Takayuki Miyauchi

Display Posts and Pages on the Dashboard in order of descending of modified.
<ul>
<li>Post and Page Title</li>
<li>Status</li>
<li>Last author</li>
<li>Modified Date</li>
</ul>
<a href="https://github.com/miya0001/last-modified-dashboard-widget" rel="nofollow ugc">This plugin maintained on GitHub.</a>
<h3>Credits</h3>
This plug-in is not guaranteed though the user of WordPress can freely use this plug-in free of charge regardless of the purpose. 
The author must acknowledge the thing that the operation guarantee and the support in this plug-in use are not done at all beforehand.

Recent Updates Dashboard Widget

Display Posts and Pages on the Dashboard in order of descending of modified.

webdeveric

This plugin provides a dashboard widget that lists recently edited content for quick access.
Options (per user settings):
<ul>
<li>Number of items to show</li>
<li>Excerpt length – number of words (0 = hide)</li>
<li>Show only your edits</li>
<li>What post types to show</li>
<li>What post statuses to show</li>
</ul>

Recently Edited Content Widget

This plugin provides a dashboard widget that lists recently edited content for quick access.

Recent Updates Dashboard Widget vs Recently Edited Content Widget