---
title: AnchorUpdateSequence
framework: arkit
role: symbol
role_heading: Structure
path: arkit/anchorupdatesequence
---

# AnchorUpdateSequence

An asynchronous sequence of updates to anchors.

## Declaration

```swift
struct AnchorUpdateSequence<AnchorType> where AnchorType : Anchor
```

## Topics

### Performing sequence operations

- [AnchorUpdateSequence.Iterator](arkit/anchorupdatesequence/iterator.md)

### Instance Methods

- [makeAsyncIterator()](arkit/anchorupdatesequence/makeasynciterator().md)

## Relationships

### Conforms To

- [AsyncSequence](swift/asyncsequence.md)

## See Also

### Tracking anchors over time

- [AnchorUpdate](arkit/anchorupdate.md)