diff --git a/composer.json b/composer.json
index b6ae71ae0..ab8087aaf 100644
--- a/composer.json
+++ b/composer.json
@@ -16,6 +16,7 @@
     ],
     "require": {
         "composer/installers": "^2.3",
+        "cweagans/composer-patches": "^1.7",
         "drupal/core-composer-scaffold": "^11.1",
         "drupal/core-project-message": "^11.1",
         "drupal/core-recommended": "^11.1",
@@ -25,10 +26,12 @@
         "drupal/paragraphs": "^1.19",
         "drupal/pathauto": "^1.13",
         "drupal/redirect": "^1.11",
+        "drupal/rel_to_abs": "^2.2",
         "drupal/tome": "^1.13",
         "drupal/twig_tweak": "^3.4",
         "drupal/weight": "^3.6",
-        "drush/drush": "^13.5"
+        "drush/drush": "^13.5",
+        "mglaman/composer-drupal-lenient": "^1.0"
     },
     "conflict": {
         "drupal/drupal": "*"
@@ -38,9 +41,11 @@
     "config": {
         "allow-plugins": {
             "composer/installers": true,
+            "cweagans/composer-patches": true,
             "dealerdirect/phpcodesniffer-composer-installer": true,
             "drupal/core-composer-scaffold": true,
             "drupal/core-project-message": true,
+            "mglaman/composer-drupal-lenient": true,
             "php-http/discovery": true,
             "phpstan/extension-installer": true,
             "tbachert/spi": true
@@ -105,6 +110,14 @@
                 "  * Remove the plugin that prints this message:",
                 "      composer remove drupal/core-project-message"
             ]
+        },
+        "drupal-lenient": {
+            "allowed-list": ["drupal/rel_to_abs"]
+        },
+        "patches": {
+            "drupal/rel_to_abs": {
+                "Automated Drupal 11 compatibility fixes for rel_to_abs": "https://www.drupal.org/files/issues/2024-03-24/rel_to_abs.2.2.5.rector.patch"
+            }
         }
     },
     "scripts": {
diff --git a/composer.lock b/composer.lock
index 8c1bd056c..3cb6aa3f3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "65c9a634f0c9f8b658fc062df72b47fc",
+    "content-hash": "b416719d22f3a349db2397ff583ef13f",
     "packages": [
         {
             "name": "asm89/stack-cors",
@@ -811,6 +811,54 @@
             },
             "time": "2024-12-13T19:25:56+00:00"
         },
+        {
+            "name": "cweagans/composer-patches",
+            "version": "1.7.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/cweagans/composer-patches.git",
+                "reference": "e190d4466fe2b103a55467dfa83fc2fecfcaf2db"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/cweagans/composer-patches/zipball/e190d4466fe2b103a55467dfa83fc2fecfcaf2db",
+                "reference": "e190d4466fe2b103a55467dfa83fc2fecfcaf2db",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^1.0 || ^2.0",
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "composer/composer": "~1.0 || ~2.0",
+                "phpunit/phpunit": "~4.6"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "cweagans\\Composer\\Patches"
+            },
+            "autoload": {
+                "psr-4": {
+                    "cweagans\\Composer\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Cameron Eagans",
+                    "email": "me@cweagans.net"
+                }
+            ],
+            "description": "Provides a way to patch Composer packages.",
+            "support": {
+                "issues": "https://github.com/cweagans/composer-patches/issues",
+                "source": "https://github.com/cweagans/composer-patches/tree/1.7.3"
+            },
+            "time": "2022-12-20T22:53:13+00:00"
+        },
         {
             "name": "dflydev/dot-access-data",
             "version": "v3.0.3",
@@ -2589,6 +2637,62 @@
                 "source": "https://git.drupalcode.org/project/redirect"
             }
         },
+        {
+            "name": "drupal/rel_to_abs",
+            "version": "2.2.5",
+            "source": {
+                "type": "git",
+                "url": "https://git.drupalcode.org/project/rel_to_abs.git",
+                "reference": "2.2.5"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://ftp.drupal.org/files/projects/rel_to_abs-2.2.5.zip",
+                "reference": "2.2.5",
+                "shasum": "0a5727dd470872aeb04a59aff332d23b4a4b34c0"
+            },
+            "require": {
+                "drupal/core": "^8 || ^9 || ^10 || ^11 || ^12"
+            },
+            "type": "drupal-module",
+            "extra": {
+                "drupal": {
+                    "version": "2.2.5",
+                    "datestamp": "1689234025",
+                    "security-coverage": {
+                        "status": "covered",
+                        "message": "Covered by Drupal's security advisory policy"
+                    }
+                }
+            },
+            "notification-url": "https://packages.drupal.org/8/downloads",
+            "license": [
+                "GPL-2.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "andrii.tiupa",
+                    "homepage": "https://www.drupal.org/user/2932651"
+                },
+                {
+                    "name": "danylevskyi",
+                    "homepage": "https://www.drupal.org/user/322039"
+                },
+                {
+                    "name": "podarok",
+                    "homepage": "https://www.drupal.org/user/116002"
+                },
+                {
+                    "name": "sanchiz",
+                    "homepage": "https://www.drupal.org/user/1671246"
+                }
+            ],
+            "description": "Filter for convertion of relative paths to absolute URLs",
+            "homepage": "https://www.drupal.org/project/rel_to_abs",
+            "support": {
+                "source": "https://git.drupalcode.org/project/rel_to_abs"
+            }
+        },
         {
             "name": "drupal/robotstxt",
             "version": "1.6.0",
@@ -4704,6 +4808,64 @@
             },
             "time": "2024-07-23T14:00:32+00:00"
         },
+        {
+            "name": "mglaman/composer-drupal-lenient",
+            "version": "1.0.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/mglaman/composer-drupal-lenient.git",
+                "reference": "bcb9be7f2d3160be43cd1d13a44580734a5afee0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mglaman/composer-drupal-lenient/zipball/bcb9be7f2d3160be43cd1d13a44580734a5afee0",
+                "reference": "bcb9be7f2d3160be43cd1d13a44580734a5afee0",
+                "shasum": ""
+            },
+            "require": {
+                "composer-plugin-api": "^2.0",
+                "php": ">=8.1"
+            },
+            "require-dev": {
+                "composer/composer": "^2.3",
+                "phpstan/extension-installer": "^1.1",
+                "phpstan/phpstan": "^1.6",
+                "phpstan/phpstan-phpunit": "^1.1",
+                "phpstan/phpstan-strict-rules": "^1.2",
+                "phpunit/phpunit": "^9.5",
+                "squizlabs/php_codesniffer": "^3.6"
+            },
+            "type": "composer-plugin",
+            "extra": {
+                "class": "ComposerDrupalLenient\\Plugin"
+            },
+            "autoload": {
+                "psr-4": {
+                    "ComposerDrupalLenient\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GPL-2.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Matt Glaman",
+                    "email": "nmd.matt@gmail.com"
+                }
+            ],
+            "support": {
+                "issues": "https://github.com/mglaman/composer-drupal-lenient/issues",
+                "source": "https://github.com/mglaman/composer-drupal-lenient/tree/1.0.7"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/mglaman",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-11-21T15:59:26+00:00"
+        },
         {
             "name": "mtownsend/xml-to-array",
             "version": "2.0.0",
diff --git a/config/sync/core.extension.yml b/config/sync/core.extension.yml
index 2da524b4a..b8032ff35 100644
--- a/config/sync/core.extension.yml
+++ b/config/sync/core.extension.yml
@@ -54,6 +54,7 @@ module:
   path: 0
   path_alias: 0
   redirect: 0
+  rel_to_abs: 0
   robotstxt: 0
   search: 0
   seo_checklist: 0
diff --git a/config/sync/filter.format.full_html.yml b/config/sync/filter.format.full_html.yml
index 326b358a1..932a33c4a 100644
--- a/config/sync/filter.format.full_html.yml
+++ b/config/sync/filter.format.full_html.yml
@@ -4,6 +4,8 @@ status: true
 dependencies:
   module:
     - editor
+    - markdown_easy
+    - rel_to_abs
 _core:
   default_config_hash: vpZysv3RHJjhYzq7O_q5q8mVlHdrSzKELmXyiX6RtV0
 name: 'Full HTML'
@@ -28,6 +30,15 @@ filters:
     status: true
     weight: 9
     settings: {  }
+  filter_html:
+    id: filter_html
+    provider: filter
+    status: false
+    weight: -10
+    settings:
+      allowed_html: ''
+      filter_html_help: true
+      filter_html_nofollow: false
   filter_htmlcorrector:
     id: filter_htmlcorrector
     provider: filter
@@ -40,3 +51,17 @@ filters:
     status: true
     weight: 15
     settings: {  }
+  markdown_easy:
+    id: markdown_easy
+    provider: markdown_easy
+    status: false
+    weight: 0
+    settings:
+      flavor: standard
+      tips: ''
+  rel_to_abs:
+    id: rel_to_abs
+    provider: rel_to_abs
+    status: true
+    weight: 0
+    settings: {  }