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Adam Silverstein 89a99dba2f Revisions: framework for storing post meta revisions.
Enable the storing of post meta in revisions including autosaves and previews:

Add a new argument `revisions_enabled` to the `register_meta` function which enables storing meta in revisions.

Add a new `wp_post_revision_meta_keys` filter which developers can use to control which meta is revisioned - it passes an array of the meta keys with revisions enabled as well as the post type.

Meta keys with revisions enabled are also stored for autosaves, and are restored when a revision or autosave is restored. In addition, meta values are now stored with the autosave revision used for previews. Changes to meta can now be previewed correctly without overwriting the published meta (see #20299) or passing data as a query variable, as the editor currently does to preview changes to the featured image.

Changes to meta with revisions enabled are considered when determining if a new revision should be created. A new revision is created if the meta value has changed since the last revision.

Revisions are now saved on the `wp_after_insert_post` hook instead of `post_updated`. The `wp_after_insert_post` action is fired after post meta has been saved by the REST API which enables attaching meta to the revision. To ensure backwards compatibility with existing action uses, `wp_save_post_revision_on_insert` function exits early if plugins have removed the previous `do_action( 'post_updated', 'wp_save_post_revision' )` call.

Props: alexkingorg, johnbillion, markjaquith, WraithKenny, kovshenin, azaozz, tv-productions, p51labs, mattheu, mikeschroder, Mamaduka, ellatrix, timothyblynjacobs, jakemgold, bookwyrm, ryanduff, mintindeed, wonderboymusic, sanchothefat, westonruter, spacedmonkey, hellofromTonya, drewapicture, adamsilverstein, swisspiddy.
Fixes #20564, #20299.



Built from https://develop.svn.wordpress.org/trunk@56714


git-svn-id: http://core.svn.wordpress.org/trunk@56226 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-09-26 15:32:19 +00:00
wp-admin Revisions: framework for storing post meta revisions. 2023-09-26 15:32:19 +00:00
wp-content Bundled Theme: Add missing dimension attributes to images in Twenty Twenty-Two patterns. 2023-09-18 17:38:19 +00:00
wp-includes Revisions: framework for storing post meta revisions. 2023-09-26 15:32:19 +00:00
index.php Code Modernization: Replace `dirname( __FILE__ )` calls with `__DIR__` magic constant. 2020-02-06 06:33:11 +00:00
license.txt Happy New Year! 🎄 2023-01-01 00:06:18 +00:00
readme.html General: Increase the minimum supported version of PHP to 7.0.0. 2023-07-05 17:41:22 +00:00
wp-activate.php Docs: Various corrections and improvements to inline docs and docblocks. 2023-05-12 21:35:21 +00:00
wp-blog-header.php Code Modernization: Replace `dirname( __FILE__ )` calls with `__DIR__` magic constant. 2020-02-06 06:33:11 +00:00
wp-comments-post.php Docs: Use third-person singular verbs in various function descriptions, as per docblocks standards. 2023-06-14 14:11:16 +00:00
wp-config-sample.php Help/About: Use the new `/documentation/` URLs for HelpHub links in WordPress Admin. 2023-02-23 10:38:21 +00:00
wp-cron.php Cron API: Attempt to raise the PHP memory limit for cron event processing. 2023-05-30 18:48:19 +00:00
wp-links-opml.php Coding Standards: Various brace indentation corrections. 2022-11-26 21:01:17 +00:00
wp-load.php Bootstrap/Load: Require `wp-includes/compat.php` in `src/index.php`. 2023-07-16 12:16:24 +00:00
wp-login.php Script Loader: Use `wp_get_script_tag()` and `wp_get_inline_script_tag()`/`wp_print_inline_script_tag()` helper functions to output scripts on the frontend and login screen. 2023-09-25 21:05:21 +00:00
wp-mail.php Coding Standards: Remove extra parentheses in a few `str_contains()` conditionals. 2023-09-16 06:50:23 +00:00
wp-settings.php Editor: add background image support. 2023-09-19 01:29:23 +00:00
wp-signup.php General: Replace some instances of "blog" with "site" in documentation, translator comments, and user-facing text strings. 2023-06-19 18:27:27 +00:00
wp-trackback.php Code Modernization: Replace usage of `strpos()` with `str_contains()`. 2023-06-22 14:36:26 +00:00
xmlrpc.php Docs: Use third-person singular verbs in various function descriptions, as per docblocks standards. 2023-06-14 14:11:16 +00:00

readme.html

<!DOCTYPE html>
<html lang="en">
<head>
	<meta name="viewport" content="width=device-width" />
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>WordPress &#8250; ReadMe</title>
	<link rel="stylesheet" href="wp-admin/css/install.css?ver=20100228" type="text/css" />
</head>
<body>
<h1 id="logo">
	<a href="https://wordpress.org/"><img alt="WordPress" src="wp-admin/images/wordpress-logo.png" /></a>
</h1>
<p style="text-align: center">Semantic Personal Publishing Platform</p>

<h2>First Things First</h2>
<p>Welcome. WordPress is a very special project to me. Every developer and contributor adds something unique to the mix, and together we create something beautiful that I am proud to be a part of. Thousands of hours have gone into WordPress, and we are dedicated to making it better every day. Thank you for making it part of your world.</p>
<p style="text-align: right">&#8212; Matt Mullenweg</p>

<h2>Installation: Famous 5-minute install</h2>
<ol>
	<li>Unzip the package in an empty directory and upload everything.</li>
	<li>Open <span class="file"><a href="wp-admin/install.php">wp-admin/install.php</a></span> in your browser. It will take you through the process to set up a <code>wp-config.php</code> file with your database connection details.
		<ol>
			<li>If for some reason this does not work, do not worry. It may not work on all web hosts. Open up <code>wp-config-sample.php</code> with a text editor like WordPad or similar and fill in your database connection details.</li>
			<li>Save the file as <code>wp-config.php</code> and upload it.</li>
			<li>Open <span class="file"><a href="wp-admin/install.php">wp-admin/install.php</a></span> in your browser.</li>
		</ol>
	</li>
	<li>Once the configuration file is set up, the installer will set up the tables needed for your site. If there is an error, double check your <code>wp-config.php</code> file, and try again. If it fails again, please go to the <a href="https://wordpress.org/support/forums/">WordPress support forums</a> with as much data as you can gather.</li>
	<li><strong>If you did not enter a password, note the password given to you.</strong> If you did not provide a username, it will be <code>admin</code>.</li>
	<li>The installer should then send you to the <a href="wp-login.php">login page</a>. Sign in with the username and password you chose during the installation. If a password was generated for you, you can then click on &#8220;Profile&#8221; to change the password.</li>
</ol>

<h2>Updating</h2>
<h3>Using the Automatic Updater</h3>
<ol>
	<li>Open <span class="file"><a href="wp-admin/update-core.php">wp-admin/update-core.php</a></span> in your browser and follow the instructions.</li>
	<li>You wanted more, perhaps? That&#8217;s it!</li>
</ol>

<h3>Updating Manually</h3>
<ol>
	<li>Before you update anything, make sure you have backup copies of any files you may have modified such as <code>index.php</code>.</li>
	<li>Delete your old WordPress files, saving ones you&#8217;ve modified.</li>
	<li>Upload the new files.</li>
	<li>Point your browser to <span class="file"><a href="wp-admin/upgrade.php">/wp-admin/upgrade.php</a>.</span></li>
</ol>

<h2>Migrating from other systems</h2>
<p>WordPress can <a href="https://wordpress.org/documentation/article/importing-content/">import from a number of systems</a>. First you need to get WordPress installed and working as described above, before using <a href="wp-admin/import.php">our import tools</a>.</p>

<h2>System Requirements</h2>
<ul>
	<li><a href="https://secure.php.net/">PHP</a> version <strong>7.0</strong> or greater.</li>
	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.0</strong> or greater.</li>
</ul>

<h3>Recommendations</h3>
<ul>
	<li><a href="https://secure.php.net/">PHP</a> version <strong>7.4</strong> or greater.</li>
	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.7</strong> or greater OR <a href="https://mariadb.org/">MariaDB</a> version <strong>10.4</strong> or greater.</li>
	<li>The <a href="https://httpd.apache.org/docs/2.2/mod/mod_rewrite.html">mod_rewrite</a> Apache module.</li>
	<li><a href="https://wordpress.org/news/2016/12/moving-toward-ssl/">HTTPS</a> support.</li>
	<li>A link to <a href="https://wordpress.org/">wordpress.org</a> on your site.</li>
</ul>

<h2>Online Resources</h2>
<p>If you have any questions that are not addressed in this document, please take advantage of WordPress&#8217; numerous online resources:</p>
<dl>
	<dt><a href="https://wordpress.org/documentation/">HelpHub</a></dt>
		<dd>HelpHub is the encyclopedia of all things WordPress. It is the most comprehensive source of information for WordPress available.</dd>
	<dt><a href="https://wordpress.org/news/">The WordPress Blog</a></dt>
		<dd>This is where you&#8217;ll find the latest updates and news related to WordPress. Recent WordPress news appears in your administrative dashboard by default.</dd>
	<dt><a href="https://planet.wordpress.org/">WordPress Planet</a></dt>
		<dd>The WordPress Planet is a news aggregator that brings together posts from WordPress blogs around the web.</dd>
	<dt><a href="https://wordpress.org/support/forums/">WordPress Support Forums</a></dt>
		<dd>If you&#8217;ve looked everywhere and still cannot find an answer, the support forums are very active and have a large community ready to help. To help them help you be sure to use a descriptive thread title and describe your question in as much detail as possible.</dd>
	<dt><a href="https://make.wordpress.org/support/handbook/appendix/other-support-locations/introduction-to-irc/">WordPress <abbr>IRC</abbr> (Internet Relay Chat) Channel</a></dt>
		<dd>There is an online chat channel that is used for discussion among people who use WordPress and occasionally support topics. The above wiki page should point you in the right direction. (<a href="https://web.libera.chat/#wordpress">irc.libera.chat #wordpress</a>)</dd>
</dl>

<h2>Final Notes</h2>
<ul>
	<li>If you have any suggestions, ideas, or comments, or if you (gasp!) found a bug, join us in the <a href="https://wordpress.org/support/forums/">Support Forums</a>.</li>
	<li>WordPress has a robust plugin <abbr>API</abbr> (Application Programming Interface) that makes extending the code easy. If you are a developer interested in utilizing this, see the <a href="https://developer.wordpress.org/plugins/">Plugin Developer Handbook</a>. You shouldn&#8217;t modify any of the core code.</li>
</ul>

<h2>Share the Love</h2>
<p>WordPress has no multi-million dollar marketing campaign or celebrity sponsors, but we do have something even better&#8212;you. If you enjoy WordPress please consider telling a friend, setting it up for someone less knowledgeable than yourself, or writing the author of a media article that overlooks us.</p>

<p>WordPress is the official continuation of <a href="https://cafelog.com/">b2/caf&#233;log</a>, which came from Michel V. The work has been continued by the <a href="https://wordpress.org/about/">WordPress developers</a>. If you would like to support WordPress, please consider <a href="https://wordpress.org/donate/">donating</a>.</p>

<h2>License</h2>
<p>WordPress is free software, and is released under the terms of the <abbr>GPL</abbr> (GNU General Public License) version 2 or (at your option) any later version. See <a href="license.txt">license.txt</a>.</p>

</body>
</html>