WordPress Core Weekly

Howdy! Sorry, I dropped the ball last week so this week’s Weekly Roundup is a double issue — it covers April 4, 2015 [32003] to April 18, 2015 [32140].

This week marks the releaseRelease A release is the distribution of the final version of an application. A software release may be either public or private and generally constitutes the initial or new generation of a new or upgraded application. A release is preceded by the distribution of alpha and then beta versions of the software. of RC1, which is the first release that many pluginPlugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party authors and betaBeta A pre-release of software that is given out to a large group of users to trial under real conditions. Beta versions have gone through alpha testing in-house and are generally fairly close in look, feel and function to the final product; however, design changes often occur as part of the process. testers will test heavily. If you don’t already, now is a good time to check out the Alpha/Beta forums for any issues that crop up during this testing cycle.

We’re only days away from the release of 4.2; let’s finish strong! 🏃👏 Here’s the rundown of recent changes:


  • Update to 4.1.9+. Changes:
    • Fixed bugbug A bug is an error or unexpected result. Performance improvements, code optimization, and are considered enhancements, not defects. After feature freeze, only bugs are dealt with, with regressions (adverse changes from the previous version) being the highest priority. where extra empty paragraphs would get deleted in WebKit/Blink due to recent Quriks fix.
    • Fixed bug where the editor wouldn’t work properly on IE 12 due to some required browser sniffing.
    • Fixed bug where formatting shortcut keys where interfering with Mac OS X screenshot keys. [32058] #31895
  • Disable the wp-autoresize plugin in iOSiOS The operating system used on iPhones and iPads.. All iframes there are already expanded to the height of the content document. [32095] #31937
  • Update the “Keyboard Shortcuts” modal. [32060] #29558
  • Fix our shortcuts on Mac, use Ctrl + Opt + letter. [32059] #29558
  • Use window.twemoji directly in the wpemoji plugin. Gives a chance to the browser to lazy load twemoji.js when reloading the page. [32142] #31901
  • Remove the empty paragraph that sometimes is left over after adding an image caption. [32141] #32003


  • Remove selected views when inserting content but not when loading all content, and remove the ref. to the selected view node on resetting the views. [32140] #31998
  • Resize sandbox iframes on load. [32056] #31480
  • Empty the content in the timeout, so it doesn’t render iframes twice. [32022] #31669

Build/Test Tools

  • During PHPUnit tests, don’t autodetect permalink structure during WP installation. [32139] #31994
  • Move the built media JSJS JavaScript, a web scripting language typically executed in the browser. Often used for advanced user interfaces and behaviors. files up a directory to their previous location and naming convention. [32125] #31912 (see [31373])
  • Don’t reference underscore.js source map. [32065] #31477


  • WordPress 4.2-RC1 [32137] [32138]
  • Use HTTPSHTTPS HTTPS is an acronym for Hyper Text Transfer Protocol Secure. HTTPS is the secure version of HTTP, the protocol over which data is sent between your browser and the website that you are connected to. The 'S' at the end of HTTPS stands for 'Secure'. It means all communications between your browser and the website are encrypted. This is especially helpful for protecting sensitive data like banking information. URLs for codex.wordpress.orgWordPress.org The community site where WordPress code is created and shared by the users. This is where you can download the source code for WordPress core, plugins and themes as well as the central location for community conversations and organization. https://wordpress.org/. [32116] #27115
  • Explain all placeholders in translator comment, not just the first one. [32111] #31675
  • Ensure post title input is not shortened for non-public post types. [32071] #30968
  • Improve handling of incomplete From and Content-Type headers in wp_mail(). [32070] #30266
  • wpLink: always show the URLURL A specific web address of a website or web page on the Internet, such as a website’s URL www.wordpress.org field at the top. [32017] #28206
  • Force default avatarAvatar An avatar is an image or illustration that specifically refers to a character that represents an online user. It’s usually a square box that appears next to the user’s name. for HiDPI avatars on Discussion Settings. [32129] #31972

Translationtranslation The process (or result) of changing text, words, and display formatting to support another language. Also see localization, internationalization. and Strings

  • Merge strings that describe the same command. [32078] #31776
  • Update placeholder for FTPFTP FTP is an acronym for File Transfer Protocol which is a way of moving computer files from one computer to another via the Internet. You can use software, known as a FTP client, to upload files to a server for a WordPress website. https://codex.wordpress.org/FTP_Clients. credentials. [32077] #31922
  • After [31941], use the decoupled strings from wp-admin/network/themes.php in wp-admin/network/site-themes.php as well. [32029] #28502
  • Correct grammar when referring to “a user” vs “an user” in several places. [32025] #31894


  • Fix flickering of the adminadmin (and super admin) menu on over-scrolling. [32089] #30900
  • Dashboard: Ensure images other than avatars (such as emoji replacements) in recent comments are not incorrectly positioned. [32076] #31919
  • Admin menu: fix colors for focus state and in IE8. [32075] #31345
  • Dismissible notices: more precise positioning across browsers. [32068] #31233
  • Reset padding for buttons in theme details modal. [32128] #31963
  • Revert [32099] per discussion in #core. [32100] #30900
  • Remove z-index from #adminmenuback. [32099] #30900
  • Don’t print the custom-background class in body_class() when a default color is in use. [32081] #28687
  • Toolbar: Search item consistency for focus state and IE8. [32074] #31322
  • Pointers: Makemake A collection of P2 blogs at make.wordpress.org, which are the home to a number of contributor groups, including core development (make/core, formerly "wpdevel"), the UI working group (make/ui), translators (make/polyglots), the theme reviewers (make/themes), resources for plugin authors (make/plugins), and the accessibility working group (make/accessibility). the dismiss icon a consistent size. [32069] #31915
  • Update more instances of default admin blues and grays. [32051] #31234

Emoji and Smilies

  • Tweak which smiley matches which emoji. [32105] [32107] #31709
  • Update our few remaining smilies to better align with Twemoji, and add frownie.png until Twemoji provides a build containing it. [32104] #31709
  • The emoji JS files should be run through the script_loader_src filterFilter Filters are one of the two types of Hooks https://codex.wordpress.org/Plugin_API/Hooks. They provide a way for functions to modify data of other functions. They are the counterpart to Actions. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output., as they would be if they were registered scripts. [32097] #31938
  • Tidy up the wp_encode_emoji() regex, and clarify the function comment on Unicode 8 support. [32096]
  • Remove an errant / in Twemoji URLs. [32024] #31893
  • Remove executable bit from smilies. [32109] #31709


  • Twenty Fourteen: update editor styles to better account for adaptive images in small screens. [32094] #31934
  • Twenty Fifteen: update editor styles to better account for adaptive images in small screens. [32090] #31934
  • Theme Compat: Make string translatable and add translator comments. Added in [31941]. [32084] #28502, #31921
  • Move initialization of $customizeSidebar to api.ThemesSection.initialize() to prevent cases where the result can be undefined. [32119] #31793
  • Translator comment should just reference placeholder numbers, not the actual placeholders. [32112] #31675
  • Tell developers how to correctly silence register_sidebar() notices. [32110] #31675

CustomizerCustomizer Tool built into WordPress core that hooks into most modern themes. You can use it to preview and modify many of your site’s appearance settings.

  • Refresh nonces when a session expires and the user logs in again. [32054] #31294
  • Widgets: Improve sync logic for select[multiple] inputs. [32012] #31885
  • Fix spinners after [31996]. [32008] #31884
  • Escape theme preview URLs. [32134] #31896
  • Headers: Improve handling of the initial headerHeader The header of your site is typically the first thing people will experience. The masthead or header art located across the top of your page is part of the look and feel of your website. It can influence a visitor’s opinion about your content and you/ your organization’s brand. It may also look different on different screen sizes. model.[32091] #31786, #31742

Theme Switcher

  • Fix some esoteric breakage in iOS Safari. [32103] #31794
  • Don’t deactivate section on empty search results. [32083] #31889
  • Remove “Add New” reference from customize-controls.js. [32004] #31837
  • Use text input for the search field to prevent double tap issues for Preview and Customize buttons on iOS. [32127] #31794
  • Don’t re-render a theme control if it has already been rendered.
  • Lazy load theme screenshots. [32088] #31793
  • Fix tabbing order if section is open. [32087] #31289
  • Fix preview URL for subfolder installs. [32086] #31896

Shiny Updates

  • Disable shiny updates from modal based on parent window [32082] #31739
  • Fix logic for details based shiny updates. [32080] #31739
  • Disable modal initiated shiny updates on wp-admin/update-core.php. [32067] #31739
  • Use dashes instead of dots as separator for jQuery events in shiny updates . is used for namespaces, so better to use dashes. [32063] #31819
  • Trigger events upon the completion of a shiny update. [32061] #31819
  • Remove Shiny Bulk Updates. Bulk updates don’t need to be ajaxified so let’s revert. [32053] #31770, #29820
  • Conditionally add AYS to leaving shiny updates. [32052] #31769
  • Enable users to initiate a shiny update from plugin detail modal. [32062] #31739


  • Don’t allow whitespace-only image captions from the Media modal. [32079] #21848
  • Fix focus and selected state for the selected attachments set. [32072] #31898
  • Rename get_media_embedded_in_content_allowed filter tomedia_embedded_in_content_allowed_types. [32113] #26675
  • Bring back spinners, now without bouncing select elements. [32101] #22839, #30725
  • Fix the media modal Insert into post button on narrow screens by limiting the width of .media-toolbar-primary and .media-toolbar-secondary only inside .attachments-browser (the top toolbar). [32121] #31908
  • Insert from URL: Make sure the link text is actually used. [32055] #29476
  • Make sure the spinner in the media modal is visible on narrow screens (without affecting the media grid). [32120] #30725

Build Tools

  • Don’t override minified libraries included in coreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress.. [32066] #31477


  • Remove unnecessary inline @see tags from a variety of parameter and return descriptions in wp-includes/wp-db.php. [32050] #31888
  • Remove unnecessary inline @see tags from the wpdb::process_field_charsets()DocBlockdocblock (phpdoc, xref, inline docs). [32049] #31888
  • Add a missing return description for has_header_image(). [32048] #31888
  • Fix a variety of inline documentation syntactical issues in wp-includes/taxonomy.php. [32047] #31888
  • Add a missing @access tagtag A directory in Subversion. WordPress uses tags to store a single snapshot of a version (3.6, 3.6.1, etc.), the common convention of tags in version control systems. (Not to be confused with post tags.) to the DocBlock for the WP_Meta_Query->$clauses property. Also adds a missing return description for WP_Meta_Query::get_clauses(). [32044] #31888
  • Add a variety of missing descriptions and fix syntax for wp_scripts(),_wp_scripts_maybe_doing_it_wrong(), and wp_script_add_data(). [32040] #31888
  • Remove an unnecessary inline @see tag and document the $wpdb global in two WP_Comment_Query methods. [32038] #31888
  • Add missing parameter and return descriptions to WP_Customize_Widgets->filter_customize_dynamic_setting_args(). [32036] #31888
  • Add parameter and return descriptions for WP_Customize_Widgets->get_setting_type(). [32035] #31888
  • Add missing @access tags to two DocBlocks in WP_Customize_Setting. [32034] #31888
  • Document the $theme property in WP_Customize_Themes_Section. Also adds a missing@access tag to the DocBlock for WP_Customize_Themes_Section->render(). [32033] #31888
  • Cleanup DocBlock syntax, add a missing parameter description for WP_Customize_Manager->set_post_value(). [32031] #31888
  • Add inline doc syntax fixes for WP_Customize_Manager->doing_ajax(). Also adds a return description. [32030] #31888
  • Add documentation for the $type and $theme properties in WP_Customize_Theme_Control. Also add some missing @access tags to various DocBlocks. [32028] #31888
  • Fix description alignment for the category_css_class filter docs. [32026] #31888
  • Add documentation for the $type, $mime_type, and $button_labels properties in WP_Customize_Media_Control. [32023] #31888
  • Clarify the DocBlock summary and parameter description forwp_edit_attachments_query_vars(). [32019] #31888
  • Add proper descriptions for the @global and @param tags in the wp_media_attach_action() DocBlock. [32018] #31888
  • Clarify the DocBlock description for wp_print_request_filesystem_credentials_modal(). [32016] #31888
  • Clarify 4.2.0 changelog entry, add global description to the DocBlock for WP_Users_List_Table->single_row(). [32015] #31888
  • Add missing @since versions from a variety of methods in WP_Press_This. [32014] #31888
  • Add missing DocBlocks for the _limit_array(), _limit_string(), _limit_url(),_limit_img(), _limit_embed(), and _process_meta_entry() utility methods in WP_Press_This. [32013] #31888
  • Add a return description to the DocBlock for WP_Posts_List_Table->is_base_request(). [32009] #31888
  • Add an @see mention for Plugin_Upgrader, plus spacing to the wp_ajax_update_plugin()delcaration. [32006] #31888
  • Add a more descriptive function summary for options_discussion_add_js(). [32005] #31888
  • Fix Docblock syntax for the taxonomy_parent_dropdown_args filter. [32003] #31888
  • Add a missing return description for wp_styles(). [32041] #31888
  • wp_install_maybe_enable_pretty_permalinks() should have a consistent @return value. [32027] #6481, #31888


  • All strings are available for translation. [32132] [32135] [32136] #31929
  • Change the subhead strings on credits.php and freedoms.php to match about.php.
  • Link the Emoji Codex article in the emoji blurb.
  • Add a second sentence to the JavaScriptJavaScript JavaScript or JS is an object-oriented computer programming language commonly used to create interactive effects within web browsers. WordPress makes extensive use of JS for a better user experience. While PHP is executed on the server, JS executes within a user’s browser. https://www.javascript.com/. AccessibilityAccessibility Accessibility (commonly shortened to a11y) refers to the design of products, devices, services, or environments for people with disabilities. The concept of accessible design ensures both “direct access” (i.e. unassisted) and “indirect access” meaning compatibility with a person’s assistive technology (for example, computer screen readers). (https://en.wikipedia.org/wiki/Accessibility) blurb.
  • Switch positions for the JavaScript Accessibility and Complex Query Ordering sections for balance. [32131] #31929
  • Update about page for 4.2. [32118] [32123] [32130] #31929


  • Move wp-plugin-update-success event to after lock is released [32133] #31978, #31819
  • Use named function instead of anonymous function, making it testable and replaceable. [32126] #31964
  • When dbDelta() is checking whether an index is defined in a CREATE TABLE statement, don’t worry if MySQLMySQL MySQL is a relational database management system. A database is a structured collection of data where content, configuration and other options are stored. https://www.mysql.com/. has a subpart defined on an index, but the CREATE TABLE doesn’t. [32108] #31869

Script Loader

Press This

  • Do not show the bookmarklet upgrade notice when accessing directly press-this.php. [32122] #31968
  • Add mb_strlen() compatibility function. Works the same way as the existing mb_substr() compatibility function. [32114] #31951
  • Check the bookmarklet version and add the update notice from PHPPHP The web scripting language in which WordPress is primarily architected. WordPress requires PHP 5.6.20. [32106] #31942
  • Add ARIA attributes to the alerts container. [32102] #31942
  • Fix focusing the Standard Editor link after saving draft, if the user has not focused another element. [32098] #31923
  • Change the link text to Standard Editor. [32093] #31923
  • When saving a draft change the text of the Save Draft button to “Saving…” [32092] #31923
  • Update documentation for press_this_save_redirect filter after [31992]. [32143] #31996

TaxonomyTaxonomy A taxonomy is a way to group things together. In WordPress, some common taxonomies are category, link, tag, or post format. https://codex.wordpress.org/Taxonomies#Default_Taxonomies.

  • wp_update_term() should check if get_term() returned null. [32117] #31954
  • Avoid an unexpected object error when syncing global terms. Pass the expected single value, rather than object, when recursively calling global_terms(). [32064] #31914, #31149


Thanks to @adamsilverstein, @afercia, @awbauer, @azaozz, @boonebgorges, @DavidAnderson, @dimadin, @dlh, @DrewAPicture, @ericlewis, @hauvong, @helen, @hugobaeta, @iseulde, @jamescollins, @jeremyfelt, @joemcgill, @joen, @johnbillion, @jorbin, @kraftbj, @lancewillett, @markjaquith, @mattheu, @Michael-Arestad, @mindrun, @morganestes, @nacin, @nitkr, @obenland, @ocean90, @pavelevap, @pento, @peterwilsoncc, @samuelsidler, @SergeyBiryukov, @siobhan, @sirbrillig, @slobodanmanic, @swissspidy, @tmatsuur, @Tmeiste, @tyxla, @valendesigns, @westonruter, and @wonderboymusic for their contributions!

#4-2, #week-in-core