md)
- [textureBarrier()](metal/mtlrendercommandencoder/texturebarrier().md)