diff --git a/README.md b/README.md
index 58b531e..08f7c2e 100644
--- a/README.md
+++ b/README.md
@@ -29,8 +29,7 @@ This section describes how to install the plugin and get started using it.
 3. Navigate to **Settings** click **Mailchimp Setup**.
 4. Enter your Mailchimp API Key and let the plugin verify it.
 5. Select the list where you want to send new Mailchimp subscribers.
-6. Optional: turn **MonkeyRewards** on or off.
-7. Optional: Turn **Merge Fields** and **Groups** on or off. Navigate to **Appearance**, and click **Widgets**. Drag the Mailchimp Widget into one of your Widget Areas.
+6. Optional: Turn **Merge Fields** and **Groups** on or off. Navigate to **Appearance**, and click **Widgets**. Drag the Mailchimp Widget into one of your Widget Areas.
 
 ![Selecting your Mailchimp list](https://github.com/mailchimp/wordpress/blob/develop/.wordpress-org/screenshot-2.jpg?raw=true)
 
diff --git a/mailchimp.php b/mailchimp.php
index bd93ae1..0b2b53c 100644
--- a/mailchimp.php
+++ b/mailchimp.php
@@ -34,7 +34,7 @@
  */
 
 // Version constant for easy CSS refreshes
-define( 'MCSF_VER', '1.5.8' );
+define( 'MCSF_VER', '1.6.0' );
 
 // What's our permission (capability) threshold
 define( 'MCSF_CAP_THRESHOLD', 'manage_options' );
@@ -54,6 +54,9 @@
 // includes the backwards compatibility functions
 require_once 'mailchimp_compat.php';
 
+// Upgrade routines.
+require_once 'mailchimp_upgrade.php';
+
 /**
  * Do the following plugin setup steps here
  *
@@ -421,7 +424,6 @@ function mailchimp_sf_delete_setup() {
 		'mc_sopresto_user',
 		'mc_sopresto_public_key',
 		'mc_sopresto_secret_key',
-		'mc_rewards',
 		'mc_use_javascript',
 		'mc_use_datepicker',
 		'mc_use_unsub_link',
@@ -508,15 +510,6 @@ function mailchimp_sf_set_form_defaults( $list_name = '' ) {
 function mailchimp_sf_save_general_form_settings() {
 
 	// IF NOT DEV MODE
-	if ( isset( $_POST['mc_rewards'] ) ) {
-		update_option( 'mc_rewards', 'on' );
-		$msg = '<p class="success_msg">' . __( 'Monkey Rewards turned On!', 'mailchimp_i18n' ) . '</p>';
-		mailchimp_sf_global_msg( $msg );
-	} elseif ( get_option( 'mc_rewards' ) !== 'off' ) {
-		update_option( 'mc_rewards', 'off' );
-		$msg = '<p class="success_msg">' . __( 'Monkey Rewards turned Off!', 'mailchimp_i18n' ) . '</p>';
-		mailchimp_sf_global_msg( $msg );
-	}
 	if ( isset( $_POST['mc_use_javascript'] ) ) {
 		update_option( 'mc_use_javascript', 'on' );
 		$msg = '<p class="success_msg">' . __( 'Fancy Javascript submission turned On!', 'mailchimp_i18n' ) . '</p>';
diff --git a/mailchimp_upgrade.php b/mailchimp_upgrade.php
new file mode 100644
index 0000000..926a987
--- /dev/null
+++ b/mailchimp_upgrade.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * Upgrade routines.
+ *
+ * @package Mailchimp
+ */
+
+/**
+ * Check plugin version.
+ *
+ * @since 1.6.0
+ * @return void
+ */
+function mailchimp_version_check() {
+	$db_option = get_option( 'mc_version' );
+
+	if ( MCSF_VER === $db_option ) {
+		return;
+	}
+
+	if ( false === $db_option || version_compare( '1.6.0', $db_option, '>' ) ) {
+		mailchimp_update_1_6_0();
+	}
+
+	update_option( 'mc_version', MCSF_VER );
+}
+
+add_action( 'plugins_loaded', 'mailchimp_version_check' );
+
+/**
+ * Version 1.6.0 update routine
+ *   - Remove MonkeyRewards checkbox option
+ *
+ * @return void
+ */
+function mailchimp_update_1_6_0() {
+	delete_option( 'mc_rewards' );
+}
diff --git a/mailchimp_widget.php b/mailchimp_widget.php
index f799df0..6e4e906 100644
--- a/mailchimp_widget.php
+++ b/mailchimp_widget.php
@@ -262,14 +262,6 @@ function mailchimp_sf_signup_form( $args = array() ) {
 			</div><!-- /mc_unsub_link -->
 			<?php
 		}
-		if ( $user && get_option( 'mc_rewards' ) === 'on' ) {
-			?>
-			<br/>
-			<div id="mc_display_rewards" align="center">
-				<?php esc_html_e( 'powered by', 'mailchimp_i18n' ); ?> <a href="<?php echo esc_url( 'http://www.mailchimp.com/affiliates/?aid=' . $user['account_id'] . '&amp;afl=1' ); ?>">Mailchimp</a>!
-			</div><!-- /mc_display_rewards -->
-			<?php
-		}
 		?>
 
 	</div><!-- /mc_form_inside -->
diff --git a/readme.txt b/readme.txt
index c03ae09..232ca5c 100644
--- a/readme.txt
+++ b/readme.txt
@@ -27,8 +27,7 @@ This section describes how to install the plugin and get started using it.
 3. Navigate to **Settings** click **Mailchimp Setup**.
 4. Enter your Mailchimp API Key and let the plugin verify it.
 5. Select the list where you want to send new Mailchimp subscribers.
-6. Optional: turn **MonkeyRewards** on or off.
-7. Optional: Turn **Merge Fields** and **Groups** on or off. Navigate to **Appearance**, and click **Widgets**. Drag the Mailchimp Widget into one of your Widget Areas.
+6. Optional: Turn **Merge Fields** and **Groups** on or off. Navigate to **Appearance**, and click **Widgets**. Drag the Mailchimp Widget into one of your Widget Areas.
 
 = Advanced =
 
@@ -101,6 +100,7 @@ If your language is not listed above, feel free to create a translation. Here ar
 = 1.6.0 =
 * Deprecated function `mailchimpSF_signup_form`. Function `mailchimp_sf_signup_form` should be used instead.
 * Bumps minimum PHP version to 7.0
+* Removes MonkeyRewards feature.
 
 = 1.5.8 =
 * Fix PHP warning for merge tags.
diff --git a/views/css/frontend.php b/views/css/frontend.php
index 586ef35..6beecb6 100644
--- a/views/css/frontend.php
+++ b/views/css/frontend.php
@@ -55,7 +55,6 @@
 	#mc-indicates-required {
 		width:100%;
 	}
-	#mc_display_rewards {}
 	.mc_interests_header {
 		font-weight:bold;
 	}
diff --git a/views/setup_page.php b/views/setup_page.php
index 884b524..b858e7f 100644
--- a/views/setup_page.php
+++ b/views/setup_page.php
@@ -260,27 +260,6 @@
 
 <table class="widefat mc-widefat">
 	<tr><th colspan="2">List Options</th></tr>
-	<tr valign="top">
-		<th scope="row"><?php esc_html_e( 'MonkeyRewards', 'mailchimp_i18n' ); ?>?</th>
-		<td><input name="mc_rewards" type="checkbox"<?php if ( get_option( 'mc_rewards' ) === 'on' || get_option( 'mc_rewards' ) === '' ) { echo ' checked="checked"'; } ?> id="mc_rewards" class="code" />
-			<em><label for="mc_rewards">
-				<?php
-				echo wp_kses(
-					__(
-						'We\'ll add a "powered by Mailchimp" link to your form that will help you earn <a href="http://kb.mailchimp.com/accounts/account-setup/monkeyrewards-credits" target="_blank">MonkeyRewards</a>. You can turn it off at any time.',
-						'mailchimp_i18n'
-					),
-					[
-						'a' => [
-							'href',
-							'target',
-						],
-					]
-				);
-				?>
-			</label></em>
-		</td>
-	</tr>
 
 	<tr valign="top">
 		<th scope="row"><?php esc_html_e( 'Use JavaScript Support?', 'mailchimp_i18n' ); ?></th>