freetools

LMP allows you to add in your sidebar a widget that will display the last modified articles in descending order of modification date.
Settings to customize:
<ul>
<li>Allow you to set title widget</li>
<li>Display Number of items</li>
<li>Display modified date</li>
<li>Display thumbnails</li>
</ul>
If no thumbnail was found for the article, LMP will add a generic image.

Last Modified Posts

Add a widget to display the list of the last modified/updated posts.

linknacional

The <a href="https://www.linknacional.com/wordpress/plugins/" rel="nofollow ugc">Post Updated Date for Divi</a> is a simple plugin, that displays the date of the latest post update or modification, instead of the publication date.
Dependencies
No dependencies.
User instructions
<ol>
<li>
Search the WordPress sidebar for ‘Posts’;
</li>
<li>
In the post page, look for the date column;
</li>
<li>
The displayed date, should be the date of the last update to the post, instead publication date.
</li>
</ol>

Post Updated Date for Divi

Shows the post updated or modified date for divi blog posts. Will show only those posts are modified or updated.

Last Modified Posts vs Post Updated Date for Divi