Use DEWP's new auto-wp-polyfill support (#39629)

`@wordpress/dependency-extraction-webpack-plugin` has added the ability to detect a magic `/* wp:polyfill */` comment and only add `wp-polyfill` as a dependency if that is found. Since `wp-polyfill` is just a custom build of `core-js`, the intention is that `babel-plugin-polyfill-corejs3` (maybe via `@babel/preset-env`) would be used and then a custom Babel plugin would replace the `core-js` imports with the magic comment. This updates our Babel config to do just that, and removes the blanket addition of `wp-polyfill` via `injectPolyfill` or otherwise. Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/11277506405 Upstream-Ref: Automattic/jetpack@3af5563
Automattic · Oct 10, 2024 · b3e3a64 · b3e3a64
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 This is an alpha version! The changes listed here are not final.
 
 ### Changed
+- Only include `wp-polyfill` as a script dependency when needed.
 - Updated package dependencies.
 
 ### Removed

diff --git a/jetpack_vendor/automattic/jetpack-connection/dist/identity-crisis.asset.php b/jetpack_vendor/automattic/jetpack-connection/dist/identity-crisis.asset.php
@@ -1 +1 @@
-<?php return array('dependencies' => array('react', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-url'), 'version' => 'a88c39debce9f37e844d');
+<?php return array('dependencies' => array('react', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-polyfill', 'wp-url'), 'version' => 'a88c39debce9f37e844d');
diff --git a/jetpack_vendor/automattic/jetpack-connection/dist/jetpack-connection.asset.php b/jetpack_vendor/automattic/jetpack-connection/dist/jetpack-connection.asset.php
@@ -1 +1 @@
-<?php return array('dependencies' => array('jetpack-script-data', 'react', 'react-jsx-runtime', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-primitives', 'wp-url'), 'version' => '087d67cbaedaadbdfce4');
+<?php return array('dependencies' => array('jetpack-script-data', 'react', 'react-jsx-runtime', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-polyfill', 'wp-primitives', 'wp-url'), 'version' => '087d67cbaedaadbdfce4');
diff --git a/jetpack_vendor/automattic/jetpack-explat/CHANGELOG.md b/jetpack_vendor/automattic/jetpack-explat/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.12-alpha] - unreleased
+
+This is an alpha version! The changes listed here are not final.
+
+### Changed
+- Only include `wp-polyfill` as a script dependency when needed.
+
 ## [0.1.11] - 2024-10-10
 ### Changed
 - Updated package dependencies. [#39649]
@@ -60,6 +67,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - ExPlat: add condition to prevent fetching the experiment assignment if there's not anon id (meaning that Tracks is likely disabled) [#38327]
 - Updated package dependencies. [#38132]
 
+[0.1.12-alpha]: https://github.com/Automattic/jetpack-explat/compare/v0.1.11...v0.1.12-alpha
 [0.1.11]: https://github.com/Automattic/jetpack-explat/compare/v0.1.10...v0.1.11
 [0.1.10]: https://github.com/Automattic/jetpack-explat/compare/v0.1.9...v0.1.10
 [0.1.9]: https://github.com/Automattic/jetpack-explat/compare/v0.1.8...v0.1.9

diff --git a/jetpack_vendor/automattic/jetpack-explat/build/index.asset.php b/jetpack_vendor/automattic/jetpack-explat/build/index.asset.php
@@ -1 +1 @@
-<?php return array('dependencies' => array('react', 'react-jsx-runtime', 'wp-api-fetch', 'wp-polyfill', 'wp-url'), 'version' => '3c050f0c6b858f4a2ec5');
+<?php return array('dependencies' => array('react', 'react-jsx-runtime', 'wp-api-fetch', 'wp-url'), 'version' => '3c050f0c6b858f4a2ec5');
diff --git a/jetpack_vendor/automattic/jetpack-explat/src/class-explat.php b/jetpack_vendor/automattic/jetpack-explat/src/class-explat.php
@@ -20,7 +20,7 @@ class ExPlat {
 	 *
 	 * @var string
 	 */
-	const PACKAGE_VERSION = '0.1.11';
+	const PACKAGE_VERSION = '0.1.12-alpha';
 
 	/**
 	 * Initializer.

diff --git a/jetpack_vendor/automattic/jetpack-explat/webpack.config.js b/jetpack_vendor/automattic/jetpack-explat/webpack.config.js
@@ -19,11 +19,7 @@ module.exports = [
 			...jetpackWebpackConfig.resolve,
 		},
 		node: false,
-		plugins: [
-			...jetpackWebpackConfig.StandardPlugins( {
-				DependencyExtractionPlugin: { injectPolyfill: true },
-			} ),
-		],
+		plugins: [ ...jetpackWebpackConfig.StandardPlugins() ],
 		module: {
 			strictExportPresence: true,
 			rules: [

diff --git a/jetpack_vendor/automattic/jetpack-jitm/CHANGELOG.md b/jetpack_vendor/automattic/jetpack-jitm/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.1.26-alpha] - unreleased
+
+This is an alpha version! The changes listed here are not final.
+
+### Changed
+- Only include `wp-polyfill` as a script dependency when needed.
+
 ## [3.1.25] - 2024-10-10
 ### Changed
 - Updated package dependencies. [#39707]
@@ -779,6 +786,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Update Jetpack to use new JITM package
 
+[3.1.26-alpha]: https://github.com/Automattic/jetpack-jitm/compare/v3.1.25...v3.1.26-alpha
 [3.1.25]: https://github.com/Automattic/jetpack-jitm/compare/v3.1.24...v3.1.25
 [3.1.24]: https://github.com/Automattic/jetpack-jitm/compare/v3.1.23...v3.1.24
 [3.1.23]: https://github.com/Automattic/jetpack-jitm/compare/v3.1.22...v3.1.23

diff --git a/jetpack_vendor/automattic/jetpack-jitm/build/index.asset.php b/jetpack_vendor/automattic/jetpack-jitm/build/index.asset.php
@@ -1 +1 @@
-<?php return array('dependencies' => array('jquery', 'wp-polyfill'), 'version' => 'a41583033504a4ed0b13');
+<?php return array('dependencies' => array('jquery'), 'version' => 'a41583033504a4ed0b13');
diff --git a/jetpack_vendor/automattic/jetpack-jitm/src/class-jitm.php b/jetpack_vendor/automattic/jetpack-jitm/src/class-jitm.php
@@ -20,7 +20,7 @@
  */
 class JITM {
 
-	const PACKAGE_VERSION = '3.1.25';
+	const PACKAGE_VERSION = '3.1.26-alpha';
 
 	/**
 	 * The configuration method that is called from the jetpack-config package.

diff --git a/jetpack_vendor/automattic/jetpack-my-jetpack/CHANGELOG.md b/jetpack_vendor/automattic/jetpack-my-jetpack/CHANGELOG.md
@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 This is an alpha version! The changes listed here are not final.
 
+### Changed
+- Only include `wp-polyfill` as a script dependency when needed.
+
 ## [4.35.12] - 2024-10-10
 ### Changed
 - Update Boost's pricing table to include latest feature list. [#39130]

diff --git a/jetpack_vendor/automattic/jetpack-my-jetpack/composer.json b/jetpack_vendor/automattic/jetpack-my-jetpack/composer.json
@@ -9,8 +9,8 @@
 		"automattic/jetpack-assets": "^2.3.10",
 		"automattic/jetpack-boost-speed-score": "^0.3.12",
 		"automattic/jetpack-connection": "^5.1.3",
-		"automattic/jetpack-explat": "^0.1.11",
-		"automattic/jetpack-jitm": "^3.1.25",
+		"automattic/jetpack-explat": "^0.1.12-alpha",
+		"automattic/jetpack-jitm": "^3.1.26-alpha",
 		"automattic/jetpack-licensing": "^2.0.10",
 		"automattic/jetpack-plugins-installer": "^0.4.3",
 		"automattic/jetpack-redirect": "^2.0.4",

diff --git a/jetpack_vendor/automattic/jetpack-my-jetpack/webpack.config.js b/jetpack_vendor/automattic/jetpack-my-jetpack/webpack.config.js
@@ -19,11 +19,7 @@ module.exports = [
 			...jetpackWebpackConfig.resolve,
 		},
 		node: false,
-		plugins: [
-			...jetpackWebpackConfig.StandardPlugins( {
-				DependencyExtractionPlugin: { injectPolyfill: true },
-			} ),
-		],
+		plugins: [ ...jetpackWebpackConfig.StandardPlugins() ],
 		module: {
 			strictExportPresence: true,
 			rules: [

diff --git a/jetpack_vendor/i18n-map.php b/jetpack_vendor/i18n-map.php
@@ -30,23 +30,23 @@
     ),
     'jetpack-explat' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-explat',
-      'ver' => '0.1.11',
+      'ver' => '0.1.12-alpha1728575216',
     ),
     'jetpack-ip' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-ip',
       'ver' => '0.3.0',
     ),
     'jetpack-jitm' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-jitm',
-      'ver' => '3.1.25',
+      'ver' => '3.1.26-alpha1728575216',
     ),
     'jetpack-licensing' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-licensing',
       'ver' => '2.0.10',
     ),
     'jetpack-my-jetpack' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-my-jetpack',
-      'ver' => '4.35.13-alpha1728573025',
+      'ver' => '4.35.13-alpha1728575216',
     ),
     'jetpack-password-checker' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-password-checker',
@@ -66,7 +66,7 @@
     ),
     'jetpack-search-pkg' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-search',
-      'ver' => '0.45.8-alpha1728573025',
+      'ver' => '0.45.8-alpha1728575216',
     ),
     'jetpack-stats' => array(
       'path' => 'jetpack_vendor/automattic/jetpack-stats',