diff --git a/.changelogs/3199.yml b/.changelogs/3199.yml
new file mode 100644
index 0000000000..99aa993961
--- /dev/null
+++ b/.changelogs/3199.yml
@@ -0,0 +1,3 @@
+significance: patch
+type: changed
+entry: "Replaced deprecated `get_terms()` two-argument string form (e.g. `'hide_empty=0'`, removed in WP 4.5.0) with the modern single-argument array form in the course options meta box. Adjusted the `traverse_and_serialize_blocks()` reference to be conditional on WordPress 6.4.0+ via a `phpcs:ignore` annotation while preserving the existing `function_exists()` fallback to `_inject_theme_attribute_in_block_template_content()` for older WordPress versions."
diff --git a/includes/admin/post-types/meta-boxes/class.llms.meta.box.course.options.php b/includes/admin/post-types/meta-boxes/class.llms.meta.box.course.options.php
index 5b537ef8db..8960908353 100644
--- a/includes/admin/post-types/meta-boxes/class.llms.meta.box.course.options.php
+++ b/includes/admin/post-types/meta-boxes/class.llms.meta.box.course.options.php
@@ -53,7 +53,7 @@ public function get_fields() {
 
 		$course = new LLMS_Course( $this->post );
 
-		$course_tracks_options = get_terms( 'course_track', 'hide_empty=0' );
+		$course_tracks_options = get_terms( array( 'taxonomy' => 'course_track', 'hide_empty' => false ) );
 		$course_tracks         = array();
 		foreach ( (array) $course_tracks_options as $term ) {
 			$course_tracks[] = array(
@@ -63,7 +63,7 @@ public function get_fields() {
 		}
 
 		// Setup course difficulty select options.
-		$difficulty_terms   = get_terms( 'course_difficulty', 'hide_empty=0' );
+		$difficulty_terms   = get_terms( array( 'taxonomy' => 'course_difficulty', 'hide_empty' => false ) );
 		$difficulty_options = array();
 		foreach ( $difficulty_terms as $term ) {
 			$difficulty_options[] = array(
diff --git a/includes/class-llms-block-templates.php b/includes/class-llms-block-templates.php
index 4e595fa6ef..82c6301aa4 100644
--- a/includes/class-llms-block-templates.php
+++ b/includes/class-llms-block-templates.php
@@ -373,6 +373,7 @@ private function build_template_result_from_file( $template_file, $template_slug
 		$template                 = new WP_Block_Template();
 		$template->id             = $theme ? $theme . '//' . $template_slug : $namespace . '//' . $template_slug;
 		$template->theme          = $theme ? $theme : $namespace;
+		// phpcs:ignore WordPress.WP.RequiresWP -- Fallback to deprecated _inject_theme_attribute_in_block_template_content() handled below for WP < 6.4.0.
 		$template->content        = function_exists( 'traverse_and_serialize_blocks' ) ?
 			traverse_and_serialize_blocks( parse_blocks( $template_content ), '_inject_theme_attribute_in_template_part_block' ) :
 			_inject_theme_attribute_in_block_template_content( $template_content );