<!--
{
  "availability" : [
    "iOS: 11.3.0 -",
    "iPadOS: 11.3.0 -",
    "macCatalyst: 11.3.0 -",
    "macOS: 11.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "ClassKit",
  "identifier" : "/documentation/ClassKit/CLSObject",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "ClassKit"
    ],
    "preciseIdentifier" : "c:objc(cs)CLSObject"
  },
  "title" : "CLSObject"
}
-->

# CLSObject

The abstract base class for objects managed by ClassKit.

```
class CLSObject
```

## Topics

### Accessing Object Information

[`dateCreated`](/documentation/ClassKit/CLSObject/dateCreated)

The date on which the object was created.

[`dateLastModified`](/documentation/ClassKit/CLSObject/dateLastModified)

The date on which the object was last modified.

## Relationships

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

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

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

[`NSSecureCoding`](/documentation/Foundation/NSSecureCoding)

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

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

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

[`NSCoding`](/documentation/Foundation/NSCoding)

### Inherited By

[`CLSProgressReportingCapability`](/documentation/ClassKit/CLSProgressReportingCapability)

[`CLSActivityItem`](/documentation/ClassKit/CLSActivityItem)

[`CLSActivity`](/documentation/ClassKit/CLSActivity)

[`CLSContext`](/documentation/ClassKit/CLSContext)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)