diff --git a/README.md b/README.md
index 5da1dbc38f76175f01a8709212fc0d1786ff1287..7253f19d8b417f936a923352f56a29ea4764bf39 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 **Tags:** revision, revisions, admin  
 **Requires at least:** 3.6  
 **Tested up to:** 5.7  
-**Stable tag:** 1.3  
+**Stable tag:** 1.4  
 **License:** GPLv2 or later  
 **License URI:** http://www.gnu.org/licenses/gpl-2.0.html  
 
@@ -33,8 +33,14 @@ Thanks to Maria Ramos at [WebHostingHub](http://www.webhostinghub.com/), the plu
 ### Where do I change the plugin's settings? ###
 Navigate to **Settings > Writing** in your WordPress Dashboard, and look for the **WP Revisions Control** section.
 
+### How do I turn off the Gutenberg component added in version 1.4? ###
+Navigate to **Settings > Writing** in your WordPress Dashboard, and look for the **Disable Gutenberg sidebar component** in the **WP Revisions Control** section.
+
 ## Changelog ##
 
+### 1.4 ###
+* Introduce native Gutenberg sidebar component for supported post types, along with a setting to revert to the previous metabox.
+
 ### 1.3 ###
 * Add bulk actions to purge excess or all revisions.
 * Introduce unit tests.
diff --git a/languages/wp-revisions-control.pot b/languages/wp-revisions-control.pot
index 05ac70526c57e9ae7787a2c1c5e0f90eb35bc37d..4a832c4b927487ccd7fba1a1099a14f055d7138b 100644
--- a/languages/wp-revisions-control.pot
+++ b/languages/wp-revisions-control.pot
@@ -2,10 +2,10 @@
 # This file is distributed under the same license as the WP Revisions Control package.
 msgid ""
 msgstr ""
-"Project-Id-Version: WP Revisions Control 1.3\n"
+"Project-Id-Version: WP Revisions Control 1.4\n"
 "Report-Msgid-Bugs-To: "
 "https://wordpress.org/support/plugin/wp-revisions-control\n"
-"POT-Creation-Date: 2021-03-28 06:19:35+00:00\n"
+"POT-Creation-Date: 2021-03-28 07:30:21+00:00\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -45,17 +45,21 @@ msgstr ""
 msgid "WP Revisions Control encountered an unspecified error."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:170
+#: inc/class-wp-revisions-control.php:166
+msgid "Gutenberg"
+msgstr ""
+
+#: inc/class-wp-revisions-control.php:195
 msgid ""
 "Set the number of revisions to save for each post type listed. To retain "
 "all revisions for a given post type, leave the field empty."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:171
+#: inc/class-wp-revisions-control.php:196
 msgid "If a post type isn't listed, revisions are not enabled for that post type."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:182
+#: inc/class-wp-revisions-control.php:207
 #. translators: 1. Filter tag.
 msgid ""
 "A local change is causing this plugin's functionality to run at a priority "
@@ -63,64 +67,74 @@ msgid ""
 "please unhook any functions from the %1$s filter."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:307
+#: inc/class-wp-revisions-control.php:249
+msgid "Disable Gutenberg sidebar component"
+msgstr ""
+
+#: inc/class-wp-revisions-control.php:258
+msgid ""
+"If checked, the plugin's previous interface will appear below the post "
+"content in Gutenberg, rather than appearing in the sidebar."
+msgstr ""
+
+#: inc/class-wp-revisions-control.php:383
 msgid "Revisions"
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:340
+#: inc/class-wp-revisions-control.php:416
 msgid "Processing…"
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:341
+#: inc/class-wp-revisions-control.php:417
 msgid "Are you sure you want to remove revisions from this post?"
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:342
+#: inc/class-wp-revisions-control.php:418
 msgid "Autosave"
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:343
+#: inc/class-wp-revisions-control.php:419
 msgid "There are no revisions to remove."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:344
+#: inc/class-wp-revisions-control.php:420
 msgid "An error occurred. Please refresh the page and try again."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:364
+#: inc/class-wp-revisions-control.php:440
 msgid "Purge these revisions"
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:370
+#: inc/class-wp-revisions-control.php:446
 #. translators: 1. Text input field.
 msgid ""
 "Limit this post to %1$s revisions. Leave this field blank for default "
 "behavior."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:395
+#: inc/class-wp-revisions-control.php:471
 msgid "No post ID was provided. Please refresh the page and try again."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:397
+#: inc/class-wp-revisions-control.php:473
 msgid "Invalid request. Please refresh the page and try again."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:399
+#: inc/class-wp-revisions-control.php:475
 msgid "You are not allowed to edit this post."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:431
+#: inc/class-wp-revisions-control.php:507
 #. translators: 1. Number of removed revisions, already formatted for locale.
 msgid "Removed %1$s revisions associated with this post."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:457
-#: inc/class-wp-revisions-control.php:469
+#: inc/class-wp-revisions-control.php:533
+#: inc/class-wp-revisions-control.php:545
 msgid "No revisions to remove."
 msgstr ""
 
-#: inc/class-wp-revisions-control.php:546
+#: inc/class-wp-revisions-control.php:622
 msgid "Number of revisions to retain."
 msgstr ""
 
diff --git a/readme.txt b/readme.txt
index 8148a2708f39d205738afec56ef0f5a07ae6f751..22de7015476f5e65550cad995e92a04e0b1e562a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://ethitter.com/donate/
 Tags: revision, revisions, admin
 Requires at least: 3.6
 Tested up to: 5.7
-Stable tag: 1.3
+Stable tag: 1.4
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -33,8 +33,14 @@ Thanks to Maria Ramos at [WebHostingHub](http://www.webhostinghub.com/), the plu
 = Where do I change the plugin's settings? =
 Navigate to **Settings > Writing** in your WordPress Dashboard, and look for the **WP Revisions Control** section.
 
+= How do I turn off the Gutenberg component added in version 1.4? =
+Navigate to **Settings > Writing** in your WordPress Dashboard, and look for the **Disable Gutenberg sidebar component** in the **WP Revisions Control** section.
+
 == Changelog ==
 
+= 1.4 =
+* Introduce native Gutenberg sidebar component for supported post types, along with a setting to revert to the previous metabox.
+
 = 1.3 =
 * Add bulk actions to purge excess or all revisions.
 * Introduce unit tests.
diff --git a/wp-revisions-control.php b/wp-revisions-control.php
index 0bf1b26e5805c169f0c8325dde2a9ca10d19c0b1..c8303796eadece897ae21caeb6d20178efb83833 100644
--- a/wp-revisions-control.php
+++ b/wp-revisions-control.php
@@ -10,7 +10,7 @@
  * Plugin URI: https://ethitter.com/plugins/wp-revisions-control/
  * Description: Control how many revisions are stored for each post type
  * Author: Erick Hitter
- * Version: 1.3
+ * Version: 1.4
  * Author URI: https://ethitter.com/
  * Text Domain: wp_revisions_control
  * Domain Path: /languages/