Week in Core, August 31 – September 7, 2016

Welcome back the latest issue of Week in Core, covering changes [38456-38570]. Here are the highlights:

Ticket numbers based on trac timeline for the period above. The following is a summary of commits, organized by component.

Code Changes

Accessibility

Administration

Bootstrap

Comments

Customize

  • Fix php warning due to WP_Customize_Manager::prepare_setting_validity_for_js() incorrectly assuming that WP_Error will only ever have arrays in its $error_data. [38513] #37890
  • Introduce paneVisible state and ensure pane is visible when a construct is expanded (or focused). Fixes #36678. [38492] #27403, #36678
  • Fix i18n by re-using the add_new_item post type label instead of using a post type name in a generic string. [38479] #34923, #37895
  • Use new $status_code parameter for wp_send_json_error() instead of calling status_header() separately. [38478] #35666, #37897
  • Improve handling of active state for dynamically-created controls/sections/panels. [38464] #37270

Database

  • Find the correct table names in DELETE queries with table aliases [38507] #37660

Docs

  • Update the $message parameter for _default_wp_die_handler() to notate that it can also accept a WP_Error object. [38518] #37770
  • Correct @since entry for the smilies filter added in [38504]. [38505] #35905
  • Move term_description() reference from filter docblock to get_the_archive_description() function docblock. [38495] #37259

Editor

  • fix jumpiness on pressing backspace and delete in the Text editor. Merge of [38426] to the 4.6 branch. [38487] #37690

Embeds

  • Clarify some assertion failure messages and correct a test URL for Twitter timelines. [38514] #32360
  • Update the oEmbed provider test suite. [38512] #32360

Formatting

HTTP

  • Handle an edgecase within the URI parsing library included in Requests, where if a double slash exists at the start of the path the URL is passed to cURL malformed. Merge of [38429] to the 4.6 branch. [38485] #37733
  • Accept non-string values in cookies, fixing a regression since 4.5. Merges [38430] to the 4.6 branch. [38461] #37768

HTTP API

  • Revert changes to wp_parse_url() while PHP 5.2 errors are investigated. [38456] #36356

General

  • revert [38386], functions.php was probably too tempting for some people to not load by itself. [38469] #36335
  • revert [38467], wp_is_IE() should not exist. [38468] #37699
  • use a new function, wp_is_IE(), instead of the $is_IE global in a number of places. [38467] #37699
  • use get_bloginfo( 'version' ) instead of global $wp_version in several locations – excluding those locations which reload version.php mid-flight. [38459] #37699

Help/About

  • Remove an outdated help sentence on “My Sites” screen. [38474] #37896

I18N

  • Add translator comments for XML-RPC strings with placeholders. [38510] #37792

Login and Registration

  • Change login label to Username or Email Address for clarity. [38477] #37871

Media

  • Sanitize upload filename. [38538] #

Menus

Multisite

  • Deprecate wp_get_network(). [38515] #37553
  • use get_current_site() instead of $GLOBALS['current_site'] (stop yelling!) in a few remaining spots. [38458] #37699
  • use get_current_blog_id() where applicable, in lieu of plucking the $blog_id global from outer space. [38457] #37699

Post Thumbnails

  • Prevent post thumbnail previews from spilling into other images. Merge of [38433] to the 4.6 branch. [38476] #37697

Press This

  • don’t check for already-hoisted global in press-this.php. [38466] #37699
  • in wp_ajax_press_this_save_post() and wp_ajax_press_this_add_category(), don’t check for a global instance. WP_Press_This is a Controller, but not really a Singleton. This also keeps it from being a pluggable class, which it is right now. [38465] #37699
  • in get_shortcut_link(), just check a class constant on WP_Press_This instead of instantiating the object and reading an instance prop. [38462] #37699

Query

  • ‘orderby=include’ should support comma-separated lists. [30052] assumed that ‘include’ would be an array. [38500] #37904
  • Use AND in a SQL query rather than &&. [38491] #37903
  • r38356, you were not long for this world. [38471] #37830
  • in wp_old_slug_redirect(), use get_query_var() instead of importing and touching the global $wp_query directly. [38463] #37699

Role/Capability

Script Loader

Shortcodes

Smilies

Taxonomy

  • Introduce some taxonomy capability tests in preparation for introducing more fine grained capabilities for terms. [38516] #35614
  • Introduce wp_insert_term_data and wp_update_term_data filters for altering term data before it is inserted/updated in the database. [38484] #22293
  • Correct the function description for wp_ajax_add_link_category(). [38490] #37770
  • Update various docs for parameters which are now WP_Term objects. See #14162 [38489] #37770, #14162

Template

  • After [38486], actually use the $description variable in get_the_archive_description(). [38493] #37259
  • In get_the_archive_description(), add support for author archives. [38486] #37259

Text Changes

  • Improve Error messages in XML-RPC [38509] #37792
  • Improve the timezone setting description in General Settings. Makes more clear users can set either a city or a UTC timezone offset. [38483] #34789

TinyMCE

  • fix toolbars alignment in RTL. Merge of [38349] to the 4.6 branch. [38488] #37760
  • change the default font for the vi locale to the same stack as he_IL. Merge of [38427] to the 4.6 branch. [38472] #37755

Toolbar

Upgrade/Install

  • After [37687], fix the number of params passed to the upgrade hooks. Merge of [38415] to the 4.6 branch. [38475] #37731
  • Sanitize file name in File_Upload_Upgrader. [38524] #

Upload

Users

  • After [33766], don’t reset the password when clicking “Show Password” and then “Cancel” on Add New User screen. [38494] #37902, #33419

Pass $profileuser parameter to user_profile_picture_description filter on “Edit User” screen. [38481] #37379

Widgets

  • Make the Delete/Remove links red. For consistency and accessibility, all the UI controls that perform destructive actions should be red. [38536] #35622, #37016

## Props

Thanks to @afercia, @Akeif, @akibjorklund, @andrewp, @atimmer, @azaozz, @batmoo, @boonebgorges, @celloexpressions, @Chaos, @curdin, @dd32, @deremohan, @dlh, @DrewAPicture, @Engine, @flixos90, @Frank, @fronaldaraujo, @GaryJ, @geminorum, @gitlost, @GrantDerepas, @henrywright, @ibachal, @ideag, @ionutst, @jeremyfelt, @joemcgill, @johnbillion, @johnjamesjacoby, @johnpgreen, @jorbin, @Klein, @lukecavanagh, @monikarao, @mte90, @netweb, @nmt90, @patilswapnilv, @pento, @peterwilsoncc, @PieWP, @Presskopp, @ramiy, @Rarst, @sayedwp, @scrappy@…, @SergeyBiryukov, @smerriman, @swissspidy, @TimothyBlynJacobs, @turtlepod, @westonruter, and @wonderboymusic for their contributions!