Automattic

Alex Mills

Nick Momrik

Ian Dunn

Michael Adams (mdawaffe)

Daryl L. L. Houston (dllh)

Each time a change is made to a post or page, those changes are emailed to the users and email addresses you specify.
Optionally, you can set what types of changes to email (post changes, page changes, attachment changes, or changes 
to any other ‘post type’ defined by any other plugin).
The changes are emailed as a unified diff. If the email client supports HTML emails, the diff will be colorized.

Email Post Changes

Emails you whenever a change to a post or page is made.

Pixy Puala

Sidebar Diff brings revision comparisons directly into the editor so you don’t have to leave your flow.
<ul>
<li>Always-visible panel in the editor sidebar</li>
<li>Live comparison of your current edits vs. last saved copy</li>
<li>Optionally compare against any revision from the dropdown</li>
<li>Per-block grouping with per-paragraph highlights (insertions and deletions)</li>
<li>Zero front‑end impact; editor-only assets</li>
<li>Improved diff highlighting with color-coded line indicators</li>
<li>Dark mode support for WordPress 6.8+ compatibility</li>
<li>Responsive design optimized for different screen sizes</li>
<li>Keyboard shortcuts (Ctrl+D/Cmd+D) to toggle diff panel quickly</li>
<li>Performance optimizations with lazy loading and debounced calculations</li>
</ul>
Why this isn’t a duplicate: Existing revision/workflow plugins (e.g., PublishPress Revisions) provide queues and separate compare screens. Sidebar Diff embeds an always-visible diff inspector inside the editor sidebar for continuous awareness.
<h3>Privacy</h3>
The plugin does not transmit data to third parties, set cookies, or track users. Editor-only scripts run for logged-in users with edit capabilities.

Sidebar Diff Revisions Viewer

Adds a persistent diff viewer to the Block Editor sidebar, showing live changes against the last saved revision with per-block highlights.

Email Post Changes vs Sidebar Diff Revisions Viewer