Changing div.more-link from float: right; back to text-align: right; as it was a while ago. Floats do not advance the document vertically, which meant the more link hovered over whatever was below it.

- Adding a drupal_goto to the block admin.

#10648: Fix watchdog-related tablesort coloring bug in IE, add support for <tr> attributes to theme_table() and reduce specificy of watchdog coloring CSS rules.

- Removed the CSS capitalization: it breaks on browsers like Konqueror.

- Theme system changes.  Please consult http://drupal.org/node/view/9576 for details.

- The upload (filehandler) module has landed!

The Input formats - filter patch has landed. I still need to make update instructions for modules and update the hook docs.

Here's an overview of the changes:
1) Multiple Input formats: they are complete filter configurations (what filters to use, in what order and with which settings). Input formats are admin-definable, and usage of them is role-dependant. For example, you can set it up so that regular users can only use limited HTML, while admins can free HTML without any tag limitations.
The input format can be chosen per content item (nodes, comments, blocks, ...) when you add/edit them. If only a single format is available, there is no choice, and nothing changes with before.

The default install (and the upgrade) contains a basic set of formats which should satisfy the average user's needs.

2) Filters have toggles
Because now you might want to enable a filter only on some input formats, an explicit toggle is provided by the filter system. Modules do not need to worry about it and filters that still have their own on/off switch should get rid of it.

3) Multiple filters per module
This was necessary to accomodate the next change, and it's also a logical extension of the filter system.

4) Embedded PHP is now a filter
Thanks to the multiple input formats, I was able to move the 'embedded PHP' feature from block.module, page.module and book.module into a simple filter which executes PHP code. This filter is part of filter.module, and by default there is an input format 'PHP', restricted to the administrator only, which contains this filter.
This change means that block.module now passes custom block contents through the filter system.
As well as from reducing code duplication and avoiding two type selectors for page/book nodes, you can now combine PHP code with other filters.

5) User-supplied PHP code now requires <?php ?> tags.
This is required for teasers to work with PHP code. Because PHP evaluation is now just another step in the filter process, we can't do this. Also, because teasers are generated before filtering, this would result in errors when the teaser generation would cut off a piece of PHP code.

Also, regular PHP syntax explicitly includes the <?php ?> tags for PHP files, so it makes sense to use the same convention for embedded PHP in Drupal.

6) Filter caching was added.
Benchmarking shows that even for a simple setup (basic html filtering + legacy URL rewriting), filtercache can offer speedups. Unlike the old filtercache, this uses the normal cache table.

7) Filtertips were moved from help into a hook_filter_tips(). This was required to accomodate the fact that there are multiple filters per module, and that filter settings are format dependant. Shoehorning filter tips into _help was ugly and silly. The display of the filter tips is done through the input format selector, so filter_tips_short() no longer exists.

8) A more intelligent linebreak convertor was added, which doesn't stop working if you use block-level tags and which adds <p> tags.

- Patch by Al: improved the admin/help pages (first step).

- Patch #9330: ucfirst() gives problem when used with multibyte charset.
  Replaced the use of ucfirst() with a CSS-based solution.

- Restoring background coloring for the watchdog logs (was broken)
- Making watchdog backgrounds lighter, makes it easier on the eyes and improves readability.
- Adjusted the spacing between items on the frontpage a bit to be clearer.
- Fixed the vertical stretching of table rows with form controls in them.

- I'm removing these files from core: they belong in contrib/docs/marketing
  now (if they are not already there).

- Patch #9049 by JonBob: fixed a number of tab issues.

- Patch #8617 by TDobes: changes all gifs to pngs for better consistency (and
  to get of proprietary formats).

- Added forum-sticky.png.  Made by Steven.

First tab improvements by Adrian:

  + Changed menu.inc to generate two separate lists instead of nested lists:
    that seems to be the only alternative to get rid of absolute positioning.

  + Changed the tabs code to be more sexy and put the code in misc/drupal.css
    so all themes are automagically updated.

Tabs patch!

CHANGES
-------

 + Introduced tabs. First, we extended the menu system to support tabs. Next, a tab was added for every link that was (1) an administrative action other than the implicit 'view' (2) relevant to that particular page only. This is illustrated by the fact that all tabs are verbs and that clicking a page's tab leads you to a subpage of that page.

 + Flattened the administration menu. The tabs helped simplify the navigation menu as I could separate 'actions' from 'navigation'. In addition, I removed the 'administer > configuration'-menu, renamed 'blocks' to 'sidebars' which I hope is a bit more descriptive, and made a couple more changes. Earlier, we already renamed 'taxonomy' to 'categorization' and we move 'statistics' under 'logs'.

 + Grouped settings. All settings have been grouped under 'administer > settings'.

TODO
----

 + Update core themes: only Xtemplate default supports tabs and even those look ugly.  Need help.

 + Update contributed modules.  The menu() hook changed drastically.  Updating your code adhere the new menu() function should be 90% of the work.  Moreover, ensure that your modue's admin links are still valid and that URLs to node get updated to the new scheme ('node/view/x' -> 'node/x').

- Improved form handling.

  + Introduced two new functions:
      1. form_set_error($name, $message): files an error against the form
         element with the specified  $name.
      2. form_has_errors(): returns true if errors has been filed against
         form elements.

  + Updated the form handling:
       1. The form_ functions will add 'class="error"' when a form field
          has been found to be erroneous.
       2. The error message is passed to theme_form_element() when the
          particular form field has been found to be erroneous.

  + I updated the user and profile module to take advantage of these new
    functions.

  + IMPORTANT: the _user() hook changed.  The 'validate' case should no
    longer retun an error message when something goes wrong but should
    set it with form_set_error().

- Patch #6863 by Moshe: add 'class="active"' to the table elements of
  the active column.

- Made the recent news items page, the source pages and the categorization
  pages use pagers.  Removed the 'Items per page' setting and made Drupal
  remember news items much longer.

- Patch #7581 by bylund: made the archive module's calendar accessible.

- Various aggregator module improvements.  Modified patch by drumm.

  configurable!  Menu items can be disabled, repositioned, added and
  so on.

  Upgrading to requires you to run update.php.

  This functionality depricates some of the 'navigation modules' in the
  contributions repository.  Furthermore, modules can now 'suggest'
  menu items and site adminstrators can choose to enable them.  Modules
  in the contributions repository should try to take advantage of this.

- Patch #6829 by kika: cleanup of drupal.css.  The patch did not apply 100% cleanly so hopefully everything is well.

- Tracker and forum module improvements!

  Note: the CSS of the tracker page has changed.  Some CSS files still have
  to be updated.

- Rewrote the profile module:

   + Added a 'created' field to the users table and renamed the 'timestamp'
     fied to 'changed' (cfr. node table).  Update.php will try to determine
     a 'created' timestamp for existing users.

   + The profile module no longer uses serialized data but has its own set
     of tables.  Known existing profile data is migrated by these new tables.
       TODO: migrate the birthday field.

   + The profile fields can be grouped, and within each group, profile fields
     can be sorted using weights.

   + The profile pages can be themed.

   + The profiles can be browsed based on certain properties/settings.

   + Change the _user hook: (i) 'private_view' and 'public_view' are merged
     into 'view' as there are no private fields and (ii) 'edit_form' has
     been renamed to 'edit'.

   + Avatar handling has been refactored and is now part of the user module.
     The users table has a dedicted 'picture' field.

   + Simplified the way themes should use display/visualize pictures or
     avatars.

   + Made it possible for administrators to replace or delete avatars.

   + ...

  I hope this make for a good base to build on collectively.

* Code cleaning: simpler structures, removed some old leftovers, ...
* Clean URLs everywhere (the old mechanism was broken anyway). Had to get rid of 'inline voting' (i.e. voting with the sideblock and ending up on the same page), but that was a bit confusing anyway.
* Simplified submission form with form_group and streamlined choice mechanism.
* Improved bar rendering in pollresults for themes with avatars, like xtemplate.

Improved <label> patch: got rid of ID's by implicit association, and made radio/check labels non-bold again.

- Patch #5569 by mathias: fixed jumpy menu behavior with konqueror.

- Small CSS improvements to help fix bug 5145.

- Usability improvement: added a book navigation block.

- Bugfix: fixed incorrect placement of book module navigation.
- Made some of the menu styles reusable by other lists.

Round 3 of aggregator improvements:

 - Added support for new tags:
   + Optinal feed image: <image> tag.
   + Dublin core dates: <dc:date> <dcterms:created>, <dcterms:issued>,
     <dcterms:modified>.
 - Usability improvements:
   + On the administration page, made the feed/bundle titles link
     to the feeds/bundles' pages.  On the feed/bundle's page, made
     the 'Last updated' field link to the administration page.
   + Moved the 'syndication' menu one level down.
 - Updated some content sensitive help.
 - Further improved themeability.
 - Fixed some invalid HTML.

 + Added some a new theme fucntions to the aggregator to make it possible to
   theme the aggregator page.
 + Removed the <table> and much hardcoded CSS as well as theme("box")-es.
 + Added the aggregator's theme functions to Doxygen's themeable group.
 + Added breadcrumb trails to the aggregator pages.
 + Updated the core themes to take advantages of the improved themeability.

Screenshot:

 http://buytaert.net/temporary/aggregator-makeover.jpg

- Fixed bug #4922: made misc/drupal.css validate by removing some Mozilla
  specific code.