Knowledge Base is one of the popular premium WordPress wiki plugins, and it is very easy to use as well. Knowledge Base is a simple and flexible plugin that lets you create a highly functional and attractive wiki style page. Although it is designed for documentation style pages, it works great as a wiki plugin too. Some of the important features of the plugin include super-fast search, multiple widgets, integrated breadcrumb, latest posts, drag and drop knowledge base posts, responsive design, fast support and much more.
Version 2.1.0 – Jan 30, 2016
Added option for meta info display under page content
Added and improved styling options
Fixed minor styling bugs