Tests: Temporarily skip PDF tests if they fail due to ImageMagick permission errors.

Merges [48338], [48341] to the 5.2 branch.

See #50573.

Administration: Pass the result of `set-screen-option` filter to the new `set_screen_option_{$option}` filter to ensure backward compatibility.

Rename the `$keep` parameter of both filters to `$screen_option` for clarity, update the documentation to better reflect its purpose.

Follow-up to [47951].

Props Chouby, sswells, SergeyBiryukov.
Merges [48241] to the 5.2 branch.
Fixes #50392.

WordPress 5.2.7.

Editor: Ensure latest comments can only be viewed from public posts.

This brings the changes from [47984] to the 5.2 branch.
Props: poena, xknown.

General: Include merge info for [47960]

General: Backport several commits for release.

- Embeds: Ensure that the title attribute is set correctly on embeds.
- Editor: Prevent HTML decoding on by setting the proper editor context.
- Formatting: Ensure that wp_validate_redirect() sanitizes a wider variety of characters.
- Themes: Ensure a broken theme name is returned properly.
- Administration: Add a new filter to extend set-screen-option. 

Merges [47948-47951] to the 5.2 branch.
Props xknown, sstoqnov, vortfu, SergeyBiryukov, whyisjake.

Editor: Bump `package-lock.json` on the 5.2 branch.

Follow-up to [47946].

See #50094.

Editor: Bump Gutenberg dependecies for 5.2.6.

Changes:
 - @wordpress/block-library: 2.4.6 => 2.4.7
 - @wordpress/edit-post: 3.3.6 => 3.3.7

Fixes: #50094.
Props talldanwp, whyisjake.

Build/Test Tools: Trim the test matrix on Travis in order to speed up the 5.2 branch build.

This removes the PHP 7.2 and 7.1 jobs.

This also removes the PHP 7.3 job which runs without an object cache in place as the likelihood of a change being backported that only breaks 7.3 without an object cache is small.

See #42387, #40407.

Comments: Ensure that unmoderated comments won't be search indexed.

After a comment is submitted, only allow a brief window where the comment is live on the site.

Props jonkolbert, ayeshrajans, Asif2BD, peterwilsoncc, imath, audrasjb, jonoaldersonwp, whyisjake, SergeyBiryukov.
Merges [47887] and [47889] to the 5.2 branch.
See #49956.

Themes: Add "Block Editor Styles" and "Wide Blocks" to the list of WordPress theme features.

These were added to Theme Directory API in anticipation of being committed to core for WordPress 5.2+, which has not happened until now.

Follow-up to [meta8273].

Merges [47790] to the 5.2 branch.
See #46272.

Update the About page for WordPress 5.2.6

WordPress 5.2.6

Customize: Add additional filters to Customizer to prevent JSON corruption.

User: Invalidate `user_activation_key` on password update.
Query: Ensure that only a single post can be returned on date/time based queries.
Block Editor: Coding standards, properly escape class names.
Cache API: Ensure proper escaping around the stats method in the cache API.
Formatting: Expand `sanitize_file_name` to have better support for utf8 characters.

Brings the changes in [47633], [47634], [47635], [47636], [47637], and [47638] to the 5.2 branch.

Props: aduth, batmoo, ehti, ellatrix, jorgefilipecosta, nickdaugherty, noisysocks, pento, peterwilsoncc, sergeybiryukov, sstoqnov, talldanwp, westi, westonruter, whyisjake, whyisjake, xknown.

Build/Test Tools: Remove unused `::assertPostHasTerms()` method from `tests/term.php`.

The associated test was removed in [30241].

Merges [47341] to 3.7+ branches.
See #49485.

Build/Test Tools: Display PHPUnit information for PHP tests only (for 5.2 branch).

This avoids a build error on `travis:format` job, caused by Travis running PHPUnit 9.x by default, which requires PHP 7.3+.

See #49485.

Tests: Correct assertions in `test_site_dates_are_gmt()`.

`assertSame()` doesn't have the `$delta` parameter, only `assertEquals()` does.

Follow-up to [47313].

Merges [47318] to the 5.2 branch.
See #40364.

Tests: Use delta comparison in `test_site_dates_are_gmt()` to avoid race conditions.

Merges [47313] to the 5.2 branch.
See #40364.

WordPress 5.2.5

Ensure that a user can publish_posts before making a post sticky.

Props: danielbachhuber, whyisjake, peterwilson, xknown.

Prevent  stored XSS through wp_targeted_link_rel().

Props: vortfu, whyisjake, peterwilsoncc, xknown,  SergeyBiryukov, flaviozavan.

Update `wp_kses_bad_protocol()` to recognize `:` on uri attributes,

`wp_kses_bad_protocol()` makes sure to validate that uri attributes don’t contain invalid/or not allowed protocols. While this works fine in most cases, there’s a risk that by using the colon html5 named entity, one is able to bypass this function.

Brings r46895 to the 5.3 branch.

Props: xknown, nickdaugherty, peterwilsoncc.

Prevent stored XSS in the block editor.

Brings r46896 to the 5.3 branch.

Prevent escaped unicode characters become unescaped in unsafe HTML during JSON decoding.

Props: aduth, epiqueras.

REST API: Allow for multiple Vary: Origin headers in GET responses.

Simple fix, we pass false as the second parameter to the header function.

This is something that we added downstream of the 5.2.4 release, but we missed in 5.2/trunk.

Fixes #48309, see also [46544].
Props xknown, whyisjake.

Post WordPress 5.2.4 version bump. The 5.2 branch is now 5.2.5-alpha.

WordPress 5.2.4.

REST API: Send a Vary: Origin header on GET requests.

Add this header on all GET requests to prevent cached requests.

Fixes some code dulication from [46484] and backports the changes from [46484] to the 5.2 branch.
Props darthhexx, davidbinda, nickdaugherty, whyisjake.

Administration: Ensure that admin referer nonce is valid.

Coding standards, ensure that nonce is valid with identical, rather then equal operator.

Backports [46477] to the 5.2 branch.
Props vortfu, xknown, whyisjake.

Filesystem API: Prevent directory travelersals when creating new folders.

Reject file paths that contain sub-directory paths.

Props iandunn, xknown, sstoqnov, whyisjake.

Filesystem API: Prevent directory travelersals when creating new folders.

Reject file paths that contain sub-directory paths.

Backports [46476] to the 5.2 branch.

Props iandunn, xknown, sstoqnov, whyisjake.

Add merge information missed in r46474-46475.

HTTP API: Protect against hex interpretation.

Return earlier from wp_http_validate_url().

Props: iandunn, xknown, voldemortensen, whyisjake.

Query: Remove the static query property.

Prevent unauthenticated views of publicly queryables content types.

Props aaroncampbell, whyisjake, nickdaugherty, xknown.

Formatting: In `wp_validate_redirect()`, normalize the path when validating the location for relative URLs, to account for Windows paths.

Props peterwilsoncc, rconde, jmmathc, mat-lipe, Sixes, justinahinon, cmagrin, daxelrod, SergeyBiryukov.
Merges [46472] to the 5.2 branch.
Fixes #47980.

Build/Test Tools: Remove PHP 7.4 and nightly builds from Travis.

See #48225.

Remove the extra call for wp-sanitize from the script loader.

Merges [46073] to the 5.2 branch.
Fixes #47986.

Post WordPress 5.2.3 version bump.

WordPress 5.2.3.

Help/About: Update the About page for 5.2.3.

Props whyisjake, desrosj.
Fixes #47923.

Coding Standards: Fix WPCS issue in [45990].

Merges [46019] to the 5.2. branch.

Fix for URL sanitization in `wp_kses_bad_protocol_once()`.

Merges [45997] to the 5.2 branch.

Props irsdl, sstoqnov, whyisjake.

Improve handling the existing `rel` attribute in `wp_rel_nofollow_callback()`.

Merges [45990] to the 5.2 branch.
Props xknown, sstoqnov.

Update wp.a11y.speak() to sanitize HTML before display.

Merges [45979] to the 5.2 branch

Props iandunn, adamsilverstein, sstoqnov, peterwilsoncc

Improve URL validation in `wp_validate_redirect()`.

Merges [45971] to the 5.2 branch.
Props vortfu, whyisjake, peterwilsoncc.

Escape the output in `wp_ajax_upload_attachment()`.

Merges [45936] to the 5.2 branch.
Props whyisjake, sstoqnov.

Remove _convert_urlencoded_to_entities() from the get_the_content() callback.

Props vortfu, whyisjake, peterwilsoncc

WordPress 5.2.3 Release Candidate 1 version bump.

WordPress 5.2.3 Release Candidate 2

WordPress 5.2.3 Release Candidate 1

Customizer: Trim whitespace from custom link URLs.

This complements a similar fix for the Menus screen in [45655].

Props donmhico, audrasjb.
Merges [45869] to the 5.2 branch.
Fixes #47888. See #47723.

Docs: Update `@since` tag for new JS functions and variables introduced in [45572].

Props garrett-eclipse.
Merges [45867] to the 5.2 branch.
See #47145.

Accessibility: Make the Media modal an ARIA modal dialog.

For a number of years, the Media modal missed an explicit ARIA role and the required attributes for modal dialogs.

This was confusing for assistive technology users, since they may not realize they're inside a dialog, and that consequently the keyboard interactions may be different from the rest of the page. Lack of an explicit label for the dialog was confusing as well, since assistive technology users didn't have an immediate sense of what the dialog is for.

This change makes the Media modal meet the ARIA Authoring Practices recommendations, helping users better understand the purpose and interactions with the modal. Also, it makes sure to hide the rest of the page content from assistive technologies, until support for `aria-modal="true"` improves.

Additionally:
- moves the modal H1 heading to the beginning of the modal content 
- changes the modal left menu position to make visual and DOM order match 
- improves the `wp.media.view.FocusManager` documentation

Props afercia.
Merges [45572] to the 5.2 branch.
Fixes #47145.

Accessibility: Fix the `alt` attribute of the Gallery images within the Classic Editor.

Passes the images `alt` attribute value to the Gallery template used within the Classic Editor.

Props yarnboy, wpboss.
Merges [45725] to the 5.2 branch.
Fixes #47687.

Twenty Seventeen: Correct height for a Button block without text.

Props ianbelanger, laurelfulford, nayana123.
Merges [45764], [45861], and [45863] to the 5.2 branch.
Fixes #47414.

Accessibility: Fix the order of the Previous, Next, and Close buttons in the Attachment Details modal.

Making the visual and DOM order match benefits keyboard users who navigate documents sequentially and expect the focus order to be consistent with the sequential reading order.

Props afercia.
Merges [45506] to the 5.2 branch.
Fixes #47458.

Block Editor: Fix the link to the classic editor when incompatible meta boxen are detected.

Props tmatsuur, mukesh27.
Merges [45618] to the 5.2 branch.
Fixes #45935.

Twenty Seventeen: Correct the CSS selectors intended to fix hover colors for MediaElement controls.

This is a follow-up to the previous fix in [45146], which didn't work as expected.

Props ryokuhi.
Merges [45576] to the 5.2 branch.
Fixes #47543. See #40843.

Twenty Seventeen: Accessibility: Add missing focus state for native audio and video embeds.

Props kjellr, karlgroves.
Merges [45425] to the 5.2 branch.
Fixes #47190.

Twenty Nineteen: Revise Latest Posts block styles to support post content options.

Props kjellr, ianbelanger.
Merges [45761] to the 5.2 branch.
Fixes #47340.

Upgrade/Install: Bring some consistency to installation screen styles.

* Include `forms.css` and `l10n.css`, for consistency with login screen and other admin screens.
* Remove redundant `@import` directives from `login.css` for files already declared as dependencies.
* Adjust margin on password strength meter for consistency with other fields.
* Increase font size for "You will need this password to log in" notice.
* Fix misaligned icon on "Hide" button for the password.

Props iseulde, [email protected], bassgang, cdog, johnbillion, nmenescardi, mukesh27, alpipego, SergeyBiryukov.
Merges [45673] to the 5.2 branch.
Fixes #35776, #43483, #47757, #47758.

Customize: Make the color picker close when clicking on the empty area on the right.

Props monikarao, afercia.
Merges [45722] to the 5.2 branch.
Fixes #47693.

Accessibility: Toolbar: Make the `min-width` value for `#wpadminbar` at `782px` breakpoint consistent with that of `<body>`.

This ensures that the "My Account" toolbar item stays visible at high zoom levels.

Props isabel_brison, chetan200891.
Merges [45684] to the 5.2 branch.
Fixes #47603.

Media: Reduces the bulk media options to have one primary button.

This fixes where 2 primary buttons were showing for bulk actions within media trash.

Props garrett-eclipse, afercia, ianbelanger, SergeyBiryukov, karmatosed.
Merges [45701] to the 5.2 branch.
Fixes #46757, #46758

Accessibility: Improve the media views upload Dismiss Errors button.

- makes the Dismiss Errors button visible in the media views inline uploader
- avoids a focus loss when activating the Dismiss Errors button

See the related GitHub issue from the WPCampus accessibility audit https://github.com/WordPress/gutenberg/issues/15354

Props afercia.
Merges [45376] to the 5.2 branch.
Fixes #47113.

Accessibility: Fix the headings hierarchy in the legacy Custom Background and Custom Header pages.

Props afercia.
Merges [45411] to the 5.2 branch.
Fixes #47386.

Media: Make sure the bottom media toolbar content is fully visible with Internet Explorer 11.

Props mspatovaliyski, afercia.
Merges [45526] to the 5.2 branch.
Fixes #47502.

Formatting: Don't convert smilies in ignored tags that have attributes.

Smilies in ignored tags are not supposed to be converted to emoji, but this can malfunction if the tag has attributes. For example, the Preformatted block with add a `class` to the `<pre>` tag.

Props pento, jikamens.
Merges [45569] to the 5.2 branch.
Fixes #47489.

Editor: Correct `since` annotation for the `excerpt_allowed_blocks` filter.

Props mukesh27, rabmalin.
Merges [45284] to the 5.2 branch.
Fixes #47079.

Accessibility: Improve settings tables and forms after [45403].

- adds `role="presentation"` to the edit comment table 
- removes a few pointless `<fieldset>` elements
- adds a few missing `<label>` elements
- adds the CSS class `class="td-full"` to table rows spanning to multiple cells
- adds explicit `scope="row"` attribute to the table headers in `options-permalink.php`: this table is better communicated as data table 
- uses consistent label association in the "Privacy Settings" page
- in the installation page "Set up your database connection": associates descriptions to their inout fields using `aria-describedby`
- improves the link to gravatar.com in the `user-edit.php` page

Props afercia.
Merges [45416] to the 5.2 branch.
See #46899.
Fixes #47390.

Accessibility: Make sure layout tables across the admin are correctly linearized.

Adds `role="presentation"` to the `<table>` elements used for layout purposes.

Ideally, HTML tables should be used for tabular data. When tables are used for layout purposes, it's important to remove any native semantics so that assistive technologies can correctly announce the table content in a linearized fashion.

Props greatislander, afercia.
Merges [45403] to the 5.2 branch.
See #46899.

Site Health: Use correct variable when checking PHP requirements for a plugin update in `WP_Plugins_List_Table::single_row()`.

Props diddledan, sharaz, vaishalipanchal, afragen.
Merges [45750] to the 5.2 branch.
Fixes #47835.

Menus: Trim whitespace from custom link URLs.

Props majemedia, SergeyBiryukov.
Merges [45655] and [45656] to the 5.2 branch.
Fixes #47723.

Editor: Fix undefined `$locked` var in edit-form-blocks.php when the `show_post_locked_dialog` filter is used to disable displaying of the dialog.

Props aprea.
Merges [45564] to the 5.2 branch.
Fixes #47604.

Customize: Fix text direction for color picker in RTL.

Props vjik, SergeyBiryukov.
Merges [45626] to the 5.2 branch.
Fixes #47688. See #23740.

Block Editor: Avoid a PHP warning when a theme adds an editor style with an empty filename.

Props pento, gqevu6bsiz.
Merges [45619] to the 5.2 branch.
Fixes #45739.

Menus: Fix the Custom Links text fallback.

When adding a Custom Link and leaving the "Link Text" field empty, WordPress used to set a default fallback text: "Menu Item".

The changes in [36379] broke this behavior making the fallback text: `(Pending)`, with a leading space.

Pending major refactoring of the Menus page (which is going to use a block-based user interface) this change just restores the original behavior by adding the fallback text to the related AJAX response.

Props christophherr, Fencer04, thakkarhardik, backermann1978, audrasjb.
Merges [45727] to the 5.2 branch.
Fixes #38415.

Plugins: Fix the plugin details modal layout after [45520].

Props mukesh27, marybaum, audrasjb.
Merges [45563] to the 5.2 branch.
Fixes #47561.

Help/About: Improve wording of PHP Error Protection section.

Merges [45551] to the 5.2 branch.

Props pedromendonca, garrett-eclipse.
See #47475.
Fixes #47538.

Post WordPress 5.2.2 version bump.

Help/About: Update the About page for WordPress 5.2.2.

Reviewed by ocean90, desrosj.

Props audrasjb.
Fixes #47558.

WordPress 5.2.2.

Bump version on the 5.2 branch after releasing 5.2.2-RC2.

Bump version to 5.2.2-RC2

Add a Recovery Mode Exit button to the notice. This fixes it in responsive view.

Props desrosj, karmatosed, chetan200891, afercia, afragen, garrett-eclipse.
Merges [45529] to the 5.2 branch.
Fixes #47070.

Customize: Remove “Update” link for themes on multisite installs.

In [38887], installing themes in the Customizer was disabled for multisite installs. However, an update link continues to be displayed when a theme update is available. Clicking the link causes a JavaScript error.

This removes that update link because updates cannot actually be performed in the Customizer in this situation.

Reviewed by desrosj and azaozz.
Merges [45527] to the 5.2 branch.

Props desrosj, earnjam, mukesh27, audrasjb, garrett-eclipse.
Fixes #46997.

Administration: Improve the horizontal centering of the Site Health tabs.

Props dkarfa, davidbaumwald, Clorith, tinkerbelly, afercia.
Merges [45522] to the 5.2 branch.
Fixes #46881 for 5.2.2.

Administration: Fix the responsive layout after changes to the Screen Options and Help buttons position.

Merges [45520] to the 5.2 branch.
Fixes #45094 for 5.2.2.

Post WordPress 5.2.2-RC1 version bump.

WordPress 5.2.2-RC1.

I18N: Merge duplicate "authenticity could not be verified" strings, fix comma placement on About page.

Props pedromendonca, garrett-eclipse.
Merges [45515] to the 5.2 branch.
Fixes #47475.

Administration: Improve the Site Health tables layout for small screens.

Props immeet94, jankimoradiya, desrosj, shashank3105, chetan200891, Clorith, hedgefield. 

Merges [45463] to the 5.2 branch.
Fixes #46960 for 5.2.2.

Administration: Remove extra border from the Screen Options and Help buttons.

The extra border was visible in the responsive view for smaller screens after [32844].

Props jitendrabanjara1991.

Merges [45501] and [45502] to the 5.2 branch.
Fixes #46749 for 5.2.2.

I18N: Merge duplicate "Status" and "Info" strings on Site Health screens.

Props ramiy.
Merges [45488] to the 5.2 branch.
Fixes #47227.

Media: Restore correct arrow direction in RTL in Attachment Details modal.

Reverts [29264]. As we now have a build task to replace dashicons for RTL, the CSS rules no longer worked as expected and had the opposite effect.

Props ramiy, SergeyBiryukov.
Merges [45495] to the 5.2 branch.
Fixes #46289.

I18N: Combine similar strings with minor differences.

Merges [45298] to the 5.2 branch.

Props dimadin.
Fixes #47158.

Accessibility: Improve the Screen Options and Help buttons order.

- makes the buttons visual order match the DOM order
- also, restores the focus style on the "hero" primary button after [34948]

Props vrimill, mukesh27 for reporting and testing.
Merges [45503] to the 5.2 branch.
Fixes #45094 for 5.2.2.

Site health: Introduce `view_site_health_checks` capability.

Introduces the faux primitive capability `view_site_health_checks` available to single site admins and multisite super-admin to view the site health page within the admin.

The capability is mapped to the `install_plugins` capability without being dependent on the file system being writable. This fixes a bug where the feature couldn't be used by sites unable to write to the file system or managed through version control.

The capability is granted on the `user_has_cap` filter.

Props birgire, Clorith, palmiak, peterwilsoncc, spacedmonkey.
Merges [45507] to the 5.2 branch.
Fixes #46957 for 5.2.2.

Block Editor: Update packages to the ones slated for WP5.2.2

- Fix the template validation notice
 - Fix for focus jumps when typing in meta attributes

Packages updated:

 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]

Props aduth, desrosj.
Merges [45481] to the 5.2 branch.
Fixes #47429.

Post WordPress 5.2.1 version bump. The 5.2 branch is now 5.2.2-alpha.

WordPress 5.2.1.

Post WordPress 5.2.1-RC2 version bump.

WordPress 5.2.1-RC2.

Feeds: Ensure a feed’s `<lastBuildDate>` has the correct date.

The maximum modified time for a is currently being determined after an arbitrary date format is applied. Because the string sort in `max()` is being used to return the highest (most recent) modified value, the incorrect date is sometimes returned. This was introduced in [45247].

Merges [45367] to the 5.2 branch.

Reviewed by desrosj, SergeyBiryukov.
Props onlanka, Rarst, mukesh27.
Fixes #47304.

Upgrade/Install: As a follow-up to [45357], when linking to Update PHP support page in error messages, check if `wp_get_update_php_url()` and `wp_get_update_php_annotation()` exist.

`wp-admin/includes/update-core.php` runs in the context of the previous WordPress version. Any calls to newly introduced functions there need to be checked via `function_exists()`.

Reviewed by desrosj, earnjam, SergeyBiryukov.

Props dd32, imath.
Merges [45365] to the 5.2 branch.
Fixes #47323.

Help/About: Replace minor release strings with pre-existing ones.

Also, update the number of bugs fixed in 5.2.1 to include those being fixed after RC1.

Reviewed by desrosj, SergeyBiryukov.

Props ocean90, SergeyBiryukov, mukesh27.
Fixes #47312.

Post WordPress 5.2.1-RC1 version bump.

WordPress 5.2.1-RC1.

Help/About: Update the about page for 5.2.1.

32 bugs were squashed in 5.2.1.

Props earnjam, ianbelanger, chanthaboune.
Fixes #47294.

Upgrade/Install: Improve error messages displayed when WordPress update fails due to an incompatible PHP version by linking to the Update PHP support page.

Additionally, fix a regression in [44451] where the error message in `wp-admin/upgrade.php` was prepared, but never displayed.

Props afragen, netweb, hareesh-pillai, SergeyBiryukov.
Merges [45357] to the 5.2 branch.
Fixes #46937.

Upgrade/Install: Don't run signature verify on slow 32-bit systems.

The `sodium_compat` library can be very slow for certain operations on 32-bit architectures, which can lead to web server timeouts while attempting to verify an update. This adds a runtime speed check to skip signature verification on systems that would otherwise time out. Includes simple unit tests.

Merges [45345] to the 5.2 branch.

Props dd32, paragoninitiativeenterprises, tellyworth.
Fixes #47186.

Upgrade/Install: Update `sodium_compat` to v1.10.0.

This adds a `runtime_speed_test()` method for estimating if the 32-bit implementation is fast enough for expensive computations.

Merges [45344] to the 5.2 branch.

Props paragoninitiativeenterprises, tellyworth.
See #47186.

jQuery: bring `jquery.js` back into the WordPress SVN repo and backport the patch from 3.4.0.

Merges [45342] to the 5.2 branch.

Props MikeNGarrett, peterwilsoncc, azaozz.
Fixes #47020.

Media: Fix deletion of files on Windows.

`wp_delete_file_from_directory()` should always normalize file paths before comparing.

Props tonybogdanov, SergeyBiryukov.
Merges [45352] to the 5.2 branch.
Fixes #47185.

Build/Test Tools: Use a non-zero exit code in `wp_check_php_mysql_versions()` when minimum PHP or MySQL requirements are not met.

This allows automated scripts and test suites to interpret the result correctly.

Props jrf, spacedmonkey.
Merges [45350] to the 5.2 branch.
Fixes #47169.

Formatting: Adjust `wp_targeted_link_rel()` to ensure JSON format is preserved and correct quotes are used when adding the missing `rel` attribute.

Props birgire, TobiasBg, fierevere, audrasjb, SergeyBiryukov.
Merges [45348] to the 5.2 branch.
Fixes #46316, #47244.

Site Health: In PHP modules test description, move the space before the screen reader text out from the translatable string.

Props ocean90, tobifjellner.
Merges [45346] to the 5.2 branch.
Fixes #47161.

Update TinyMCE to 4.9.4. Changelog: https://github.com/tinymce/tinymce/blob/4.x/changelog.txt.

Props parkcityj, azaozz.
Merges [45316] to the 5.2 branch.
Fixes #47229 #47205.

Accessibility: In back-compat code added for `get_search_form()` in [44956], when checking the (previously boolean) `$args` value, account for non-strict comparison.

Props dkarfa, sachyya-sachet.
Merges [45340] to the 5.2 branch.
Fixes #47177. See #42057.

Help/About: Restore placeholder for WordPress version in tagline on About, Credits, and Freedoms pages to include minor versions.

Props desrosj, mukesh27.
Merges [45338] to the 5.2 branch.
Fixes #46408.

Site Health: Use correct singular string for plugin and theme version tests.

Props edocev, Presskopp.
Merges [45336] to the 5.2 branch.
Fixes #47264.

I18N: Avoid using placeholders for link start and end tags in alt text description strings added in [45158].

Use an established pattern of moving additional link attributes out of the translatable string.

Props dimadin.
Merges [45334] to the 5.2 branch.
Fixes #47159.

Accessibility: Improve the "skip links" position for medium and small screens.

Merges [45301] to the 5.2 branch.

Props afercia.
Fixes #47065.

Site Health: In PHP modules test, ensure the description is translated as a whole sentence, not as separate string parts.

Props dimadin, SergeyBiryukov.
Merges [45331] to the 5.2 branch.
Fixes #47161.

Site Health: Update mergeinfo for [45329].

See #47297.

Site Health: In HTTP requests test, when checking whether the `WP_HTTP_BLOCK_EXTERNAL` constant is defined, check its value as well.

Props chesio.
Merges [45328] to the 5.2 branch.
Fixes #47297.

Privacy: Prevent email field for personal data requests from overflowing.

Merges [45326] to the 5.2 branch.

Props anischarolia, ianbelanger, afercia.
Fixes #46961.

Menus: Fix alignment of menu actions on mobile.

In [41197], changes were made to improve the responsive view for the Menu Name field and Save buttons. This caused the Delete Menu button to be misaligned.

Merges [45324] to the 5.2 branch.

Props ianbelanger, audrasjb, afercia, mukesh27.
Fixes #47173.

Site Health: Improve alignment and spacing for section headers.

This changes the CSS for Site Health headers to use flexbox, which helps ensure the text is vertically aligned center and consistently spaced in both the Status and Info tabs. It also fixes an issue where the loading spinner GIF was cut off on smaller screens (originally reported in #47203.

Merges [45322] to the 5.2 branch.

Props Presskopp, odminstudios, kjellr, afercia, desrosj, hedgefield, ianbelanger, xavortm.
Fixes #47063.

Block Editor: Upgrade WordPress packages to the latest versions.

Updated packages:

 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]
 - @wordpress/[email protected]

Props: youknowriad, gwwar, iseulde, tfrommen, gziolo.

Merges [45319] to the 5.2 branch.
Fixes #47284.

Accessibility: Add aria-current to the links in the <nav> elements introduced in [44905].

Also fixes a few translators comments and coding standards.

Merges [45300] to the 5.2 branch.

Props audrasjb, afercia.
Fixes #47106.

Bootstrap/Load: Prevent PHP errors when a drop-in triggers fatal error protection.

When a drop-in (such as `advanced-cache.php`) contains a PHP error, additional PHP errors are caused when displaying the error protection screen because `load_default_textdomain()` and `WP_Error` are not yet available.

Though recovery mode is not supported for `mu-plugins` and drop-ins, fatal error protection is. This change ensures the error screen is displayed when a fatal error is encountered within a drop-in and not a white screen.

Merges [45311] to the 5.2 branch.

Props TimothyBlynJacobs, spacedmonkey, daxelrod.
Fixes #47265.

Site Health: Improve vertical alignment of icons in test result descriptions.

This change removes redundant CSS properties for different health check statuses in favor of utilizing the `.dashicons` class already in Core to define them more consistently. This also fixes the vertical alignment issues.

Merges [45309] to the 5.2 branch.

Props chetan200891, Clorith, desrosj.
Fixes #46940.

Site Health: Link to the correct plugin update screen in multisite installs.

Merges [45308] to the 5.2 branch.

Props Clorith, sebastienserre, jeremyfelt, desrosj.
Fixes #47189.

Administration: Remove duplicate font-face declaration in Dashicons CSS.

This was causing console warnings in some browsers.

Merges [45310] to the 5.2 branch.

Props aduth, joen, afercia, timph, ianbelanger.
Fixes #47183.

Administration: Prevent cards on the Tools page from overflowing on small screens.

Merges [45296] to the 5.2 branch.

Props anischarolia, mukesh27.
Fixes #46972.

Post WordPress 5.2 version bump.

Help/About: Move 5.2 tagline to Freedoms and Credits.

Reviewed by ocean90, SergeyBiryukov.
Props ocean90.
Fixes #46901.

WordPress 5.2.

Default Themes: Bump the version numbers and release dates.

Update the theme versions and release dates for the default themes, in time for WordPress 5.2.

The POT files for Twenty Eleven and Twenty Ten have also been updated.

Reviewed by desrosj, jorbin.
Merges [45289] to the 5.2 branch.
Fixes #47172.

Help/About: Final 5.2 about page updates.

Use final image URLs and fix a bug in IE11 where images were being cut off.

Reviewed by afercia, desrosj.
Merges [45287] to the 5.2 branch.

Props afercia, SergeyBiryukov, ianbelanger, desrosj, audrasjb.
Fixes #46901.

Fix `setup_postdata()` to set the (inside the loop) globals before `the_post` action is fired. Follow-up from #42814 and [44941].

Props david.binda, spacedmonkey, boonebgorges, birgire, jorbin, azaozz.
Merges [45285] from trunk.
Fixes #47114 for 5.2.

Branch 5.2.