To update the class syllabus, follow these steps:

1. Navigate to the Academics module and select "Syllabus" from the menu.
2. Click on "Class Syllabus" to access the syllabus page.
3. Select the desired class and subject from the available options.
4. Click on the "Search" button to retrieve the syllabus information for the selected class and subject.
5. On the right side of the panel, you will find a pencil tool button.
6. Click on the pencil tool button to enter the edit mode for the class syllabus.
7. Update the syllabus content, make necessary changes or additions based on the requirements.
8. Once you have finished updating the syllabus, click on the "Save" or "Submit" button to save the changes.
9. The class syllabus will be updated with the modified content.

By following these steps, you can easily update the class syllabus by accessing the Syllabus section, selecting the desired class and subject, and using the edit mode to make changes to the syllabus content.