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# USDLayer.ChangeList

A list of changes made to a layer.

```
struct ChangeList
```

## Overview

Used by the layer change notification system to describe what
modifications occurred between two states of a layer.

## Topics

### Structures

[`struct Entry`](/documentation/USDKit/USDLayer/ChangeList/Entry)

A single change entry describing modifications at a path.

### Instance Properties

[`var entries: [(USDLayer.Path, USDLayer.ChangeList.Entry)]`](/documentation/USDKit/USDLayer/ChangeList/entries)

All change entries, keyed by the path of the affected spec.

## Relationships

### Conforms To

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`Copyable`](/documentation/Swift/Copyable)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`Escapable`](/documentation/Swift/Escapable)

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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