This page is all about version 0.50 of the Aneuch wiki engine. This is the successor to the 0.4x series.
Download Aneuch 0.50, then follow the installation instructions (or see the Upgrading guide)
Templates - This version of Aneuch introduces templates. If you have to create a large number of pages with similar formatting/structure, you can save that formatting and structure as a template, and select that template when creating a new page. This will save significant time when it comes to building out a new site.
Development information can be found on Version_0.50_DevTrack