Week in Core, September 7 – 20, 2016

Welcome back the latest issue of Week in CoreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress., covering changes [38571-38636]. Here are the highlights:

  • 66 commits
  • 61 contributors
  • 171 tickets created
  • 15 tickets reopened
  • 106 tickets closed

Ticketticket Created for both bug reports and feature development on the bug tracker. numbers based on trac timeline for the period above. The following is a summary of commits, organized by component.

Code Changes



  • Docs: Use a third-person singular verb for wp_doing_ajax 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. added in [38334]. [38607] #25669
  • Bootstrap: Use dirname() when loading class-wp-hook.php from plugin.php. [38589] #37707


  • Database: Fall back to utf8 when utf8mb4 isn’t supported. [38580] #37982


  • Add wp-util as a dependency for customize-controls. [38628] #38107
  • Remove IE8 access to 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. to discontinue support. [38627] #38021
  • Let static_front_page section be contextually active based on whether there are any published pages. [38624] #34923, #38013
  • Ensure nav menu items lacking a label use the title from the original object. [38618] #38015
  • CBetter hover/focus state for section titles and available widgets. [38602] #29158
  • Implement previewing of form submissions which use the GET method. [38587] #20714
  • Prevent widgetWidget A WordPress Widget is a small block that performs a specific function. You can add these widgets in sidebars also known as widget-ready areas on your web page. WordPress widgets were originally created to provide a simple and easy-to-use way of giving design and structure control of the WordPress theme to the user. previewing logic from building invalidinvalid A resolution on the bug tracker (and generally common in software development, sometimes also notabug) that indicates the ticket is not a bug, is a support request, or is generally invalid. jQuery selectors when sidebars are registered without a class name in before_widget. [38577] #37993


  • Normalise index names in dbDelta(). [38591] #34874
  • Increase the size of wp_posts.post_password to 255 characters. [38590] #881


  • Docs: Use a third-person singular verb for smilies filter added in [38504]. [38608] #35905
  • Update autop() to match wpautop(). [38594] #4857, #4857
  • Docs: Fix an outdated comment. [38593] #4857
  • Add an extra line break before blockBlock Block is the abstract term used to describe units of markup that, composed together, form the content or layout of a webpage using the WordPress editor. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. elements in wpautop(). [38592] #4857
  • Don’t send an HTTPHTTP HTTP is an acronym for Hyper Text Transfer Protocol. HTTP is the underlying protocol used by the World Wide Web and this protocol defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands. status code in wp_send_json() by default. This avoids clobbering an HTTP status code that may have been set prior to calling this function. [38576] #35666


  • Multisitemultisite Used to describe a WordPress installation with a network of multiple blogs, grouped by sites. This installation type has shared users tables, and creates separate database tables for each blog (wp_posts becomes wp_0_posts). See also network, blog, site: Revert [38388]. [38636] #37699
  • Docs: Use a third-person singular verb for register_post_type_args filter added in [34242]. [38610] #37770

I18Ni18n Internationalization, or the act of writing and preparing code to be fully translatable into other languages. Also see localization. Often written with a lowercase i so it is not confused with a lowercase L or the numeral 1. Often an acquired skill.

  • Correct context for Next/Previous strings in get_the_posts_pagination(). [38611] #37952



  • 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): Standardize the remove/delete/cancel links in the Menus screen and Publish metaMeta Meta is a term that refers to the inside workings of a group. For us, this is the team that works on internal WordPress sites like WordCamp Central and Make WordPress. boxes. [38616] #37969, #37018, #37448, #37138, #27314
  • Use strict comparison for the condition added in [38612]. [38613] #37846
  • Remove ‘sub item’ label when removing the sub item’s parent. [38612] #37846
  • Docs: Fix phpdocPHPDoc (docblock, inline docs) and jsdoc typos introduced in [38584] and [38587], respectively. [38588] #33742, #20714
  • Prevent non-published posts/pages from being returned in search results for adding as nav menu items. [38584] #33742
  • Fix notices thrown by classes extending Walker_Nav_Menu. [38575] #35206
  • Improve documentation of new $item_spacing argument. [38574] #35206

Networks and Sites

  • Multisite: Show always domain and path when deleting a site. [38633] #37309
  • Multisite: Use get_networks() in get_main_network_id(). [38632] #37218
  • Multisite: Provide $join as a possible SQL clause to the sites_clauses filter. [38631] #37922
  • Multisite: Add annotations for extended WP_Site properties. [38630] #37932
  • Docs: Synchronize docblocks for WP_Site_Query::__construct() and get_sites() after the changes in [37735], [38008], [38103], and [38336]. [38596] #38039
  • Docs: Correct description for domain and path arguments in WP_Network_Query::__construct(). [38595] #32504

Options, Meta APIs

  • Options: Build out register_setting like register_meta. [38635] #37885


  • Ensure Pending Review Posts permalink posts link to the draft [38572] #37423


  • Style the primary action link in the non-js “Installing 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” page. [38617] #36430
  • Tests: Use add_filter() when it’s available. [38582] #17817
  • Docs: Fix minor formatting for inline docsinline docs (phpdoc, docblock, xref) in WP_Hook following its introduction in [38571]. [38573] #17817
  • HooksHooks In WordPress theme and development, hooks are functions that can be applied to an action or a Filter in WordPress. Actions are functions performed when a certain event occurs in WordPress. Filters allow you to modify certain functions. Arguments used to hook both filters and actions look the same.: Add the new class WP_Hook, and modify hook handling to make use of it. [38571] #17817

Posts, Post Types

REST APIREST API The REST API is an acronym for the RESTful Application Program Interface (API) that uses HTTP requests to GET, PUT, POST and DELETE data. It is how the front end of an application (think “phone app” or “website”) can communicate with the data store (think “database” or “file system”) https://developer.wordpress.org/rest-api/.


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.

  • Docs: Correct the description of {$taxonomy}_term_new_form_tag hook, making it more consistent with other *_form_tag hooks. [38629] #38104
  • Pass taxonomy name to actions in term-relationship CRUDCRUD Create, read, update and delete, the four basic functions of storing data. (More on Wikipedia.) functions. [38621] #38006
  • Query: Eliminate unnecessary wp_list_filter() call in get_queried_object(). [38586] #37962
  • Query: Avoid PHPPHP The web scripting language in which WordPress is primarily architected. WordPress requires PHP 5.6.20 or higher notice in get_queried_object() when query contains NOT EXISTS tax query. [38585] #37962


  • Docs: Correct two references to plugins in the $args parameter description for themes_api(). [38623] #37939
  • Docs: Use a third-person singular verb for {$type}_template_hierarchy filter added in [38385]. [38609] #14310
  • Docs: Use a third-person singular verb in the DocBlockdocblock (phpdoc, xref, inline docs) summary for get_theme_file_uri(), get_parent_theme_file_uri(), get_theme_file_path(), and get_parent_theme_file_path(), introduced in [38578]. [38606] #18302
  • Docs: Use a third-person singular verb for theme_file_uri, parent_theme_file_uri, theme_file_path, and parent_theme_file_path filters added in [38578]. [38605] #18302
  • Add the non-encoded form of the queried item slug to the template hierarchy when the slug contains non-ASCII characters. [38583] #37655
  • Taxonomy: Revert accidental changes introduced in [38578]. [38579] #18302
  • Improve child themeChild theme A Child Theme is a customized theme based upon a Parent Theme. It’s considered best practice to create a child theme if you want to modify the CSS of your theme. https://developer.wordpress.org/themes/advanced-topics/child-themes/. file inheritance by introducing functions for locating and fetching the URLURL A specific web address of a website or web page on the Internet, such as a website’s URL www.wordpress.org or path to files within child and parent themes. [38578] #18302


  • Add a ‘View Posts’ link to the toolbar when on the post listing screen. [38634] #34113


  • Docs: Correct a comment and @return entry in WP_Upgrader::create_lock(). [38622] #38089
  • Automatically log users in after installation. [38619] #34084


  • Avoid a PHP notice in ::pingback_ping() if page title was not found. [38620] #36727
  • Check the minimum number of arguments in ::wp_getUsersBlogs() and ::blogger_getUsersBlogs(). [38600] #29750

Thanks to @aaroncampbell, @adamsilverstein, @afercia, @akibjorklund, @DMing, @BjornW, @boonebgorges, @celloexpressions, @curdin, @danielpietrasik, @dd32, @DrewAPicture, @eliorivero, @enshrined, @ericlewis, @FlorianBrinkmann, @folletto, @georgestephanis, @gma992, @helen, @hideokamoto, @hugobaeta, @ian.edington, @iandunn, @jbrinley, @jeremyfelt, @joehoyle, @joemcgill, @johnbillion, @johnjamesjacoby, @jorbin, @karmatosed, @kitchin, @knutsp, @markshep, @MaximeCulea, @melchoyce, @monikarao, @nacin, @nazgul, @obenland, @ocean90, @paulwilde, @pento, @peterwilsoncc, @RedSand, @rmccue, @rnoakes3rd, @rommelxcastro, @ryankienstra, @ryanplas, @SergeyBiryukov, @skippy, @spacedmonkey, @swissspidy, @Takahashi_Fumiki, @websupporter, @welcher, @westonrute, @westonruter, and @wonderboymusic for their contributions!

#4-7, #week-in-core