diff --git a/.ci/github/create_release_pull_request b/.ci/github/create_release_pull_request
index fff58ddec0..c99940dc0f 100755
--- a/.ci/github/create_release_pull_request
+++ b/.ci/github/create_release_pull_request
@@ -2,24 +2,26 @@
 
 set -eo pipefail
 
-# Create a pull request to merge develop into master.
-pull_request_response=$(curl -s -H "Accept: application/vnd.github+json" \
-  -H "Authorization: token $ACCESS_TOKEN" \
-  -X POST -d '{"title": "Release", "head": "develop", "base": "master"}' \
-  "https://api.github.com/repos/$REPO/pulls")
-
-# Check if the pull request creation was successful.
-if [ -z "$(echo "$pull_request_response" | jq -r '.html_url')" ]; then
-  message=$(echo "$pull_request_response" | jq -r '.errors[].message')
-  echo "Failed to create pull request."
-  echo "Error: $message"
-  exit 1
-else
-  opened_pr_url=$(echo "$pull_request_response" | jq -r '.html_url')
-fi
+# If we aren't updating an existing pull request, create one to merge develop into master.
+if [ -z "$PR_NUMBER" ]; then
+  pull_request_response=$(curl -s -H "Accept: application/vnd.github+json" \
+    -H "Authorization: token $ACCESS_TOKEN" \
+    -X POST -d '{"title": "Release", "head": "develop", "base": "master"}' \
+    "https://api.github.com/repos/$REPO/pulls")
+
+  # Check if the pull request creation was successful.
+  if [ -z "$(echo "$pull_request_response" | jq -r '.html_url')" ]; then
+    message=$(echo "$pull_request_response" | jq -r '.errors[].message')
+    echo "Failed to create pull request."
+    echo "Error: $message"
+    exit 1
+  else
+    opened_pr_url=$(echo "$pull_request_response" | jq -r '.html_url')
+  fi
 
-# Extract the pull request number from the response.
-pr_number=$(echo "$pull_request_response" | jq -r '.number')
+  # Extract the pull request number from the response.
+  PR_NUMBER=$(echo "$pull_request_response" | jq -r '.number')
+fi
 
 # Page through the /pulls/#/commits endpoint.
 page=1
@@ -28,7 +30,7 @@ per_page=100
 while true; do
   # Get the list of commits from the pull request and extract commit SHAs.
   commits_response=$(curl --silent -H "Authorization: token $ACCESS_TOKEN" \
-    "https://api.github.com/repos/$REPO/pulls/$pr_number/commits?per_page=$per_page&page=$page")
+    "https://api.github.com/repos/$REPO/pulls/$PR_NUMBER/commits?per_page=$per_page&page=$page")
 
   current_commit_shas=$(echo "$commits_response" | jq -r '.[].sha')
 
@@ -76,7 +78,7 @@ fi
 
 # Output changes that are not in a pull request.
 if [[ -n "${changes_without_pr[*]}" ]]; then
-  description+="\n## Changes without a pull rqeuest:\n"
+  description+="\n## Changes without a pull request:\n"
 
   for sha in "${changes_without_pr[@]}"; do
       description+="- $sha\n"
@@ -88,7 +90,7 @@ update_pull_request=$(curl -s -L \
   -H "Accept: application/vnd.github+json" \
   -H "Authorization: token $ACCESS_TOKEN" \
   -X PATCH -d "{\"body\": \"$description\"}" \
-  "https://api.github.com/repos/$REPO/pulls/$pr_number")
+  "https://api.github.com/repos/$REPO/pulls/$PR_NUMBER")
 
 if [[ -n "$pull_request_response" || -n "$update_pull_request" ]]; then
   echo "Pull request created: $opened_pr_url"
diff --git a/.github/workflows/release_pr.yml b/.github/workflows/release_pr.yml
index 1826849c47..4b7dd713c5 100644
--- a/.github/workflows/release_pr.yml
+++ b/.github/workflows/release_pr.yml
@@ -1,11 +1,16 @@
 name: Create release pull request
-on: workflow_dispatch
+on:
+  pull_request:
+    branches:
+      - master
+  workflow_dispatch:
 jobs:
   create_pull_request:
     runs-on: ubuntu-latest
     env:
       ACCESS_TOKEN: ${{ secrets.YALESITES_BUILD_TOKEN }}
       REPO: ${{ github.repository }}
+      PR_NUMBER: ${{ github.event.number }}
     steps:
     - name: Checkout
       uses: actions/checkout@v4
diff --git a/scripts/shared/content-import.sh b/scripts/shared/content-import.sh
index 7405485e03..68ceb15aee 100755
--- a/scripts/shared/content-import.sh
+++ b/scripts/shared/content-import.sh
@@ -22,10 +22,11 @@ if [ "$YALESITES_IS_LOCAL" == "1" ]; then
   homepage_nid=$(lando drush ev "$nid_command")
   lando drush cset system.site page.front "$homepage_nid" -y
 else
-  COMMAND=$(terminus connection:info "$SITE_MACHINE_NAME".dev --field=sftp_command)
+  [ -z "$env" ] && env="dev"
+  COMMAND=$(terminus connection:info "$SITE_MACHINE_NAME"."$env" --field=sftp_command)
   eval "$COMMAND:/files/ <<< 'put $STARTERKIT_FILE'"
-  terminus drush "$SITE_MACHINE_NAME".dev -- content:import ../../files/"$STARTERKIT_FILE"
+  terminus drush "$SITE_MACHINE_NAME"."$env" -- content:import ../../files/"$STARTERKIT_FILE"
   eval "$COMMAND:/files/ <<< 'rm $STARTERKIT_FILE'"
-  homepage_nid=$(echo "$nid_command" | terminus drush "$SITE_MACHINE_NAME".dev -- php-script - 2>/dev/null)
-  terminus drush "$SITE_MACHINE_NAME".dev -- cset system.site page.front "$homepage_nid" -y
+  homepage_nid=$(echo "$nid_command" | terminus drush "$SITE_MACHINE_NAME"."$env" -- php-script - 2>/dev/null)
+  terminus drush "$SITE_MACHINE_NAME"."$env" -- cset system.site page.front "$homepage_nid" -y
 fi
diff --git a/web/profiles/custom/yalesites_profile/composer.json b/web/profiles/custom/yalesites_profile/composer.json
index 6ace4eda62..62e6e05d3b 100644
--- a/web/profiles/custom/yalesites_profile/composer.json
+++ b/web/profiles/custom/yalesites_profile/composer.json
@@ -128,7 +128,8 @@
         "hide remove button": "https://www.drupal.org/files/issues/2020-05-13/hide_field_required_paragraphs_remove_button_1.patch"
       },
       "drupal/core": {
-        "plural results summary https://www.drupal.org/project/drupal/issues/2888320": "https://www.drupal.org/files/issues/2021-12-15/2888320-78.patch"
+        "plural results summary https://www.drupal.org/project/drupal/issues/2888320": "https://www.drupal.org/files/issues/2021-12-15/2888320-78.patch",
+        "Prevent empty block_content info fields from causing php deprecation notices": "https://www.drupal.org/files/issues/2023-07-21/3340159-empty-block-label_0.patch"
       },
       "drupal/entity_redirect": {
         "fix layout route https://www.drupal.org/project/entity_redirect/issues/3352265": "https://git.drupalcode.org/project/entity_redirect/-/merge_requests/6.patch"
@@ -143,6 +144,9 @@
         "fix description toggle for CKEditor fields https://www.drupal.org/project/gin/issues/3316265": "https://git.drupalcode.org/project/gin/-/merge_requests/227.patch",
         "update dark mode localstorage https://www.drupal.org/project/gin/issues/3387653": "https://git.drupalcode.org/project/gin/-/merge_requests/304.diff"
       },
+      "drupal/gin_lb": {
+        "fix multivalued fields throw an error": "https://www.drupal.org/files/issues/2024-01-02/gin_lb-fix-attribute-3387157-5.patch"
+      },
       "drupal/media_library_form_element": {
         "Order Media items https://www.drupal.org/project/media_library_form_element/issues/3168027":"https://www.drupal.org/files/issues/2022-01-22/order_media_items-3168027-8.patch",
         "Deprecated function: explode(): Passing null to parameter #2 ($string) of type string is deprecated https://www.drupal.org/project/media_library_form_element/issues/3277273": "https://www.drupal.org/files/issues/2023-01-25/deprecated-explode-3277273-11.patch"
@@ -162,6 +166,9 @@
       },
       "drupal/quick_node_clone": {
         "Fix cloning of inline blocks and paragraphs: https://www.drupal.org/project/quick_node_clone/issues/3100117": "https://www.drupal.org/files/issues/2023-04-25/quick-node-clone--inline-blocks--3100117-32.patch"
+      },
+      "drupal/section_library": {
+        "Fix access check issues on add_to_template link: https://www.drupal.org/project/section_library/issues/3241715": "https://www.drupal.org/files/issues/2022-09-21/3241715-6.patch"
       }
     }
   }
diff --git a/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.page.default.yml b/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.page.default.yml
index e605ec6a92..7437b9422a 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.page.default.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.page.default.yml
@@ -61,7 +61,6 @@ third_party_settings:
               4: 4
               5: 5
               6: 6
-              7: 7
               8: 8
       -
         layout_id: layout_onecol
diff --git a/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.profile.default.yml b/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.profile.default.yml
index 4a170b0b0b..225f23f7e3 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.profile.default.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/core.entity_view_display.node.profile.default.yml
@@ -60,7 +60,6 @@ third_party_settings:
               4: 4
               5: 5
               6: 6
-              7: 7
               8: 8
       -
         layout_id: ys_layout_two_column
@@ -79,7 +78,9 @@ third_party_settings:
               context_mapping: {  }
             weight: 0
             additional: {  }
-        third_party_settings: {  }
+        third_party_settings:
+          layout_builder_lock:
+            lock: {  }
   layout_builder_restrictions:
     allowed_block_categories:
       - 'Chaos Tools'
diff --git a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.gallery.field_gallery_items.yml b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.gallery.field_gallery_items.yml
index 1762af358d..0e03fadc6f 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.gallery.field_gallery_items.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.gallery.field_gallery_items.yml
@@ -13,7 +13,7 @@ field_name: field_gallery_items
 entity_type: block_content
 bundle: gallery
 label: Images
-description: ''
+description: 'This block requires a minimum of 2 gallery items.'
 required: true
 translatable: false
 default_value: {  }
diff --git a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.media_grid.field_media_grid_items.yml b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.media_grid.field_media_grid_items.yml
index e46b65e7db..7973980b7c 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.media_grid.field_media_grid_items.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.media_grid.field_media_grid_items.yml
@@ -13,7 +13,7 @@ field_name: field_media_grid_items
 entity_type: block_content
 bundle: media_grid
 label: Media
-description: ''
+description: 'This block requires a minimum of 2 media grid items.'
 required: false
 translatable: false
 default_value: {  }
diff --git a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.quick_links.field_links.yml b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.quick_links.field_links.yml
index 97cae4fb32..dc02479c11 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.quick_links.field_links.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.quick_links.field_links.yml
@@ -12,7 +12,7 @@ field_name: field_links
 entity_type: block_content
 bundle: quick_links
 label: Links
-description: ''
+description: 'This block requires a minimum of 3 and a maximum of 9 links.'
 required: true
 translatable: false
 default_value: {  }
diff --git a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.tabs.field_tabs.yml b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.tabs.field_tabs.yml
index 8079df4aa5..22fbcfaa85 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.tabs.field_tabs.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/field.field.block_content.tabs.field_tabs.yml
@@ -13,7 +13,7 @@ field_name: field_tabs
 entity_type: block_content
 bundle: tabs
 label: Tabs
-description: ''
+description: 'This block requires a minimum of 2 and a maximum of 5 tabs.'
 required: true
 translatable: false
 default_value: {  }
diff --git a/web/profiles/custom/yalesites_profile/config/sync/field.field.media.document.field_media_file.yml b/web/profiles/custom/yalesites_profile/config/sync/field.field.media.document.field_media_file.yml
index 8e3aa5a538..719f3a861e 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/field.field.media.document.field_media_file.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/field.field.media.document.field_media_file.yml
@@ -21,7 +21,7 @@ settings:
   handler: 'default:file'
   handler_settings: {  }
   file_directory: '[date:custom:Y]-[date:custom:m]'
-  file_extensions: 'txt doc docx pdf xls xlsx'
+  file_extensions: 'txt rtf doc docx pdf xls xlsx'
   max_filesize: ''
   description_field: false
 field_type: file
diff --git a/web/profiles/custom/yalesites_profile/config/sync/user.role.site_admin.yml b/web/profiles/custom/yalesites_profile/config/sync/user.role.site_admin.yml
index 89cb244eb9..51bfcc76fb 100644
--- a/web/profiles/custom/yalesites_profile/config/sync/user.role.site_admin.yml
+++ b/web/profiles/custom/yalesites_profile/config/sync/user.role.site_admin.yml
@@ -70,7 +70,6 @@ label: 'Site administrator'
 weight: 3
 is_admin: null
 permissions:
-  - 'access block library'
   - 'access content overview'
   - 'access contextual links'
   - 'access files overview'
diff --git a/web/profiles/custom/yalesites_profile/modules/custom/ys_core/js/block-form.js b/web/profiles/custom/yalesites_profile/modules/custom/ys_core/js/block-form.js
new file mode 100644
index 0000000000..3c3a43d278
--- /dev/null
+++ b/web/profiles/custom/yalesites_profile/modules/custom/ys_core/js/block-form.js
@@ -0,0 +1,110 @@
+((Drupal) => {
+  Drupal.behaviors.ysCoreBlockForm = {
+    attach: () => { // eslint-disable-line
+
+      /*
+      * Function to validate that all media items contain media.
+      *
+      * @param object blockType
+      *   blockType object.
+      *
+      * @return string
+      *   The error message or empty string.
+      * */
+      function getErrors(blockType) {
+        // Get all items of the specified type.
+        const items = document.querySelectorAll(blockType.itemSelector);
+
+        // Count the number of items present.
+        const numberOfItems = items.length;
+        if (numberOfItems < blockType.min || (blockType.max > 0 && numberOfItems > blockType.max)) {
+          let messageText = '';
+          if (blockType.max > 0) {
+            messageText = `Number of ${blockType.type} must be between ${blockType.min} and ${blockType.max}. `;
+          } else {
+            messageText = `Number of ${blockType.type} must be ${blockType.min} or more. `;
+          }
+          return messageText + `Number of ${blockType.type} added: ${numberOfItems}.`;
+        }
+
+        // An empty string signifies no errors and resets validation for the input.
+        return '';
+      }
+
+      /*
+      * Function to validate a block type.
+      *
+      * @param object blocktype
+      *   Object containing block type information for validation.
+      *
+      * @return void
+      * */
+      function validateBlockType(blockType) {
+        // Get the layout builder add and update forms.
+        const blockContentForm = document.querySelector('form[id^="block-content"]');
+        // Inputs and submit selectors are different on block content and layout builder forms.
+        const inputSelector = blockContentForm ? blockType.inputSelector : blockType.lbInputSelector;
+        const submitSelector = blockContentForm ? 'edit-submit' : 'edit-actions-submit';
+        const submitButton = document.querySelector(`input[data-drupal-selector=${submitSelector}]`);
+
+        if (submitButton) {
+          // On click, check for custom errors.
+          submitButton.addEventListener("click", () => {
+            const input = document.querySelector(inputSelector);
+            const errorMsg = getErrors(blockType);
+            // If there are any errors, set custom validity on the chosen input field.
+            input.setCustomValidity(errorMsg);
+          });
+        }
+      }
+
+      // Define block type objects with input to check plus min and max.
+      const blockTypes = [
+        {
+          // Tabs
+          itemSelector: 'tr.paragraph-type--tab',
+          inputSelector: 'input[data-drupal-selector^="edit-field-tabs"]',
+          lbInputSelector: 'input[data-drupal-selector^="edit-settings-block-form-field-tabs"]',
+          min: 2,
+          max: 5,
+          type: 'tabs',
+        },
+        {
+          // Quick links
+          itemSelector: 'input.ui-autocomplete-input',
+          inputSelector: 'input[data-drupal-selector^="edit-field-heading"]',
+          lbInputSelector: 'input[data-drupal-selector^="edit-settings-block-form-field-links"]',
+          min: 3,
+          max: 9,
+          type: 'links',
+        },
+        {
+          // Media Grid
+          itemSelector: '.paragraph-type--media-grid-item',
+          inputSelector: 'input[data-drupal-selector^="edit-field-heading"]',
+          lbInputSelector: 'input[data-drupal-selector^="edit-settings-block-form-field-heading"]',
+          min: 2,
+          max: 0,
+          type: 'media grid items',
+        },
+        {
+          // Gallery
+          itemSelector: '.paragraph-type--gallery-item',
+          inputSelector: 'input[data-drupal-selector^="edit-field-heading"]',
+          lbInputSelector: 'input[data-drupal-selector^="edit-settings-block-form-field-heading"]',
+          min: 2,
+          max: 0,
+          type: 'gallery items',
+        }
+      ];
+
+      // Apply the function to each block type.
+      blockTypes.forEach((blockType) => {
+        // Check the form for this block type.
+        if (document.querySelector(blockType.itemSelector)) {
+          validateBlockType(blockType);
+        }
+      });
+    },
+  };
+})(Drupal);
diff --git a/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.libraries.yml b/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.libraries.yml
index 149c9fb7a2..9b25dc607a 100644
--- a/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.libraries.yml
+++ b/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.libraries.yml
@@ -16,3 +16,6 @@ header_footer_settings:
       css/header-footer-settings.css: {}
   js:
     js/header-footer-settings.js: {}
+block_form:
+  js:
+    js/block-form.js: {}
diff --git a/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.module b/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.module
index 6bc108e820..78604ff0f1 100644
--- a/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.module
+++ b/web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.module
@@ -118,6 +118,41 @@ function ys_core_form_alter(&$form, $form_state, $form_id) {
       '#markup' => "<p>" . t('@description', $replacements) . "</p>",
     ];
   }
+
+  $block_content_forms = [
+    'block_content_tabs_form',
+    'block_content_quick_links_form',
+    'block_content_media_grid_form',
+    'block_content_gallery_form',
+    'block_content_tabs_edit_form',
+    'block_content_quick_links_edit_form',
+    'block_content_media_grid_edit_form',
+    'block_content_gallery_edit_form',
+  ];
+
+  if (in_array($form_id, $block_content_forms)) {
+    $form['#attached']['library'][] = 'ys_core/block_form';
+  }
+
+  $layout_builder_block_forms = [
+    'layout_builder_update_block',
+    'layout_builder_add_block',
+  ];
+
+  if (in_array($form_id, $layout_builder_block_forms)) {
+    // Get the block type from the form.
+    $block = $form['settings']['block_form']['#block'];
+    $limited_block_types = [
+      'tabs',
+      'quick_links',
+      'media_grid',
+      'gallery',
+    ];
+    if (in_array($block->bundle(), $limited_block_types)) {
+      $form['#attached']['library'][] = 'ys_core/block_form';
+    }
+
+  }
 }
 
 /**