diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 563def2e..147b8ff3 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -279,7 +279,7 @@ Fictioneer customizes WordPress by using as many standard action and filter hook
 | `customize_register` | `fictioneer_add_customizers` (20)
 | `customize_save_after` | `fictioneer_watch_for_customizer_updates` (10)
 | `delete_comment` | `fictioneer_delete_cached_story_card_by_comment` (10), `fictioneer_decrement_story_comment_count` (10)
-| `delete_post` | `fictioneer_refresh_post_caches` (20), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_purge_transients` (10)
+| `delete_post` | `fictioneer_refresh_post_caches` (20), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_purge_transients_after_update` (10)
 | `do_feed_rss2` | `fictioneer_main_rss_template` (10)
 | `do_meta_boxes` | `fictioneer_remove_custom_fields_meta_boxes` (1)
 | `edit_comment` | `fictioneer_comment_edit` (20), `fictioneer_edit_comment` (10)
@@ -298,15 +298,15 @@ Fictioneer customizes WordPress by using as many standard action and filter hook
 | `publish_to_draft` | `fictioneer_chapter_to_draft` (10)
 | `rest_api_init` | `fictioneer_register_endpoint_get_story_comments` (10)
 | `restrict_manage_posts` | `fictioneer_add_chapter_story_filter_dropdown` (10)
-| `save_post` | `fictioneer_refresh_chapters_schema` (20), `fictioneer_refresh_chapter_schema` (20), `fictioneer_refresh_collections_schema` (20), `fictioneer_refresh_post_caches` (20), `fictioneer_refresh_post_schema` (20), `fictioneer_refresh_recommendations_schema` (20), `fictioneer_refresh_recommendation_schema` (20), `fictioneer_refresh_stories_schema` (20), `fictioneer_refresh_story_schema` (20), `fictioneer_save_seo_metabox` (10), `fictioneer_save_word_count` (10), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_update_shortcode_relationships` (10), `fictioneer_purge_transients` (10), `fictioneer_save_story_metaboxes` (10), `fictioneer_save_chapter_metaboxes` (10), `fictioneer_save_extra_metabox` (10), `fictioneer_save_support_links_metabox` (10), `fictioneer_save_collection_metaboxes` (10), `fictioneer_save_recommendation_metaboxes` (10), `fictioneer_save_post_metaboxes` (10), `fictioneer_delete_cached_story_card_after_update` (10), `fictioneer_rebuild_story_data_collection` (999), `fictioneer_post_chapter_to_discord` (99), `fictioneer_bulk_edit_save_patreon` (10), `fictioneer_bulk_edit_save_chapter_fields` (10)
+| `save_post` | `fictioneer_refresh_chapters_schema` (20), `fictioneer_refresh_chapter_schema` (20), `fictioneer_refresh_collections_schema` (20), `fictioneer_refresh_post_caches` (20), `fictioneer_refresh_post_schema` (20), `fictioneer_refresh_recommendations_schema` (20), `fictioneer_refresh_recommendation_schema` (20), `fictioneer_refresh_stories_schema` (20), `fictioneer_refresh_story_schema` (20), `fictioneer_save_seo_metabox` (10), `fictioneer_save_word_count` (10), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_update_shortcode_relationships` (10), `fictioneer_purge_transients_after_update` (10), `fictioneer_save_story_metaboxes` (10), `fictioneer_save_chapter_metaboxes` (10), `fictioneer_save_extra_metabox` (10), `fictioneer_save_support_links_metabox` (10), `fictioneer_save_collection_metaboxes` (10), `fictioneer_save_recommendation_metaboxes` (10), `fictioneer_save_post_metaboxes` (10), `fictioneer_delete_cached_story_card_after_update` (10), `fictioneer_rebuild_story_data_collection` (999), `fictioneer_post_chapter_to_discord` (99), `fictioneer_bulk_edit_save_patreon` (10), `fictioneer_bulk_edit_save_chapter_fields` (10)
 | `send_headers` | `fictioneer_block_pages_from_indexing` (10)
 | `show_user_profile` | `fictioneer_custom_profile_fields` (20)
 | `shutdown` | `fictioneer_save_story_card_cache` (10), `fictioneer_save_query_result_cache_registry` (10)
 | `switch_theme` | `fictioneer_theme_deactivation` (10)
 | `template_redirect` | `fictioneer_generate_epub` (10), `fictioneer_oauth2_process` (10), `fictioneer_logout` (10), `fictioneer_disable_attachment_pages` (10), `fictioneer_gate_unpublished_content` (10), `fictioneer_serve_sitemap` (10), `fictioneer_redirect_story` (10)
 | `transition_post_status` | `fictioneer_log_story_chapter_status_changes` (10), `fictioneer_chapter_future_to_publish` (10), `fictioneer_post_story_to_discord` (99)
-| `trashed_post` | `fictioneer_refresh_post_caches` (20), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_purge_transients` (10), `fictioneer_remove_chapter_from_story` (10)
-| `untrash_post` | `fictioneer_refresh_post_caches` (20), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_purge_transients` (10)
+| `trashed_post` | `fictioneer_refresh_post_caches` (20), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_purge_transients_after_update` (10), `fictioneer_remove_chapter_from_story` (10)
+| `untrash_post` | `fictioneer_refresh_post_caches` (20), `fictioneer_track_chapter_and_story_updates` (10), `fictioneer_update_modified_date_on_story_for_chapter` (10), `fictioneer_purge_transients_after_update` (10)
 | `update_option_*` | `fictioneer_update_option_disable_extended_chapter_list_meta_queries` (10), `fictioneer_update_option_disable_extended_story_list_meta_queries` (10)
 | `wp_ajax_*` | `fictioneer_ajax_clear_my_checkmarks` (10), `fictioneer_ajax_clear_my_comments` (10), `fictioneer_ajax_clear_my_comment_subscriptions` (10), `fictioneer_ajax_clear_my_follows` (10), `fictioneer_ajax_clear_my_reminders` (10), `fictioneer_ajax_delete_epub` (10), `fictioneer_ajax_delete_my_account` (10), `fictioneer_ajax_delete_my_comment` (10), `fictioneer_ajax_edit_comment` (10), `fictioneer_ajax_get_avatar` (10), `fictioneer_ajax_get_comment_form` (10), `fictioneer_ajax_get_comment_section` (10), `fictioneer_ajax_get_finished_checkmarks_list` (10), `fictioneer_ajax_get_follows_list` (10), `fictioneer_ajax_get_follows_notifications` (10), `fictioneer_ajax_get_reminders_list` (10), `fictioneer_ajax_mark_follows_read` (10), `fictioneer_ajax_moderate_comment` (10), `fictioneer_ajax_report_comment` (10), `fictioneer_ajax_save_bookmarks` (10), `fictioneer_ajax_set_checkmark` (10), `fictioneer_ajax_submit_comment` (10), `fictioneer_ajax_toggle_follow` (10), `fictioneer_ajax_toggle_reminder` (10), `fictioneer_ajax_unset_my_oauth` (10), `fictioneer_ajax_get_user_data` (10), `fictioneer_ajax_get_auth` (10), `fictioneer_ajax_purge_schema` (10), `fictioneer_ajax_purge_all_schemas` (10), `fictioneer_ajax_reset_theme_colors` (10), `fictioneer_ajax_search_posts_to_unlock` (10), `fictioneer_ajax_get_chapter_group_options` (10)
 | `wp_ajax_nopriv_*` | `fictioneer_ajax_get_comment_form` (10), `fictioneer_ajax_get_comment_section` (10), `fictioneer_ajax_submit_comment` (10), `fictioneer_ajax_get_auth` (10)
diff --git a/includes/functions/_customizer-settings.php b/includes/functions/_customizer-settings.php
index 653dcb5d..4e8e0246 100644
--- a/includes/functions/_customizer-settings.php
+++ b/includes/functions/_customizer-settings.php
@@ -14,8 +14,7 @@
 
 function fictioneer_watch_for_customizer_updates() {
   // Transient caches
-  fictioneer_delete_transients_like( 'fictioneer_' );
-  fictioneer_purge_nav_menu_transients();
+  fictioneer_delete_layout_transients();
 
   // Rebuild customize stylesheet
   fictioneer_build_customize_css();
diff --git a/includes/functions/_service-caching.php b/includes/functions/_service-caching.php
index 32704e84..9367789d 100644
--- a/includes/functions/_service-caching.php
+++ b/includes/functions/_service-caching.php
@@ -795,6 +795,20 @@ if ( FICTIONEER_ENABLE_STORY_DATA_META_CACHE ) {
 // PURGE CACHE TRANSIENTS
 // =============================================================================
 
+/**
+ * Purge layout-related Transients
+ *
+ * @since 5.25.0
+ */
+
+function fictioneer_delete_layout_transients() {
+  fictioneer_purge_nav_menu_transients();
+  fictioneer_purge_story_card_cache();
+  fictioneer_delete_transients_like( 'fictioneer_shortcode' );
+  fictioneer_delete_transients_like( 'fictioneer_taxonomy_submenu_' );
+  delete_transient( 'fictioneer_dynamic_scripts_version' );
+}
+
 /**
  * Purge Transients used for caching when posts are updated
  *
@@ -804,7 +818,7 @@ if ( FICTIONEER_ENABLE_STORY_DATA_META_CACHE ) {
  * @param int $post_id  Updated post ID.
  */
 
-function fictioneer_purge_transients( $post_id ) {
+function fictioneer_purge_transients_after_update( $post_id ) {
   // Prevent multi-fire
   if ( fictioneer_multi_save_guard( $post_id ) ) {
     return;
@@ -818,7 +832,7 @@ function fictioneer_purge_transients( $post_id ) {
 }
 
 /**
- * Add or remove actions for `fictioneer_purge_transients`
+ * Add or remove actions for `fictioneer_purge_transients_after_update`
  *
  * @since 5.5.2
  *
@@ -830,11 +844,11 @@ function fictioneer_toggle_transient_purge_hooks( $add = true ) {
 
   if ( $add ) {
     foreach ( $hooks as $hook ) {
-      add_action( $hook, 'fictioneer_purge_transients' );
+      add_action( $hook, 'fictioneer_purge_transients_after_update' );
     }
   } else {
     foreach ( $hooks as $hook ) {
-      remove_action( $hook, 'fictioneer_purge_transients' );
+      remove_action( $hook, 'fictioneer_purge_transients_after_update' );
     }
   }
 }
@@ -842,7 +856,7 @@ function fictioneer_toggle_transient_purge_hooks( $add = true ) {
 fictioneer_toggle_transient_purge_hooks();
 
 /**
- * Purge nav menu Transients on menu updates
+ * Purge nav menu Transients
  *
  * @since 5.6.0
  */
@@ -850,6 +864,8 @@ fictioneer_toggle_transient_purge_hooks();
 function fictioneer_purge_nav_menu_transients() {
   delete_transient( 'fictioneer_main_nav_menu_html' );
   delete_transient( 'fictioneer_footer_menu_html' );
+  delete_transient( 'fictioneer_mobile_nav_menu_html' );
+  fictioneer_delete_transients_like( 'fictioneer_taxonomy_submenu_' );
 }
 add_action( 'wp_update_nav_menu', 'fictioneer_purge_nav_menu_transients' );
 
diff --git a/includes/functions/_setup-theme.php b/includes/functions/_setup-theme.php
index 6ebb1488..5aafeb9b 100644
--- a/includes/functions/_setup-theme.php
+++ b/includes/functions/_setup-theme.php
@@ -237,8 +237,8 @@ add_action( 'after_setup_theme', 'fictioneer_theme_setup' );
  */
 
 function fictioneer_purge_caches_after_update() {
-  // Transients
-  fictioneer_delete_transients_like( 'fictioneer_' );
+  // Transients (fast, assuming this also causes a purge of external object caches)
+  fictioneer_delete_transients_like( 'fictioneer_', true );
 
   // Cache busting string
   fictioneer_regenerate_cache_bust();
diff --git a/includes/functions/settings/_settings_actions.php b/includes/functions/settings/_settings_actions.php
index 2825fa86..4863dfb9 100644
--- a/includes/functions/settings/_settings_actions.php
+++ b/includes/functions/settings/_settings_actions.php
@@ -459,10 +459,6 @@ function fictioneer_purge_theme_caches() {
 
   $wpdb->query( $wpdb->prepare( $sql, 'fictioneer_story_data_collection', 'fictioneer_story_chapter_index_html' ) );
 
-  // Transients
-  fictioneer_purge_nav_menu_transients();
-  fictioneer_delete_transients_like( 'fictioneer_' );
-
   // Delete cached files
   $files = glob( trailingslashit( fictioneer_get_theme_cache_dir( 'purge_theme_caches' ) ) . '*' );
 
@@ -483,6 +479,11 @@ function fictioneer_purge_theme_caches() {
   // Query result cache registry
   delete_option( 'fictioneer_query_cache_registry' );
 
+  // Transients
+  fictioneer_delete_layout_transients();
+  fictioneer_delete_transients_like( 'fictioneer_shortcode' );
+  fictioneer_delete_transients_like( 'fictioneer_', true ); // Fast, but not safe for external object caches
+
   // Log
   fictioneer_log( __( 'Purged theme caches.', 'fictioneer' ) );
 }