neojp

WordPress 4.9.8 has introduced a new ‘Try Gutenberg’ message on the Dashboard to encourage the installation and testing of the WordPress’ Editor’s new functionality, you can <a href="https://wordpress.org/gutenberg/" rel="ugc">learn more about Gutenberg here</a>.
While this is a great call to action on WordPress end, some users might prefer to not have this message floating around their Dashboards, hence the creation of this simple little plugin.
<blockquote>
WordPress 4.9.8 will contain the “Try Gutenberg” callout, encouraging site owners to install the Gutenberg plugin, to test how their existing content and plugins works with the block editor. It also presents the option of installing the Classic Editor plugin, should they feel that they need more time to prepare for switching over to the block editor. <a href="http://bit.ly/2nbVRv7" rel="nofollow ugc">More information</a>
</blockquote>

Remove 'Try Gutenberg' callout

Starting WordPress 4.9.8 a new 'Try Gutenberg' callout will be displayed, use this to disable such message. http://bit.ly/2nbVRv7

dglambert

Adding a callout box (like a sidebar within a post) is a cumbersome 
process if you try to do it by hand. You could code a stylesheet to 
handle this, but this won’t work for people who use feed readers to 
read your articles.
Hence the need for this plugin. Define the styles you want to use 
in the settings page, and then create a new callout box like this:
[callout title=”A demo callout.”]Callout content here.[/callout]
You can see it live at http://componentoriented.com/wordpress/insert-callout
<h3>History</h3>
Version 1.0 
 – First release 
Version 1.0.1 
 – Fix name in readme.txt 
Version 1.0.2 
 – Fix “do not have sufficient permissions” error on admin page. 
Version 1.0.3 
 – Plugin processing reworked to use regex. 
 – Allow multiple callouts per post. 
 – Add syntax hint on edit page. 
 – Default a style to settings page. 
Version 1.0.4 
 – Fixed: Line breaks within a callout caused it to not be processed.

Insert Callout

Add a callout box (like a sidebar within a post) to a post.

Remove 'Try Gutenberg' callout vs Insert Callout