- Patch #727650 by Damien Tournoud: made OpenID more pluggable so we can extend it in contrib, and added support for Google's OpenID discovery protocol.

#606526 by axyjo and scor: Remove trailing whitespace and add newlines at end of files. Sorry, folks! But it is after code freeze. :)

#552478 by pwolanin, samj, dropcube, and sun: Improve link/header API and support on node/comment pages rel=canonical and rel=shortlink standards.

#560780 by quicksketch, ksenzee, Arancaytar, yched, and arianek: Added Image Field to image.module. Hellooooo, native image handling in core! :D

- Patch #11218 by David_Rothstein, sun, quicksketch, duncf, awood456, dropcube, mgifford | pwolanin, dww, RobRoy, Crell, webchick, beginner, ray007, bjaspan, chx, Gábor Hojtsy, Steven, Dries, lutegrass, sym, guardian, matt2000, geerlingguy, SeanBannister, matt westgate, com2, praseodym: allow default text formats per role, and integrate text format permissions.

- Patch ##525540 by jvandyk, sun, jhodgdon, fago | webchick, TheRec, Dave Reid, brianV, sun.core, cweagans, Dries: gave trigger.module and includes/actions.inc an API overhaul.  Simplified definitions of actions and triggers and removed dependency on the combination of hooks and operations. Triggers now directly map to module hooks.

- Patch #331171 by pwolanin, mfb, drewish: allow modules to alter the MIME extension mapping rather than setting a huge variable.

- Patch #559658 by sun, dropcube: store filter settings per format, general API clean-up and documentation improvements.

- Patch #537434 by chx, bangpound, moshe weitzman, David Strauss: move the blog API module to contrib.

#497118 by chx, catch, pwolanin, JoshuaRogers, and Jacob Singh: Remove the function registry. While the hope was that this would result in improved performance for low-end hosts, it comes at the expense of critical development experience problems and less benefit than something like APC. Class registry remains intact to facilitate autoloading.

Of all the patches to accidentally commit without a message. :( Rolling back registry rip. Let's try that again.

- Patch #331611 by sun, joshmiller, TheRec, Rob Loach, Damien Tournoud: add a poormanscron-like feature to core.

#485974 by pwolanin, Damien Tournoud, mr.baileys: Improved security by limiting the number of allowed login attempts.

#526120 by catch: Remove the related terms feature from Taxonomy module. This can now be accomplished with Field API.

- Patch #211747 by chx, alex_b, dww: allow specifying version information as part of module dependencies.

- Patch #524728 by David_Rothstein, JoshuaRogers, JacobSingh et al: refactor install.php to allow Drupal to be installed from the command line.

- Patch #374441 by tic200, Damien Tournoud, scor: refactor Drupal HTML corrector using PHP5's XML/Dom parser.

- Patch #227232 by dopry, c960657, jmstacey, pwolanin, aaron, drewish: added initial support for PHP file wrappers.