diff -r be944660c56a -r 3d72ae0968f4 wp/wp-admin/includes/class-wp-media-list-table.php
--- a/wp/wp-admin/includes/class-wp-media-list-table.php	Wed Sep 21 18:19:35 2022 +0200
+++ b/wp/wp-admin/includes/class-wp-media-list-table.php	Tue Sep 27 16:37:53 2022 +0200
@@ -78,12 +78,16 @@
 		 */
 		$not_in = array();
 
-		foreach ( _get_cron_array() as $cron ) {
-			if ( isset( $cron['upgrader_scheduled_cleanup'] ) ) {
-				$details = reset( $cron['upgrader_scheduled_cleanup'] );
+		$crons = _get_cron_array();
 
-				if ( ! empty( $details['args'][0] ) ) {
-					$not_in[] = (int) $details['args'][0];
+		if ( is_array( $crons ) ) {
+			foreach ( $crons as $cron ) {
+				if ( isset( $cron['upgrader_scheduled_cleanup'] ) ) {
+					$details = reset( $cron['upgrader_scheduled_cleanup'] );
+
+					if ( ! empty( $details['args'][0] ) ) {
+						$not_in[] = (int) $details['args'][0];
+					}
 				}
 			}
 		}
@@ -147,7 +151,7 @@
 			);
 		}
 
-		$type_links['detached'] = '<option value="detached"' . ( $this->detached ? ' selected="selected"' : '' ) . '>' . __( 'Unattached' ) . '</option>';
+		$type_links['detached'] = '<option value="detached"' . ( $this->detached ? ' selected="selected"' : '' ) . '>' . _x( 'Unattached', 'media items' ) . '</option>';
 
 		$type_links['mine'] = sprintf(
 			'<option value="mine"%s>%s</option>',
@@ -383,10 +387,14 @@
 	 * Handles the checkbox column output.
 	 *
 	 * @since 4.3.0
+	 * @since 5.9.0 Renamed `$post` to `$item` to match parent class for PHP 8 named parameter support.
 	 *
-	 * @param WP_Post $post The current WP_Post object.
+	 * @param WP_Post $item The current WP_Post object.
 	 */
-	public function column_cb( $post ) {
+	public function column_cb( $item ) {
+		// Restores the more descriptive, specific name for use within this method.
+		$post = $item;
+
 		if ( current_user_can( 'edit_post', $post->ID ) ) {
 			?>
 			<label class="screen-reader-text" for="cb-select-<?php echo $post->ID; ?>">
@@ -500,7 +508,16 @@
 			}
 		}
 
-		echo $h_time;
+		/**
+		 * Filters the published time of an attachment displayed in the Media list table.
+		 *
+		 * @since 6.0.0
+		 *
+		 * @param string  $h_time      The published time.
+		 * @param WP_Post $post        Attachment object.
+		 * @param string  $column_name The column name.
+		 */
+		echo apply_filters( 'media_date_column_time', $h_time, $post, 'date' );
 	}
 
 	/**
@@ -590,11 +607,15 @@
 	 * Handles output for the default column.
 	 *
 	 * @since 4.3.0
+	 * @since 5.9.0 Renamed `$post` to `$item` to match parent class for PHP 8 named parameter support.
 	 *
-	 * @param WP_Post $post        The current WP_Post object.
+	 * @param WP_Post $item        The current WP_Post object.
 	 * @param string  $column_name Current column name.
 	 */
-	public function column_default( $post, $column_name ) {
+	public function column_default( $item, $column_name ) {
+		// Restores the more descriptive, specific name for use within this method.
+		$post = $item;
+
 		if ( 'categories' === $column_name ) {
 			$taxonomy = 'category';
 		} elseif ( 'tags' === $column_name ) {
@@ -621,8 +642,7 @@
 						esc_html( sanitize_term_field( 'name', $t->name, $t->term_id, $taxonomy, 'display' ) )
 					);
 				}
-				/* translators: Used between list items, there is a space after the comma. */
-				echo implode( __( ', ' ), $out );
+				echo implode( wp_get_list_item_separator(), $out );
 			} else {
 				echo '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">' . get_taxonomy( $taxonomy )->labels->no_terms . '</span>';
 			}
@@ -794,6 +814,15 @@
 					esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $att_title ) ),
 					__( 'View' )
 				);
+
+				$actions['copy'] = sprintf(
+					'<span class="copy-to-clipboard-container"><button type="button" class="button-link copy-attachment-url media-library" data-clipboard-text="%s" aria-label="%s">%s</button><span class="success hidden" aria-hidden="true">%s</span></span>',
+					esc_url( wp_get_attachment_url( $post->ID ) ),
+					/* translators: %s: Attachment title. */
+					esc_attr( sprintf( __( 'Copy &#8220;%s&#8221; URL to clipboard' ), $att_title ) ),
+					__( 'Copy URL to clipboard' ),
+					__( 'Copied!' )
+				);
 			}
 		}
 
@@ -815,20 +844,25 @@
 	 * Generates and displays row action links.
 	 *
 	 * @since 4.3.0
+	 * @since 5.9.0 Renamed `$post` to `$item` to match parent class for PHP 8 named parameter support.
 	 *
-	 * @param WP_Post $post        Attachment being acted upon.
+	 * @param WP_Post $item        Attachment being acted upon.
 	 * @param string  $column_name Current column name.
 	 * @param string  $primary     Primary column name.
 	 * @return string Row actions output for media attachments, or an empty string
 	 *                if the current column is not the primary column.
 	 */
-	protected function handle_row_actions( $post, $column_name, $primary ) {
+	protected function handle_row_actions( $item, $column_name, $primary ) {
 		if ( $primary !== $column_name ) {
 			return '';
 		}
 
 		$att_title = _draft_or_post_title();
+		$actions   = $this->_get_row_actions(
+			$item, // WP_Post object for an attachment.
+			$att_title
+		);
 
-		return $this->row_actions( $this->_get_row_actions( $post, $att_title ) );
+		return $this->row_actions( $actions );
 	}
 }