The day has finally come, the Wiki module version 04.01.00 has been released!
You should be able to upgrade from the 04.00.01 version by installing this module through the module installer (as you should always do, backup your database and file system before installing/upgrading any modules on your DNN site)
Here are the release notes (be sure to read these over!):
MODULE: Wiki Core Module
VERSION: 04.01.00
Minimum DNN Version: 04.08.03
Fix:
WKI-6494 Fixed a problem where if you entered the string 'a_l_e_r_t' (sans _) into the Wiki text editor content would be removed after that string. This was related to the input filters within the Wiki,
WKI-5623 Fixed a problem with edits in the Wiki text entry. If you entered content that had < or > these tags were improperly encoded. This has been corrected by using different methods for the input filter.
WKI-7101 Fixed an error where the Wiki wouldn't allow edits for roles that were defined when the Wiki was set to use its own security, not the DNN security model.
WKI-6775 Module Actions on router.ascx have been localized, as well as corrected and put into the proper syntax for DNN. The incorrect syntax was causing problems with DNN 4.5.3 and greater
WKI-5890 Missing RESX Files in the Source version have been corrected.
WKI-5897 An & was showing up next to the Search text in the left hand navigation of the Wiki module.
WKI-6115 Corrected problems with the SQL script for instances using a non-default databaseOwner
WKI-5636 Localization files were missing for the Comments functionality in the Wiki module. The comment functionality was moved and overhauled in the solution for this release.
WKI-5991 In the History view for a topic the Name of the topic needed a space placed after "History for" topicname
WKI-6870 Restore topic wasn't replacing the new SQL functionality
WKI-6869 In the search item collection the information wasn't having the Title replace the name if there was a topic.title defined.
WKI-7127 Unicode values in the comments for an article weren't being stored properly due to the column types.
WKI-7128 The EncodeTitle method that built links within the Wiki was corrected to properly encode Unicode, handling links with arabic and other language characters.
WKI-7566 The Delete Comment link was hard coded and not localized, it has been localized in the 04.01.00 release
WKI-7379 The Text Editor has been resized to 400px for this release, in a future release it will be made "adjustable" through module settings.
NEW:
WKI-4833 Created the ability to define a Page Title, Description and Keywords for Wiki topics. This will increase the SEO effectiveness of Wiki pages.
WKI-5992 Created the ability to add a page in the Wiki module without having to create a link inside of an existing Wiki page.
WKI-7126 Thanks to Stefan Culman the Wiki module now supports IPortable, providing import and export functionality for the module.
WKI-7562 The Search Results and Topic history pages now pull information based on either the Wiki Name, or Title depending on what is provided.