From 1954fa738509a4a83ae0f04ca83509149580c5cb Mon Sep 17 00:00:00 2001
From: Jonathan Desrosiers <desrosj@git.wordpress.org>
Date: Tue, 16 Apr 2019 14:55:48 +0000
Subject: [PATCH] Bundled Themes: Use the theme version when enqueuing theme
 specific stylesheets.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For many bundled theme related stylesheets, a version is either not specified, or specified as a hardcoded date string when enqueued. This is problematic when a stylesheet is updated and the version number is not (which has happened several times recently). This change ensures that all bundled theme related stylesheets use the theme’s version as the stylesheet version. This ensures cache busting for theme stylesheets every time a theme is updated and guarantees that users receive any new or updated styles included in the update when visiting the site for the first time after an update.

Props parsmizban, ianbelanger, dswebsme.
Fixes #39997.

git-svn-id: https://develop.svn.wordpress.org/trunk@45213 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-content/themes/twentyeleven/functions.php     |  4 ++--
 src/wp-content/themes/twentyeleven/header.php        |  2 +-
 .../themes/twentyeleven/inc/theme-options.php        |  4 ++--
 src/wp-content/themes/twentyfifteen/functions.php    | 10 +++++-----
 src/wp-content/themes/twentyfourteen/functions.php   |  8 ++++----
 src/wp-content/themes/twentyseventeen/functions.php  | 12 ++++++------
 src/wp-content/themes/twentysixteen/functions.php    | 12 ++++++------
 src/wp-content/themes/twentyten/functions.php        |  4 ++--
 src/wp-content/themes/twentyten/header.php           |  2 +-
 src/wp-content/themes/twentythirteen/functions.php   |  6 +++---
 src/wp-content/themes/twentytwelve/functions.php     |  8 ++++----
 11 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/src/wp-content/themes/twentyeleven/functions.php b/src/wp-content/themes/twentyeleven/functions.php
index b3b1466ef4..675e1badca 100644
--- a/src/wp-content/themes/twentyeleven/functions.php
+++ b/src/wp-content/themes/twentyeleven/functions.php
@@ -294,7 +294,7 @@ endif; // twentyeleven_setup
  */
 function twentyeleven_scripts_styles() {
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentyeleven-block-style', get_template_directory_uri() . '/blocks.css', array(), '20181230' );
+	wp_enqueue_style( 'twentyeleven-block-style', get_template_directory_uri() . '/blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 }
 add_action( 'wp_enqueue_scripts', 'twentyeleven_scripts_styles' );
 
@@ -305,7 +305,7 @@ add_action( 'wp_enqueue_scripts', 'twentyeleven_scripts_styles' );
  */
 function twentyeleven_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentyeleven-block-editor-style', get_template_directory_uri() . '/editor-blocks.css', array(), '20181230' );
+	wp_enqueue_style( 'twentyeleven-block-editor-style', get_template_directory_uri() . '/editor-blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 }
 add_action( 'enqueue_block_editor_assets', 'twentyeleven_block_editor_styles' );
 
diff --git a/src/wp-content/themes/twentyeleven/header.php b/src/wp-content/themes/twentyeleven/header.php
index 39cbe89c11..56143a9e98 100644
--- a/src/wp-content/themes/twentyeleven/header.php
+++ b/src/wp-content/themes/twentyeleven/header.php
@@ -48,7 +48,7 @@ if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
 ?>
 	</title>
 <link rel="profile" href="http://gmpg.org/xfn/11" />
-<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>" />
+<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>?ver=<?php echo esc_attr( wp_get_theme()->get( 'Version' ) ); ?>" />
 <link rel="pingback" href="<?php echo esc_url( get_bloginfo( 'pingback_url' ) ); ?>">
 <!--[if lt IE 9]>
 <script src="<?php echo get_template_directory_uri(); ?>/js/html5.js" type="text/javascript"></script>
diff --git a/src/wp-content/themes/twentyeleven/inc/theme-options.php b/src/wp-content/themes/twentyeleven/inc/theme-options.php
index fb2ff32ad0..89b3338cb0 100644
--- a/src/wp-content/themes/twentyeleven/inc/theme-options.php
+++ b/src/wp-content/themes/twentyeleven/inc/theme-options.php
@@ -17,7 +17,7 @@
  * @param string $hook_suffix An admin page's hook suffix.
  */
 function twentyeleven_admin_enqueue_scripts( $hook_suffix ) {
-	wp_enqueue_style( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options.css', false, '2011-04-28' );
+	wp_enqueue_style( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options.css', false, wp_get_theme()->get( 'Version' ) );
 	wp_enqueue_script( 'twentyeleven-theme-options', get_template_directory_uri() . '/inc/theme-options.js', array( 'farbtastic' ), '2011-06-10' );
 	wp_enqueue_style( 'farbtastic' );
 }
@@ -407,7 +407,7 @@ function twentyeleven_enqueue_color_scheme() {
 	$color_scheme = $options['color_scheme'];
 
 	if ( 'dark' == $color_scheme ) {
-		wp_enqueue_style( 'dark', get_template_directory_uri() . '/colors/dark.css', array(), null );
+		wp_enqueue_style( 'dark', get_template_directory_uri() . '/colors/dark.css', array(), wp_get_theme()->get( 'Version' ) );
 	}
 
 	/**
diff --git a/src/wp-content/themes/twentyfifteen/functions.php b/src/wp-content/themes/twentyfifteen/functions.php
index db6451f0b9..5d51327d91 100644
--- a/src/wp-content/themes/twentyfifteen/functions.php
+++ b/src/wp-content/themes/twentyfifteen/functions.php
@@ -367,17 +367,17 @@ function twentyfifteen_scripts() {
 	wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.2' );
 
 	// Load our main stylesheet.
-	wp_enqueue_style( 'twentyfifteen-style', get_stylesheet_uri() );
+	wp_enqueue_style( 'twentyfifteen-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentyfifteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentyfifteen-style' ), '20181230' );
+	wp_enqueue_style( 'twentyfifteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentyfifteen-style' ), wp_get_theme()->get( 'Version' ) );
 
 	// Load the Internet Explorer specific stylesheet.
-	wp_enqueue_style( 'twentyfifteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfifteen-style' ), '20141010' );
+	wp_enqueue_style( 'twentyfifteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfifteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentyfifteen-ie', 'conditional', 'lt IE 9' );
 
 	// Load the Internet Explorer 7 specific stylesheet.
-	wp_enqueue_style( 'twentyfifteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentyfifteen-style' ), '20141010' );
+	wp_enqueue_style( 'twentyfifteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentyfifteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentyfifteen-ie7', 'conditional', 'lt IE 8' );
 
 	wp_enqueue_script( 'twentyfifteen-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20141010', true );
@@ -409,7 +409,7 @@ add_action( 'wp_enqueue_scripts', 'twentyfifteen_scripts' );
  */
 function twentyfifteen_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentyfifteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), '20181230' );
+	wp_enqueue_style( 'twentyfifteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 	// Add custom fonts.
 	wp_enqueue_style( 'twentyfifteen-fonts', twentyfifteen_fonts_url(), array(), null );
 }
diff --git a/src/wp-content/themes/twentyfourteen/functions.php b/src/wp-content/themes/twentyfourteen/functions.php
index c017dac644..59906a5fe3 100644
--- a/src/wp-content/themes/twentyfourteen/functions.php
+++ b/src/wp-content/themes/twentyfourteen/functions.php
@@ -316,13 +316,13 @@ function twentyfourteen_scripts() {
 	wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.0.3' );
 
 	// Load our main stylesheet.
-	wp_enqueue_style( 'twentyfourteen-style', get_stylesheet_uri() );
+	wp_enqueue_style( 'twentyfourteen-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentyfourteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentyfourteen-style' ), '20181230' );
+	wp_enqueue_style( 'twentyfourteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentyfourteen-style' ), wp_get_theme()->get( 'Version' ) );
 
 	// Load the Internet Explorer specific stylesheet.
-	wp_enqueue_style( 'twentyfourteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfourteen-style' ), '20131205' );
+	wp_enqueue_style( 'twentyfourteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfourteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentyfourteen-ie', 'conditional', 'lt IE 9' );
 
 	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
@@ -395,7 +395,7 @@ add_filter( 'wp_resource_hints', 'twentyfourteen_resource_hints', 10, 2 );
  */
 function twentyfourteen_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentyfourteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), '20181230' );
+	wp_enqueue_style( 'twentyfourteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 	// Add custom fonts.
 	wp_enqueue_style( 'twentyfourteen-fonts', twentyfourteen_font_url(), array(), null );
 }
diff --git a/src/wp-content/themes/twentyseventeen/functions.php b/src/wp-content/themes/twentyseventeen/functions.php
index a8f10773f9..727ccd6a55 100644
--- a/src/wp-content/themes/twentyseventeen/functions.php
+++ b/src/wp-content/themes/twentyseventeen/functions.php
@@ -446,24 +446,24 @@ function twentyseventeen_scripts() {
 	wp_enqueue_style( 'twentyseventeen-fonts', twentyseventeen_fonts_url(), array(), null );
 
 	// Theme stylesheet.
-	wp_enqueue_style( 'twentyseventeen-style', get_stylesheet_uri() );
+	wp_enqueue_style( 'twentyseventeen-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentyseventeen-block-style', get_theme_file_uri( '/assets/css/blocks.css' ), array( 'twentyseventeen-style' ), '1.1' );
+	wp_enqueue_style( 'twentyseventeen-block-style', get_theme_file_uri( '/assets/css/blocks.css' ), array( 'twentyseventeen-style' ), wp_get_theme()->get( 'Version' ) );
 
 	// Load the dark colorscheme.
 	if ( 'dark' === get_theme_mod( 'colorscheme', 'light' ) || is_customize_preview() ) {
-		wp_enqueue_style( 'twentyseventeen-colors-dark', get_theme_file_uri( '/assets/css/colors-dark.css' ), array( 'twentyseventeen-style' ), '1.0' );
+		wp_enqueue_style( 'twentyseventeen-colors-dark', get_theme_file_uri( '/assets/css/colors-dark.css' ), array( 'twentyseventeen-style' ), wp_get_theme()->get( 'Version' ) );
 	}
 
 	// Load the Internet Explorer 9 specific stylesheet, to fix display issues in the Customizer.
 	if ( is_customize_preview() ) {
-		wp_enqueue_style( 'twentyseventeen-ie9', get_theme_file_uri( '/assets/css/ie9.css' ), array( 'twentyseventeen-style' ), '1.0' );
+		wp_enqueue_style( 'twentyseventeen-ie9', get_theme_file_uri( '/assets/css/ie9.css' ), array( 'twentyseventeen-style' ), wp_get_theme()->get( 'Version' ) );
 		wp_style_add_data( 'twentyseventeen-ie9', 'conditional', 'IE 9' );
 	}
 
 	// Load the Internet Explorer 8 specific stylesheet.
-	wp_enqueue_style( 'twentyseventeen-ie8', get_theme_file_uri( '/assets/css/ie8.css' ), array( 'twentyseventeen-style' ), '1.0' );
+	wp_enqueue_style( 'twentyseventeen-ie8', get_theme_file_uri( '/assets/css/ie8.css' ), array( 'twentyseventeen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentyseventeen-ie8', 'conditional', 'lt IE 9' );
 
 	// Load the html5 shiv.
@@ -507,7 +507,7 @@ add_action( 'wp_enqueue_scripts', 'twentyseventeen_scripts' );
  */
 function twentyseventeen_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentyseventeen-block-editor-style', get_theme_file_uri( '/assets/css/editor-blocks.css' ), array(), '1.1' );
+	wp_enqueue_style( 'twentyseventeen-block-editor-style', get_theme_file_uri( '/assets/css/editor-blocks.css' ), array(), wp_get_theme()->get( 'Version' ) );
 	// Add custom fonts.
 	wp_enqueue_style( 'twentyseventeen-fonts', twentyseventeen_fonts_url(), array(), null );
 }
diff --git a/src/wp-content/themes/twentysixteen/functions.php b/src/wp-content/themes/twentysixteen/functions.php
index 68e4a5ef03..deedf95d66 100644
--- a/src/wp-content/themes/twentysixteen/functions.php
+++ b/src/wp-content/themes/twentysixteen/functions.php
@@ -367,21 +367,21 @@ function twentysixteen_scripts() {
 	wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.4.1' );
 
 	// Theme stylesheet.
-	wp_enqueue_style( 'twentysixteen-style', get_stylesheet_uri() );
+	wp_enqueue_style( 'twentysixteen-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentysixteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentysixteen-style' ), '20181230' );
+	wp_enqueue_style( 'twentysixteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentysixteen-style' ), wp_get_theme()->get( 'Version' ) );
 
 	// Load the Internet Explorer specific stylesheet.
-	wp_enqueue_style( 'twentysixteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentysixteen-style' ), '20160816' );
+	wp_enqueue_style( 'twentysixteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentysixteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentysixteen-ie', 'conditional', 'lt IE 10' );
 
 	// Load the Internet Explorer 8 specific stylesheet.
-	wp_enqueue_style( 'twentysixteen-ie8', get_template_directory_uri() . '/css/ie8.css', array( 'twentysixteen-style' ), '20160816' );
+	wp_enqueue_style( 'twentysixteen-ie8', get_template_directory_uri() . '/css/ie8.css', array( 'twentysixteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentysixteen-ie8', 'conditional', 'lt IE 9' );
 
 	// Load the Internet Explorer 7 specific stylesheet.
-	wp_enqueue_style( 'twentysixteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentysixteen-style' ), '20160816' );
+	wp_enqueue_style( 'twentysixteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentysixteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentysixteen-ie7', 'conditional', 'lt IE 8' );
 
 	// Load the html5 shiv.
@@ -418,7 +418,7 @@ add_action( 'wp_enqueue_scripts', 'twentysixteen_scripts' );
  */
 function twentysixteen_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentysixteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), '20181230' );
+	wp_enqueue_style( 'twentysixteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 	// Add custom fonts.
 	wp_enqueue_style( 'twentysixteen-fonts', twentysixteen_fonts_url(), array(), null );
 }
diff --git a/src/wp-content/themes/twentyten/functions.php b/src/wp-content/themes/twentyten/functions.php
index a3617c6a1a..ea6654913b 100644
--- a/src/wp-content/themes/twentyten/functions.php
+++ b/src/wp-content/themes/twentyten/functions.php
@@ -703,7 +703,7 @@ add_filter( 'widget_tag_cloud_args', 'twentyten_widget_tag_cloud_args' );
  */
 function twentyten_scripts_styles() {
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentyten-block-style', get_template_directory_uri() . '/blocks.css', array(), '20181018' );
+	wp_enqueue_style( 'twentyten-block-style', get_template_directory_uri() . '/blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 }
 add_action( 'wp_enqueue_scripts', 'twentyten_scripts_styles' );
 
@@ -714,7 +714,7 @@ add_action( 'wp_enqueue_scripts', 'twentyten_scripts_styles' );
  */
 function twentyten_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentyten-block-editor-style', get_template_directory_uri() . '/editor-blocks.css' );
+	wp_enqueue_style( 'twentyten-block-editor-style', get_template_directory_uri() . '/editor-blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 }
 add_action( 'enqueue_block_editor_assets', 'twentyten_block_editor_styles' );
 
diff --git a/src/wp-content/themes/twentyten/header.php b/src/wp-content/themes/twentyten/header.php
index 23a186340a..17bdbda024 100644
--- a/src/wp-content/themes/twentyten/header.php
+++ b/src/wp-content/themes/twentyten/header.php
@@ -38,7 +38,7 @@ if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
 ?>
 	</title>
 <link rel="profile" href="http://gmpg.org/xfn/11" />
-<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>" />
+<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>?ver=<?php echo esc_attr( wp_get_theme()->get( 'Version' ) ); ?>" />
 <link rel="pingback" href="<?php echo esc_url( get_bloginfo( 'pingback_url' ) ); ?>">
 <?php
 	/*
diff --git a/src/wp-content/themes/twentythirteen/functions.php b/src/wp-content/themes/twentythirteen/functions.php
index f10e2697f4..d7c90af5c9 100644
--- a/src/wp-content/themes/twentythirteen/functions.php
+++ b/src/wp-content/themes/twentythirteen/functions.php
@@ -281,13 +281,13 @@ function twentythirteen_scripts_styles() {
 	wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.0.3' );
 
 	// Loads our main stylesheet.
-	wp_enqueue_style( 'twentythirteen-style', get_stylesheet_uri(), array(), '2013-07-18' );
+	wp_enqueue_style( 'twentythirteen-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentythirteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentythirteen-style' ), '2018-12-30' );
+	wp_enqueue_style( 'twentythirteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentythirteen-style' ), wp_get_theme()->get( 'Version' ) );
 
 	// Loads the Internet Explorer specific stylesheet.
-	wp_enqueue_style( 'twentythirteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentythirteen-style' ), '2013-07-18' );
+	wp_enqueue_style( 'twentythirteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentythirteen-style' ), wp_get_theme()->get( 'Version' ) );
 	wp_style_add_data( 'twentythirteen-ie', 'conditional', 'lt IE 9' );
 }
 add_action( 'wp_enqueue_scripts', 'twentythirteen_scripts_styles' );
diff --git a/src/wp-content/themes/twentytwelve/functions.php b/src/wp-content/themes/twentytwelve/functions.php
index 22c212edbe..27681d2209 100644
--- a/src/wp-content/themes/twentytwelve/functions.php
+++ b/src/wp-content/themes/twentytwelve/functions.php
@@ -199,13 +199,13 @@ function twentytwelve_scripts_styles() {
 	}
 
 	// Loads our main stylesheet.
-	wp_enqueue_style( 'twentytwelve-style', get_stylesheet_uri() );
+	wp_enqueue_style( 'twentytwelve-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	// Theme block stylesheet.
-	wp_enqueue_style( 'twentytwelve-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentytwelve-style' ), '20181230' );
+	wp_enqueue_style( 'twentytwelve-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentytwelve-style' ), wp_get_theme()->get( 'Version' ) );
 
 	// Loads the Internet Explorer specific stylesheet.
-	wp_enqueue_style( 'twentytwelve-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentytwelve-style' ), '20121010' );
+	wp_enqueue_style( 'twentytwelve-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentytwelve-style' ), wp_get_theme()->get( 'Version' ) );
 	$wp_styles->add_data( 'twentytwelve-ie', 'conditional', 'lt IE 9' );
 }
 add_action( 'wp_enqueue_scripts', 'twentytwelve_scripts_styles' );
@@ -217,7 +217,7 @@ add_action( 'wp_enqueue_scripts', 'twentytwelve_scripts_styles' );
  */
 function twentytwelve_block_editor_styles() {
 	// Block styles.
-	wp_enqueue_style( 'twentytwelve-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), '20181230' );
+	wp_enqueue_style( 'twentytwelve-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), wp_get_theme()->get( 'Version' ) );
 	// Add custom fonts.
 	wp_enqueue_style( 'twentytwelve-fonts', twentytwelve_get_font_url(), array(), null );
 }