Frank Bueltge

Bernhard Kau

Torsten Landsiedel

ChriCo

Caspar Hübinger

Sergej Müller

This simple WordPress plugin displays a message in any single post that has been published x years ago from the current time or earlier. The default time to count back is 1 year. Minimal post age as well as message text, HTML, and CSS are <a href="//wordpress.org/plugins/aged-content-message/faq/" rel="nofollow ugc">fully customizable via settings</a>.
<h4>Languages</h4>
<ul>
<li>English (en_US) (default)</li>
<li>German (de_DE)</li>
<li>Formal German (de_DE_formal)</li>
</ul>

Aged Content Message

This is great little helper! :)

The settings are easy and it does nothing without you configuring it.

If you need more customizations, then you can use filters to further prevent or show the message.

You can style it yourself if you know CSS, but it ships with a generic CSS styling which works in most cases.

Recommended little plugin with a responsive author and a Github repo for issues or PRs. 

Open source can be fun with such great little helper plugins. This is the reason why this directory exists.

Hopefully the "[Discontinued]" text on the Github repo is a mistake ... 

Great little helper - very customizable

Displays a message at the top of single posts published x years ago or earlier, informing about content that may be outdated.

Jonathan Bardo

Note: This plugin only works with WordPress 4.2 or higher
This plugin will enable the site administrator to easily create an admin message present on all pages. The admin has the option to let the user dismiss the message for the duration of his session.

Admin User Message

This does just what I want. Thanks for making it. :)
It's definitely better than https://wordpress.org/plugins/admin-screen-messages
You might want to also tag it as:
https://wordpress.org/plugins/tags/admin-message



Perfect

Add message to users of your site. Choose wheter they can dismiss it or not.

Aged Content Message vs Admin User Message