| Property | Type | Description | Required or Optional | Available Version |
|---|---|---|---|---|
| content | ConnectApi.ContentCapabilityInput | Content to attach to the comment. | Optional | 32.0 |
| feedEntityShare | ConnectApi.FeedEntityShareCapabilityInput | Optional | 42.0 | |
| record | ConnectApi.RecordCapabilityInput | Existing knowledge article to attach to the comment. | Optional | 42.0 |