#289504 by mikeryan and moshe weitzman: Add index on comment, uid columns to speed up user_delete().

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

#371458 by Damien Tournoud, Gerhard Killesreiter, and smk-ka: Add a missing index on menu_router tab_root.

#473396 by Everett Zufelt, annmcmeekin, jmburnz, sun, et al: Define system-wise classes for providing hidden elements for accessibility.

#382870 by geerlingguy, jmburnz, EclipseGc, JohnAlbin, sun, et al: Update and Polish default node.tpl.php output.

#533584 by chx, dww, and Nick Lewis: Allow version-level dependency support to work with beta, rc, etc.

#193383 by TheRec, JirkaRybka, and Bart Jansens: Centralize calls to set_time_limit() and prevent warnings/errors.

#531476 by aaron and mfb: Add favicon mimetype as a theme setting to avoid expensive calls to file system.

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

#76422 by coreyp_1: Greet admin users with a prompt to create content types rather than an access denied page when no content types exist on node/add.

#433992 by David_Rothstein and Frando: Change #theme_wrapper to #theme_wrappers to allow multiple theme functions to execute on renderable objects.