- Patch #8344 by Kjartan: drupal_http_request() did not always handle EOLs
  correctly.

- Patch #7725 by Marius: fixed glitch in e-mail address validation code.  A subset of e-mail addresses was rejected as valid.

Standard text/html HTTP Content-Type was not cached, causing encoding issues on some server configurations.

Truncate UTF-8 patch. Introduced a new function truncate_utf8() for chopping off strings at unsure locations, without risking incomplete UTF-8 data.

- Patch #6517 by kika: drupal_http_request() fails to open feed because on PHP 4.1.2.  Also updated file.inc.

- Removed broken throttle.

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

- Fixed '\n' => "\n".

- Added a short snippet to drupal_xml_parser_create() which invokes iconv() to convert unsupported encodings.

- Patch 5592 by Goba: introduced a new function, drupal_map_assoc().

  + only adds an optional parameter to url() and l(), so individual links
    can be set to be absolute
  + modifies drupal_goto() to accept the parameters of url() without the
    $absolute parameter, so cleaner invocations can be used
  + rework of some code in node_feed, making it much better to look at
    (the current code uses foreach with an immediate brake to get the first
    key of the associative array, geeeeez)
  + added xml:base to the rss tag generated by node_feed()
  + set all user mail URLs to be absolute
  + fix a small fragmented URL in user.module

- Patch #5708 by Goba: moved the URL aliasing functions to a common place, so
  they will be part of the same documentation group, as well as created a new
  'formatting functions' group and added a lot of docs for them.  Also fixed
  some small errors reported by the doxygen parser.

- Subset of patch 5613 by Goba: fixed some translation issues.

- Fixed bug 5532: search broken if any subsearch returns without results.
  Patch by Goba.

- Patch #5448 by pz: removed code duplication from theme.inc.

- Patch 4332 by Goba: eliminate compose tips module.

- Patch #5393 by Goba: changes the search hook return value, and requires an array
  containing two elements, the first being the requested title, and the second being
  the result list. Advantages:
    * Cleaner search code in common.inc
    * Po extraction is possible and works fine
    * No hardcoded exceptions for node and comment modules, since any module can
      return results in order of relevance (or another order)

- Improvement #5388: removed unnecessary SQL queries when no URL aliases are defined.

- Patch #5351 by Kyber: fixed bug in field_get().

- Added missing permission check.  Patch by Ax.

- Added a $granularity field to format_interval().

- Fixed bug 5247: active link marking invalidates HTML.  Patch by Goba.

- Fixed incomplete input checking.

- Correction: I accidentically removed some $base_urls.

 - Adds drupal_set_header() and drupal_get_headers().
 - Cache now stores custom headers.
 - Replace theme_head() with drupal_get_html_head(), added drupal_set_html_head().
 - Added RSS autodiscover links to node, blog and taxonomy pages.

- Made l() add 'class="active"' to the active/current URL.

- Fixed issue with drupal_get_path_alias(): should return false for non-aliased URLs.

- Many excellent news aggregator improvements by Kjartan:
    + Added drupal_http_request().
    + Replaced rssfeeds with OPML feed subscription list.
    + Added support for pubDate.
    + Added support for conditional gets using ETag and Last-Modified.

/**
 * Wrapper around xml_parser_create() which extracts the encoding from the XML
 * data first and sets the output encoding to UTF-8. This function should be
 * used instead of xml_parser_create(), because PHP's XML parser doesn't check
 * the input encoding itself.
 *
 * This is also where unsupported encodings should be converted.
 * Callers should take this into account: $data might have been changed after
 * the call.
 *
 * @param $data The XML data which will be parsed later.
 */

Committed filter separation patch: all filter-related things are now in filter.module (which is a required module).
To do this cleanly, I reorganised some bits of system.module: there is now a generic handler available for simple variable-get/set based configuration pages. Look at filter_admin() or system_view() for example usage.

(based on the patch by Goba)

- Partial patch #4927: mass URL aliasing by Goba.