To delete an existing Project Update from a Project, follow these steps:

1. Navigate to the Project Updates page for the Project
2. Locate the specific Project Update you want to dleete.
3. Click on the Actions button in the upper right corner of the Update
4. Select the "Delete" option from the menu
5. Confirm your decision to permanently delete the update.

Please note that deleted Project Updates cannot be recovered, so make sure you want to remove it before confirming the deletion.