diff --git a/README.txt b/README.txt
index b50104c..f1f3353 100644
--- a/README.txt
+++ b/README.txt
@@ -1,8 +1,8 @@
 === Plugin Name ===
 Contributors: alexkingorg, crowdfavorite
 Tags: content, timeline, display, presentation, story, storyline, context
-Requires at least: 3.5
-Tested up to: 3.5.1
+Requires at least: 4.4.0
+Tested up to: 4.5.1
 Stable tag: 1.0b1
 License: GPLv2
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
diff --git a/threads.php b/threads.php
index 3945e6f..57c2093 100644
--- a/threads.php
+++ b/threads.php
@@ -135,12 +135,16 @@ function cfth_thread_notice($posts, $query) {
 
 function cfth_timeline_posts($term_id) {
 	$term = get_term_by('id', $term_id, 'threads');
+	if ( function_exists( 'get_term_meta' ) ) {
+		$term_meta = get_term_meta( $term_id, 'threads_meta', true );
+	}
+	$order = isset( $term_meta['order_term_meta'] ) ? $term_meta['order_term_meta'] : 'ASC';
 	if ($term) {
 		$query_params = apply_filters('threads_timeline_posts_query', array(
 			'posts_per_page' => -1,
 			'taxonomy' => 'threads',
 			'term' => $term->slug,
-			'order' => 'ASC',
+			'order' => $order,
 		));
 		$query = new WP_Query($query_params);
 		return $query->posts;
@@ -149,6 +153,11 @@ function cfth_timeline_posts($term_id) {
 }
 
 function cfth_timeline_content($term_id) {
+	$term = get_term_by('id', $term_id, 'threads');
+	if ( function_exists( 'get_term_meta' ) ) {
+		$term_meta = get_term_meta( $term_id, 'threads_meta', true );
+	}
+	$order = isset( $term_meta['order_term_meta'] ) ? $term_meta['order_term_meta'] : 'ASC';
 	$posts = cfth_timeline_posts($term_id);
 	if (!count($posts)) {
 		return array();
@@ -170,7 +179,14 @@ function cfth_timeline_content($term_id) {
 		if ($prev) {
 			$prev_timestamp = strtotime($prev->post_date_gmt);
 			$this_timestamp = strtotime($_post->post_date_gmt);
-			$prev->threads_data['time_offset'] = $this_timestamp - $prev_timestamp;
+
+			if( isset( $term_meta['order_term_meta'] ) && 'DESC' === $term_meta['order_term_meta'] ) {
+				// offset calculation if post order selected as DESC.
+				$prev->threads_data['time_offset'] = $prev_timestamp - $this_timestamp;
+			} else {
+				// offset calculation if post order selected as ASC.
+				$prev->threads_data['time_offset'] = $this_timestamp - $prev_timestamp;
+			}
 		}
 		$prev = $_post;
 	}
@@ -375,3 +391,66 @@ function cfth_timeline_css() {
 <?php
 }
 
+/**
+ * Meta field markup for add thread page.
+ *
+ * @since 1.0b1
+ */
+function cfth_taxonomy_add_new_meta_field() {
+	?>
+	<div class="form-field">
+		<label for="term_meta[order_term_meta]"><?php _e( 'Post order', 'threads' ); ?></label>
+			<select name="term_meta[order_term_meta]" id="term_meta[order_term_meta]">
+				<option value="ASC"><?php esc_html_e( 'Oldest to Newest (ASC)', 'threads' ); ?></option>
+				<option value="DESC"><?php esc_html_e( 'Newest to Oldest (DESC)', 'threads' ); ?></option>
+			</select>
+		<p class="description"><?php esc_html_e( 'Sort threaded posts with newest first (DESC), or oldest first (ASC).','threads' ); ?></p>
+	</div>
+<?php
+}
+
+add_action( 'threads_add_form_fields', 'cfth_taxonomy_add_new_meta_field' );
+
+/**
+ * Meta field markup for edit thread page.
+ *
+ * @since 1.0b1
+ */
+function cfth_taxonomy_edit_meta_field( $term ) {
+	if ( function_exists( 'get_term_meta' ) ) {
+		$term_meta = get_term_meta( $term->term_id, 'threads_meta', true );
+	}
+	?>
+
+	<tr class="form-field">
+		<th scope="row" valign="top"><label for="term_meta[order_term_meta]"><?php _e( 'Post order', 'threads' ); ?></label></th>
+		<td>
+			<select name="term_meta[order_term_meta]" id="term_meta[order_term_meta]">
+				<option value="ASC" <?php selected( $term_meta['order_term_meta'], 'ASC' ); ?> ><?php esc_html_e( 'Oldest to Newest (ASC)', 'threads' ); ?></option>
+				<option value="DESC" <?php selected( $term_meta['order_term_meta'], 'DESC' ); ?> ><?php esc_html_e( 'Newest to Oldest (DESC)', 'threads' ); ?></option>
+			</select>
+			<p class="description"><?php esc_html_e( 'Sort threaded posts with newest first (DESC), or oldest first (ASC).','threads' ); ?></p>
+		</td>
+	</tr>
+	<?php
+}
+
+add_action( 'threads_edit_form_fields', 'cfth_taxonomy_edit_meta_field' );
+
+/**
+ * Save meta field for thread taxonomy.
+ *
+ * @since 1.0b1
+ */
+function cfth_save_threads_custom_meta( $term_id ) {
+	if ( isset( $_POST['term_meta'] ) ) {
+		$term_meta = array_map( 'esc_attr', $_POST['term_meta'] );
+		if ( function_exists( 'update_term_meta' ) ) {
+			update_term_meta( $term_id, 'threads_meta', $term_meta );
+		}
+	}
+}
+
+add_action( 'edited_threads', 'cfth_save_threads_custom_meta' );
+add_action( 'create_threads', 'cfth_save_threads_custom_meta' );
+