Plugin that allows you to collect posts in a series.
As of April 2026, Series is a WordPress series plugin with 2.0K+ active installations and a 4.2/5 rating from 5 reviews. It has been downloaded 46K+ times in total. Requires WordPress 4.8+ and PHP 5.3+. Available on WordPress.org since 2009. Last updated 7 years ago — may have compatibility concerns. Downloads are up 21% this week. Top alternative: Issues and Series for Newspapers….
Series is a plugin created to allow users to easily link posts together by using a WordPress taxonomy (like tags or categories) called “series”. It can be particularly useful if you write several posts spanning the same topic and want them tied together in some way that tags or categories doesn’t cover.
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If you’re a theme author, plugin author, or just a code hobbyist, you can follow the development of this plugin on it’s GitHub repository.
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Installed the plugin, I can see the settings page, but the Series meta box on the post editing page is not showing.
I’ve been using Series for ages and it still works great.
Now I use PHP 7.1 and WordPress 5.4.1.
Thanks to Justin Tadlock for this plugin.
the widget to show related listings that only shows on relevant posts is great
Does what it needs to do and still works fine, even though not updated for a long time. Somewhere in the support forum of one of his plugins, Justin said he would only update a plugin when necessary (read: when it doesn’t work after a WP core upgrade or a vulnerability has been discovered). Although that is fine, since there is already too much change for the sake of change, it might be a good idea to do a WP-compatibility bump now and than. If it weren’t for Justin’s reputation, I would never consider using a plugin that hasn’t received updates for over two years.
This an A+ job.
I do not know Justin Tadlock personally but he is probably the best maker of plugins in the world. This is another hole-in-one from the Tiger Woods of plugins:
| WordPress | 4.8+ requiredTested up to 5.0.25 |
| PHP | 5.3+ required |
Please see the changelog.md file included with the plugin. Or, you can view the online change log.
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.