The upgrade from WebGUI 7.6.x to WebGUI 7.7.x brings major changes to the WebGUI platform.  Please check your sites for the following "gotchas":

    * 29 templates have been replaced with new ones. These are the templates
      for the Article, File, Folder, Image, Navigation, Layout, Poll, Search
      and Syndicated Content assets. 13 templates have been deleted (Article,
      Navigation and Layout templates). These were deleted because of deprecated
      code, redundancy and because we are want to reduce the number of
      templates. This will make the whole set of templates more comprehensible.

      Changes for all these templates:

      - extra divs, classes and IDs have been added;
      - consistent markup for recurring code, like titles, descriptions, attachments and pagination;
      - inline styles and deprecated code removed.

      Article

      - All Article templates:
          - Removed pagination. This will be re-added later, when the pagination macro bug has been fixed (bug #10619)

      - Default Article:
          - Added attachment loop (RFE #4152)
          - Removed code for image, since there now is a dedicated Article with Image template

      - Center Image:
          - Deleted: align="center" is deprecated

      - Left align image:
          - Changed name to Article with Image
          - Removed tables and added styles for img positioning

      - Linked Image with Caption
          - Removed tables and added styles for img positioning

      - Item:
          - Added attachment loop

      - Item w/ popup links:
          - Deleted: pop-up links are bad practice and this doesn't need to be a default

      - Article with files:
          - Deleted: attachment loop now added to Default Article

      - article.css added 

      File

      - Default File:
          - The linktext is title instead of the filename (RFE #10173)

      - Flash File:
          - Template now uses swfobject code
          - Absolute width and height attributes are set in the html to replace the percentage value and inline style

      Folder

      - File Folder:
          - The linktext is title instead of the filename (like in the Default File template)
          - Tables have not been removed, since they are semantically correct here

      Image

      - Image:
          - Only added extra div with ID and class

      - Annotate Image:
          - No changes

      Changes for Navigation

      - crumbTrail:
          - No specific changes

      - verticalMenu:
          - Deleted: best practice is using "Bulleted List" for vertical navs

      - horizontalMenu:
          - Based on unordered list
          - Added styles

      - DropMenu:
          - Javascript cleaned up
          - Noscript alternative added

      - Tabs:
          - Based on unordered list
          - Added styles

      - Tree Navigation:
          - Javascript cleaned up

      - Hierarchical top nav:
          - Javascript cleaned up

      - Synopsis:
          - HTML based on definition list

      - Bulleted list:
          - Now always generates validating html (closing ul and li tags)

      - Indent Nav:
          - No specific changes

      - navigation.css added

      Layout

      - All table layouts:
          - Deleted: using tables for positioning is bad practice

      - All non table layouts:
          - Removed unnecessary divs ("layoutColumnPadding" and "content")
          - Styles for positioning added

      - One Over Two:
          - Newly added
          - Replaces News, but has one less content position

      - News, Three Over One, Left column:
          - Deleted: we want to reduce the number of templates and only kept the basic/most used page layouts

      - layout.css added

      Poll

      - Default Poll:
          - General cleanup, added extra classes and IDs

      - poll.css added

      Search

      - Default Search:
          - Results in a definitions list
          - Form post back to the current page instead of to the asset in wobject focus,
            this prevents possible "breaking" of the style

      Syndicated Content

      - Default Syndicated Content:
          - General cleanup, added extra tags, classes and IDs

      - Syndicated Articles:
          - General cleanup, added extra tags, classes and IDs
          - Removed inline style

   * A basic behavior of the Inbox has been changed.  If a message is
     sent to a Group of WebGUI users, and any member of the group reads
     the message, then that message is marked as read by all members.  This
     most often happens for commit reminders for version tags that require
     approval.  The old behavior often resulted in several users trying
     to approve version tags that had already been approved.

   * The RSSCapable class and RSSFromParent asset have been removed.
     Any custom assets using those are recommended to switch to the new
     RssFeed AssetAspect.  If not used by custom assets, the tables
     used by them will be removed from the database.

     This will change the URLs for your RSS Feeds from "myAsset.rss" to
     "myAsset?func=viewRss".  You will need to update all Syndicated Content
     assets and other content aggregators that had the old URLs.  Alternately,
     you can use Redirect assets to forward the old URL to the new one.

   * Keywords are now comma separated rather than space separated.  Quotes are
     no longer treated specially and will become part of keywords.  Keywords
     cannot contain commas.  Keyword searching is still case insensitive, but
     keyword will preserve the case of what is entered.