- Patch #537862 by Crell, Amitaibu, salvis: simplify and make more flexible the node access by converting hook_access() to hook_node_access().

#544418 by merlinofchaos, sun, drewish, quicksketch, et al: Integrate CTools AJAX framework with Drupal to extend (and replace) existing ahah framework. Everything about AJAX/AHAH is more betterer now.

- Patch #226876 by csevb10, dave reid, et al: converted more queries to the new database abstraction layer.

#371231 by JohnAlbin and EclipseGC: Rename clear-block CSS class to clearfix, which is the lingo that designers use for it.

#8 by sun and most of #drupal: Users can now cancel their accounts. Fixing the 8th issue, almost 8 years later, on January 8th, after working 8 days full-time on it. GREAT WORK :D

- Patch #319356 by recidive: clean up hook_nodeapi_ fucntion signatures and documentation because of previous node API clean-ups.

- Patch #288039 by sun, ff1, agentrickard, fgm, ultimateboy: improved usability of the aliased URL admin page.

#313213 by maartenvg, Gábor Hojtsy: Add a 'title' attribute for permissions to allow for localization of permission names

- Patch #310212 by justinrandell, catch, et all: killed  in _user hook, as well as two small kittens.

- Patch #302763 by Dave Reid, Rob Loach: replace time() by ['REQUEST_TIME'] as per Rasmus' suggestion.  Removed drupal_referrer() for consistency.

- Patch #252013 by Eaton, pwolanin, Susurrus et al: drupal_render() now printes #markup, not #value.

  et al.  Can you say 'registry'?  Drupal now maintains an internal registry of
  all functions or classes in the system, allowing it to lazy-load code files as
  needed (reducing the amount of code that must be parsed on each request). The
  list of included files is cached per menu callback for subsequent loading by
  the menu router. This way, a given page request will have all the code it needs
  but little else, minimizing time spent parsing unneeded code.

- Patch #245115 by kkaefer, John Morahan, JohnAlbin et al: after a long discussion we've decided to make the concatenation operator consistent with the other operators.