Add 'wp_link_query_args' and 'wp_link_query' filters to allow for customizing the internal linking dialog. props CoenJacobs, goldenapples. fixes #18042.
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Clarify a string in discussion settings. props Ipstenu, DrewAPicture. fixes #16705.
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Add `media_submitbox_misc_sections` and `audio_submitbox_misc_sections` filters to allow removing or adding of attachment submitbox sections containing attachment metadata. props desroj, DrewAPicture. fixes #25171.

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Add dynamic classes for attachment metadata submitbox sections. see #22333, #25171.

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Avoid PHP notices when configuring the Incoming Links dashboard widget. fixes #25250.
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Document 'wp_link_query_args' and 'wp_link_query' filters. props DrewAPicture. fixes #18042.
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Alignment standards for [25296]. props DrewAPicture. see #25171.

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Inline documentation for hooks in http.php.

props tw2113.
see #25229.
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WP_HTTP: When streaming to file, ensure that fwrite() suceeds and correctly writes the file to disk. Fixes #16057

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WP_Filesystem: Ensure that all files are read/written correctly by verifying the return values from fwrite() and using FTP_BINARY mode (ASCII converts line endings as per the spec). See #25237

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WP_Filesystem: Let the code breathe, add some additional whitespace between method definitions and comments.

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WP_Filesyste: SSH2 PHP Extension support: Fix a case where defining a custom FS_CHMOD_FILE / FS_CHMOD_DIR constant wouldn't take effect due to chmod() failing with a invalid path. Fixes #23589

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git-svn-id: http://core.svn.wordpress.org/trunk@25268 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Upgrader: Deprecate a few mostly unused functions, wp_update_plugin(), wp_update_theme(), and, wp_update_core().
wp_update_core() was still used, as it was never updated to make use of the newer Skins. Fixes #21874

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Switch to using HTTPS connections for Plugin and Theme API requests when SSL is available. See #18577

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WP_HTTP: Correct the @since, and, @deprecated PHPDoc tags to reflect the class history. See #25007

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