Issue #2091511 by Cameron Tod, mcdruid, mpdonadio, David_Rothstein, lokapujya, stefan.r, Berdir, alexpott, damiankloip, cosmicdreams, das-peter, heddn, xjm, catch, tstoeckler, anavarre, naveenvalecha, tim.plunkett, dawehner: Make cache_form expiration configurable, to mitigate runaway cache_form tables

Issue #1617918 by pfrenssen, stefan.r, Ayesh, Fabianx, rfay, tea.time: $form['#token'] = FALSE in custom form always causes validation error for anonymous users

Issue #2760609 by Fabianx, stefan.r, chx: Allow the use of callbacks instead of global functions in parts of the Form API

This reverts commit 6303a156.

Revert "Issue #2652814 by Fabianx, stefan.r, david_garcia, Ayesh, David_Rothstein: Allow the use of callbacks for element value callbacks and batch API redirect callbacks"

This reverts commit ee2f0346.

Issue #2652814 by Fabianx, stefan.r, david_garcia, Ayesh, David_Rothstein: Allow the use of callbacks for element value callbacks and batch API redirect callbacks

Issue #2502263 by hgoto, David_Rothstein, klausi, ckng, rhclayto: Drupal 7.36 regression: hidden field textarea #default_value is ignored

Issue #1458824 by idebr, JvE, therealssj, mayaz17, cwoky, Henrik Opel, lokapujya, kevinquillen, presleyd, nod_, jbeuckm, botris, mistermoper, gcardinal: Ajax doesn't work with Tableselect with checkboxes

Issue #2563751 by borisson_, rocketeerbkw, cilefen, pietmarcus, NikitaJain, imanol.eguskiza, pjonckiere: Password field errors on user create/edit/login when password is (literally) 0

Issue #2599326 by Blanca.Esqueda, David_Rothstein: Fix autocomplete functionality on servers that are not configured to automatically recognize index.php

Issue #2547691 by snehi, er.pushpinderrana, visabhishek, ipun.amin, edxxu, jhodgdon, cilefen, ttkaminski: Fix documentation typo regarding #theme_wrappers

Issue #2428399 by joshi.rohit100, SkidNCrashwell, Sagar Ramgade, er.pushpinderrana, Dom.: Default empty option label text different in documentation than in reality

Issue #2380053 by klausi, pwolanin, tsphethean, sun, David_Rothstein: Posting an array as value of a form element is allowed even when a string is expected (and bypasses #maxlength constraints) - first step: text fields

Issue #2058761 by kirby14, thedavidmeister: PHP notice when #attributes is not set with #theme_wrappers 'container'.

Issue #2283675 by er.pushpinderrana, amitgoyal, mparker17, joachim, mmarquez: Document how optgroups are generated in form_select_options()

Issue #1204784 by bdgreen, Kevin Morse, valthebald, kiamlaluno, droplet: Fix code comment in drupal_retrieve_form

Issue #799356 by vijaycs85, m1n0, jaffaralia, effulgentsia: Fixed _form_set_class() is too aggressive in assigning the 'error' class.

Issue #1888454 by kiamlaluno: Remove irrelevant information from form_process_vertical_tabs() documentation

Issue #1785436 by Boobaa: Fixed Submission of #required elements without #title and empty value does not display any error.

Issue #1414510 by andypost, Spleshka, perelman.yuval, tim.plunkett: Fixed Remove drupal_reset_static() for drupal_html_id() when form validation fails.

Revert "Issue #1742438 by larowlan, Christian Biggins, kim.pepper, dcam, Everett Zufelt, mgifford: Fixed Vertical tabs header and container rendered even when no vertical tabs."

Concerns raised in http://drupal.org/node/1742438#comment-6609888 that this breaks backwards compatibility.

This reverts commit d462cafd.

Issue #1742438 by larowlan, Christian Biggins, kim.pepper, dcam, Everett Zufelt, mgifford: Fixed Vertical tabs header and container rendered even when no vertical tabs.

Issue #699604 by cam8001, nmudgal: Use file name for links to form API reference instead of full URL