Updating Fronds edit
To update your version of the fronds plugin, overwrite your existing Fronds.dll (which should be in the same directory as AutoWikiBrowser.exe) with the latest version (right click, save as).
Due to the nature of Fronds, updates to the main plugin will be few and far between. Therefore, one can safely assume that the update is an important one; it may contain major bugfixes or other improvements. This would suggest that it's advisable to update whenever prompted to do so, especially as the project is now only in its beta phase.