Last Weeks in WordPress Core

Hi! This is a late Last Week in WordPress Core for the two weeks of March 17-30. Lots going on as we approach RC.

Beta 3 is out, and you can check out the release post here. There are a few big things that have landed that are included. In particular, please test video and audio playlists by uploading more than one file of either, and check to see if you see any oddities in quote formatting, as much of wptexturize() was revamped.

Admin:

  • Theme Installer: Restore the feature filter, improve responsiveness, update router, make ‘Upload Theme’ button more consistent with the admin, and avoid theme-count causing filters to jump. [27636] #27055
  • Theme Installer: Bring keyboard accessibility to the theme install screen and theme action buttons. [27804] #27521
  • Dashboard: Restore the update message in the dashboard that was removed in 3.8. [27711] #26664
  • Distraction Free Writing: Allow the fullscreen editor’s content area to be responsive. [27821] #27569
  • Accessibility: Better focus styles for form elements in the admin. [27741] #27173

Widget Customizer:

  • Restore highlighting of widgets in preview. [27584] [27702] #27358
  • Use WP_Error for errors, and add handling for when user is missing cap to change widgets or is logged out. [27652] #27419

Themes:

  • Introduce HTML5 caption support: When supported by a theme via add_theme_support( 'html5', 'caption' ), use figure and figcaption instead of div and p. With HTML5 captions, no longer include extra 10 pixels within inline styles. img_caption_shortcode_width is skipped when the theme supports HTML5 captions. [27668] #26642 #9066
  • On attachment pages for audio and video, add support for players. [27622] #27243
  • Default Themes: Improve accessibility for keyboard and voice-over interactions. [27594] #27147 [27606] [27607] #24839
  • Default Themes: Update editor styles for A/V and Galleries. [27638] [27637] [27641] #27462
  • Default Themes: Enable thumbnail support for attachment:audio and attachment:video. Check for theme OR post type support when determining whether to enable Featured Image UI in the admin. [27657] #27460

Media

  • There is no more video-playlist shortcode. To use video, it is now [playlist type='video' ...]. Core playlist styles removed; the style attribute is still supported, defaulting to light. [27785] [27812] #27552
  • Only enqueue the media modal image editor within the admin. [27625] #21811
  • Support a caption attribute for audio and video shortcodes. [27640] #27320
  • Create a new file, media-audiovideo.js, to house all of the audio and video JS code in core, and improve UX. [27608] [27631] #27437
  • With Plupload, switch to urlstream upload method when the flash runtime is used in non IE browsers. This ensures cookies are sent but limits the maximum file size that flash can handle. By default only IE9 and older use flash, so it would only affect things if a plugin disables the html5 runtime. [27662]
  • Provide a metabox to edit audio metadata (initially from ID3) on the “Edit Media” page. [27862] [27862] [27864] [27869] #27574.

TinyMCE:

Internals

  • Masonry: Update Masonry v2/v3 shim from upstream. [27779] [27780] [27781] #27510
  • Texturize: Massive performance improvements (~600% faster); better handling of braces, nbsp, double, and weird spaces; 136 new unit tests. [27839] [27844] #22692
  • Cookie Session Checks:: Only show test cookie warnings on submit as caching/proxies may intercept the test cookie for GET requests. Introduce a new string for when headers are sent and link them to a new Cookies page on the codex. [27859] #27373
  • Object Cache:: Introduce pre_update_option filter, available in update_option(). Allows filtering of any option before its value is (maybe) serialized and updated. [27815] #27504
  • wpautop: Remove select and input from wpautop()‘s HTML blocks list. [27761] #22230
  • Heartbeat: Hooks should always receive unslashed data. This affects the privileged hooks; the unprivileged hooks already did so. [27576] #27260
  • Customizer: Use esc_url_raw to escape customizer URL settings to prevent double encoding. [27574] #26569
  • Template: Encode spaces in get_template_directory_uri() and get_stylesheet_directory_uri(). [27710] #21969
  • Filesystem: Fix getchmod() for direct and ssh2 transports, for directories. [27566] #26598
  • Text/i18n Cleanup: Many text changes and updates. Check out all of them in the full log on Trac.
  • i18n: In is_serialized(), use substr() rather than array access, for compatibility with multibyte overloading. [27565] #18007
  • Postmeta: Return false from metadata_exists() if the get_$type_metadata filter returns a false value. [27562] #22746
  • Pagination: Introduce before_page_number and after_page_number arguments for paginate_links(). [27600] #24709
  • E-mail: Always decode special characters for email subjects. [27801] #25346
  • WP Class: Add post_parent to the private query vars list. Fixes detached media queries. [27782] #27532.
  • Post: Use wp_parse_id_list() when parsing exclude_tree in get_pages(). Ensure a URL string, array with string as value, and array with array as value for exclude_tree can be used to specify multiple IDs. [27767] #9153

WP_Query

Multisite:

  • Introduce a ms_site_not_found filter to replace NOBLOGREDIRECT. Bail if there’s no site. [27663] #21143; #27003
  • In multisite load, cache the main site lookup query. [27664] #27003
  • Ensure the $path is trailing-slashed in domain_exists(). [27717] #20589

For the complete list of commits to trunk, check out the log on Trac. Interested in helping close out the release? Write or test a patch for 3.9.

Thanks to @adamsilverstein, @adelval, @afercia, @aliso, @aubreypwd, @avryl, @azaozz, @barry, @bcworkz, @celloexpressions, @cgaffga, @Chouby, @chriseverson, @chrisguitarguy, @cramdesign, @danielbachhuber, @dannydehaan, @DavidAnderson, @DrewAPicture, @drozdz, @dustyf, @eatingrules, @ehg, @eightface, @ejdanderson, @eliorivero, @empireoflight, @ericlewis, @ericmann, @ethitter, @fahmiadib, @frank-klein, @gcorne, @grahamarmfield, @GregLone, @hakre, @helen, @jackreichert, @janw.oostendorp, @jartes, @jbkkd, @jdgrimes, @jeremyfelt, @joedolson, @johnbillion, @jorbin, @kawauso, @kovshenin, @kpdesign, @kwight, @lancewillett, @lkwdwrd, @markjaquith, @mattheu, @mattonomics, @matveb, @mauryaratan, @mcsf, @melchoyce, @MikeHansenMe, @miqrogroove, @mordauk, @nacin, @Nao, @Nessworthy, @nofearinc, @obenland, @ocean90, @paulwilde, @pavelevap, @pbearne, @philiparthurmoore, @prettyboymp, @raamdev, @rachelbaker, @ramonchiara, @roothorick, @ryelle, @sabreuse, @sandyr, @SergeyBiryukov, @shahpranaf, @siobhyb, @spmlucas, @stevenkword, @tbrams, @tlovett1, @TobiasBg, @tomauger, @Toru, @vanillalounge, @westonruter, @wonderboymusic, @xknown, and @yoavf for their efforts!