# Upgrade

To upgrade the datatables.net source code:

Visit https://datatables.net/download/

Step 1: Choose Bootstrap4
Step 2: 
  Packages: Just DataTables
  Extensions: Buttons, Column visibility, HTML5 export, Print view, Responsive, RowReorder
Step 3: Download do not minify or concatenate
Step 4: Replace existing javascript and css with downloaded

After replacing the existing JS/CSS:

- Consider the buttons.colVis.js and add back the custom sorted functionality
- Consider the stylesheets/effective_datatables/overrides.bootstrap4.scss