Previous and next links within blog layout

I have tried just about everything, including the Middleman 3 syntax for previous and next articles, which has worked in the past. In middleman 4, I cannot seem to figure out how to link to previous and next articles.

What has worked in the past:

<% prev_article = current_article.article_previous %>
    <% if prev_article %>
      <a href="<%= prev_article.url %>" rel="prev" title="Previous article: <%= prev_article.title %>"> <%= prev_article.title %> </a>
<% end %>

Any idea how to do this properly?

This code does in fact work. The problem was that all of my dates were the same. Facepalm.