Week in Core, May 3 – May 10 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 [37355-37416]. Here are the highlights:

• 62 commits
• 22 contributors
• 74 tickets created
• 6 tickets reopened
• 59 tickets closed
• WordPress 4.5.2 released

Ticketticket Created for both bug reports and feature development on the bug tracker. numbers based on trac timeline for the period above.

Code Changes

• Version Bumps [37384-37401]

Build/Test Tools

• Don’t create unused users in Tests_Ajax_DeleteComment. [37404] #36616
• Revive grunt-rtlcss, which does not appear to enjoy syntax errors. [37363] #36753, #29792
• Correct ‘meta_query‘ syntax in test related to WP_User_Query ‘who’ param #36724. [37359] #36724, #36724, #32019, #23849, #27026
• Introduce reset_phpmailer_instance() function. [37358] #36658

Customize

• Ensure that wp_setup_nav_menu_item 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. applies consistently on nav_menu_item setting values. [37405] #35203

Docs

• Add a missing hook doc for the parse_comment_query hook, added in [31793]. [37355] #24826, #36740
• Fix typo in a comment in check_and_publish_future_post(). [37403] #32246
• Remove backticks from the DocBlockdocblock (phpdoc, xref, inline docs) summary for WP::$request, added in [37356]. [37366] #32246, #36674

External Libraries

• Update plupload from upstream [37376-37383]
• Update MediaElement.js from upstream. [37374-37375]
• Disable Flash backend for Plupload [37368] [37373]
• Missed SWF file changes from [37368] [37369]
• Replace split() with explode() in the deprecated Atom and MagpieRSS files. [37402] #20673

General

• Add tests for is_serialized_string(). [37357] #35952

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.

• Add changes missed in [37415]. [37416] #34114
• Remove the requirement to call load_plugin_textdomain() / load_theme_textdomain(). [37415] #34114
• Reverse the order of loading 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 and theme translations. [37414] #34213

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

• Use the adminadmin (and super admin)-multisite Dashicon for sites [37365] #36754
• Revert [37362], which incorrectly changed Dashicons CSSCSS Cascading Style Sheets. [37364] #36754
• Use the admin-multisite Dashicon in the admin menu and bar [37362] #36754

Options, 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. APIs

• After [33738], consistently pass option name as the second parameter to the 'default_option_' . $option filter in add_option() and update_option(). [37367] #36761

Rewrite Rules

• Add self-describing variables to rewrite matcher. [37356] #36674

Ui

• Drop Open Sans in the admin in favor of system fonts. [37361] #36753

Upgrade/Install

• Remove debug cruft. [37413] #36618
• After [37409] move the hook docs for upgrader_process_complete to WP_Upgrader::run(). [37412] #36618
• Update wp-admin/includes/class-wp-upgrader.php to require_once the new files added in [37406] and [37409]. [37411] #36618
• Update file headers for new files added in [37409]. [37410] #36618
• Copy WP_Upgrader subclasses into one file per class. [37409] #36618
• Update wp-admin/includes/class-wp-upgrader-skins.php to require_once the new files added in [37406]. [37408] #36618
• Update file headers and class DocBlocks for new files added in [37406]. [37407] #36618
• Copy WP_Upgrader_Skin and its subclasses into one file per class. [37406] #36618

Users

• The ‘who‘ parameter should not interfere with ‘meta_key‘ + ‘meta_value‘ in WP_User_Query. [37360] #36724

Props

Thanks to @achbed, @adrianosilvaferreira, @boonebgorges, @borgesbruno, @celloexpressions, @dlh, @DrewAPicture, @ericlewis, @flixos90, @helen, @Ipstenu, @jeremyfelt, @jorbin, @mattmiklic, @nbachiyski, @netweb, @ocean90, @sebastianpisula, @SergeyBiryukov, @swissspidy, @welcher, and @westonruter for their contributions!

#4-6, #week-in-core