- Patch #464862 by JohnAlbin, sun, dereine | dvessel, Jacine, Zarabadoo: added drupal_css_class() to clean class names and rename form_clean_id().

- Patch #576916 by BarisW | Bojhan: default menu 'Parent item' should be Navigation, not Primary links.

- Patch #556438 by rfay, effulgentsia, sun | quicksketch, Rob Loach, Dries, sun.core, Damien Tournoud: Fixed AJAX/AHAH 'callback' support only works for 'submit' and 'button' elements - Should work for all triggering elements.

- Patch #554088 by mr.baileys, sun | eaton: Changed Move user_mail_tokens() and emails to token system.

- Patch#583020 by c960657 | yched, Dries: fixed warning about missing argument 2 for field_delete_instance() in node_configure_fields().

- Patch #578520 by sun, c960657 | mfb, Dries, catch, mattyoung: Changed Make  in url() only accept an array.

- Patch #590014 by sun, mr.baileys | Dries: fixed undefined language when language is specified in .

- Patch #553944 by David_Rothstein, ksenzee | JacobSingh, sun, jhodgdon, pwolanin: allow modules to specify per-page custom themes in hook_menu().

- Patch #591758 by catch: system_region_list() should use list_themes() instead of a direct db_query().

- Patch #563526 by jhodgdon | anschinsan: fixed broken see also link in user-profile.tpl.php doc and re-organized some of the documentation.

- Patch #584370 by JoshuaRogers, JacobSingh | mattyoung: fixed bug with CSS file inclusion in the CSS optimization code.

- Patch #578520 by sun | c960657, mfb, Dries, catch, mattyoung: make  in url() only accept an array. Another nice API clean-up!

- Patch #508570 by quicksketch, sun | pwolanin, bec: restore URL consistency for node types and menus.

- Patch #215080 by andypost, drifter, Dave Reid | robertDouglass, catch, jaydub: drop unnecessary index.

- Patch #443422 by yched, bjaspan | chx, merlinofchaos, Scott Reynolds, plach, profix898, mattyoung: added support for pluggable 'per field' storage engine. Comes with documentation and tests.

The Field Attach API uses the Field Storage API to perform all "database access". Each Field Storage API hook function defines a primitive database operation such as read, write, or delete. The default field storage module, field_sql_storage.module, uses the local SQL database to implement these operations, but alternative field storage backends can choose to represent the data in SQL differently or use a completely different storage mechanism such as a cloud-based database.