Dennis Bareis

WordPress revisions do not normally include custom fields or taxonomies. This plugin extends revisions to include taxonomies and custom fields from PODS etc, allowing previous states to be captured, compared & restored as expected.
Usage 
There is no user interface, once installed and activated it will start 
capturing custom field and taxonomy information. The rest is stock WordPress revision functionality, except that this plugin formats the extra data into an easy to read format for display in the comparison screens.
The look for the compare screens can be changed in “settings.ini” (including turn off or changing the CSS used).
Features
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Taxonomies are saved as metadata with a key such as “$TAXONOMY:light_conditions” for the “light_conditions” custom category. The values are a list of “ID=Name” pairs. These would generally sort to the top (or close to it).
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WordPress limits how the data is presented in the “Compare Revisions” screen, so the data is displayed as an alphabetically sorted list of fields and their values.
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You can filter out metadata keys with one or more regular expressions if you don’t care about their values. Filtered out metadata is not saved, displayed or restored.
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Some CSS is applied to the WordPress “Compare Revisions” screen which I believe makes it easier to understand, however you can disable this by renaming or deleting the CSS file (or adjusting “settings.ini”).
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The unicode characters also make the output easier to read and you can change their values or remove them via “settings.ini”. For example, you can tell the difference between a repeating field and a single field with many lines.
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Note that the “Restore This Revision” button restores what is on the right hand column and explains why it is greyed out for the last revision slot.
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</ul>
Try it out 
<a href="https://tastewp.org/plugins/extend-revisions-for-custom-fields-and-taxonomies/" rel="nofollow ugc">Try it for free at TasteWP</a>
Reporting Issues 
Please turn on both “debug” and “info” in settings, perform the failing 
operation, and include the php log (part or all, if later specify the problem’s time as per the log)… 
Please provide screenshots if possible.

Extend Revisions for Custom Fields and Taxonomies

Possibly the only plugin that supports taxononomy revisions?

WordPress revisions do not normally include custom fields or taxonomies. This plugin extends revisions to include taxonomies and custom fields from PO …

Saud Ashfaq

DUZZ SEO is a totally free SEO plugin that enables you to perform several important tasks that you can accomplish only by using other premium SEO plugin available on the internet. This plugin is highly optimized for speed by using native WordPress Functions and Hooks for optimum web-page rendering speed. You can add several meta tags that are highly recommended to boost on page SEO as well as for Facebook sharing, analytics and webmaster codes of different channels and much more. Also within coming soon options, you will be able to check run time on page SEO score of the page or post. You will be adding google map and schema to any post or page using only a short code. We are not going to stop here but this plugin is going to be all you need SEO Plugin at one place. Stay tuned!
For backwards compatibility, we do not support right now. Only the WordPress latest version is recommended to be used.
DUZZ Features:
<ol>
<li>Adds Meta Data / Meta Tags to boost on page SEO</li>
<li>Adds Facebook Meta tags that enables best results while sharing on Facebook</li>
<li>Adds Google Analytics and Webmaster Verification and Tracking Code</li>
<li>Adds Bing and Pinterest Analytics/Webmaster Verification and Tracking Code</li>
</ol>
Upcoming Features:
<ul>
<li>Adds Google Map anywhere in your website you want</li>
<li>Adds Schema anywhere in your website you want</li>
<li>Shows Results of On-Page SEO at run-time</li>
<li>XML Site map generator</li>
<li>robots.txt file generator</li>
<li>Ping tool to ping SE with any post or page</li>
</ul>

DUZZ

DUZZ adds meta data for SEO and Facebook shares as well as analytics and webmaster tools code to your site and much more.

Extend Revisions for Custom Fields and Taxonomies vs DUZZ