Better validation of the URL used in core HTTP requests.

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Anchor texturize to shortcodes to improve regex efficiency.

props miqrogroove.
see #29557 for segfault issues.

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Improvements to the output of the new post navigation template functions, including swapping the position of the previous and next links.

See #29808
Props obenland

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Validate image data.

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Customizer: Use deep-links for Backgrounds, Headers, and Widgets.

Replace links in admin menu and toolbar to Custom Background/Header screen with deep-links to the Customizer section.
On the Widgets screen display a link to the Customizer widgets panel.

props topher1kenobe, rzen, celloexpressions, westonruter
fixes #25569, #25571, #28032.
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`grunt autoprefixer` for [30374].

see #29326.
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Simplify selectors in [30374].

props wonderboymusic, adamsilverstein.
see #29326.
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Prevent high resource usage when hashing large passwords. props mdawaffe, pento

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More tests for [30466]. props xknown.

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Twenty Fifteen: bring back the border between post navigation links we lost in the_post_navigation changes.

Props iamtakashi, fixes #30414.


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Correct an SQL syntax error introduced in r30158. Adds tests.

Fixes #30339
See #18962
Props julien731

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WordPress 4.1-beta2

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Twenty Twelve and Thirteen: Use proper way to get customizer settings values.

Props obenland, kdoran. Fixes #29577.
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Media a11y: Don't set role=checkbox for the attachment details view.

Some unnecessary attributes were inherited from the attachment view, which created difficulties with screen readers.

fixes #30390.

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4.1-beta2-30484

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Update the DocBlock changelogs for the `nav_menu_css_class`, `nav_menu_item_id`, and `nav_menu_link_attributes` hooks following [30358], where `$depth` parameters were added.

Props kpdesign.
See [30358]. Fixes #19064.

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