Just updated my plugin Contextual Related Posts to v1.3.1. This is a tiny release that fixes a bug where "No related posts" was displayed even if you chose the option to blank out the release.
I’ve uploaded the release to the WordPress repository and it should appear within your WordPress Plugins page, so you can upgrade from there directly.
For potential users, a short description:
Display a list of contextually related posts for the current post. You can select the number of posts to display and if you want to automatically display the related posts in your content / feed.
Now, you can choose to exclude posts from certain categories as well as exclude pages from being displayed in the list.