diff --git a/src/js/_enqueues/wp/dashboard.js b/src/js/_enqueues/wp/dashboard.js
index 87a2191967..1929388d55 100644
--- a/src/js/_enqueues/wp/dashboard.js
+++ b/src/js/_enqueues/wp/dashboard.js
@@ -623,7 +623,7 @@ jQuery( function( $ ) {
 		 * These can't be stored in the database, because they're dependent on
 		 * the user's current time zone, locale, etc.
 		 *
-		 * @since 5.6.0
+		 * @since 5.5.2
 		 *
 		 * @param {Array}  rawEvents  The events that should have dynamic fields added to them.
 		 * @param {string} timeFormat A time format acceptable by `wp.date.dateI18n()`.
@@ -658,7 +658,7 @@ jQuery( function( $ ) {
 		/**
 		 * Returns the user's local/browser time zone, in a form suitable for `wp.date.i18n()`.
 		 *
-		 * @since 5.6.0
+		 * @since 5.5.2
 		 *
 		 * @param startTimestamp
 		 *
@@ -693,7 +693,7 @@ jQuery( function( $ ) {
 		 *
 		 * See https://stackoverflow.com/questions/21102435/why-does-javascript-date-gettimezoneoffset-consider-0500-as-a-positive-off.
 		 *
-		 * @since 5.6.0
+		 * @since 5.5.2
 		 *
 		 * @param {number} startTimestamp
 		 *
@@ -706,7 +706,7 @@ jQuery( function( $ ) {
 		/**
 		 * Get a short time zone name, like `PST`.
 		 *
-		 * @since 5.6.0
+		 * @since 5.5.2
 		 *
 		 * @param {number} startTimestamp
 		 *
@@ -748,7 +748,7 @@ jQuery( function( $ ) {
 		/**
 		 * Format a start/end date in the user's local time zone and locale.
 		 *
-		 * @since 5.6.0
+		 * @since 5.5.2
 		 *
 		 * @param {int}    startDate   The Unix timestamp in milliseconds when the the event starts.
 		 * @param {int}    endDate     The Unix timestamp in milliseconds when the the event ends.
diff --git a/src/wp-admin/includes/class-wp-community-events.php b/src/wp-admin/includes/class-wp-community-events.php
index 6f4a101067..35708547af 100644
--- a/src/wp-admin/includes/class-wp-community-events.php
+++ b/src/wp-admin/includes/class-wp-community-events.php
@@ -77,7 +77,7 @@ class WP_Community_Events {
 	 * mitigates possible privacy concerns.
 	 *
 	 * @since 4.8.0
-	 * @since 5.6.0 Response no longer contains formatted date field. They're added
+	 * @since 5.5.2 Response no longer contains formatted date field. They're added
 	 *              in `wp.communityEvents.populateDynamicEventFields()` now.
 	 *
 	 * @param string $location_search Optional. City name to help determine the location.
@@ -345,7 +345,7 @@ class WP_Community_Events {
 	 * Gets cached events.
 	 *
 	 * @since 4.8.0
-	 * @since 5.6.0 Response no longer contains formatted date field. They're added
+	 * @since 5.5.2 Response no longer contains formatted date field. They're added
 	 *              in `wp.communityEvents.populateDynamicEventFields()` now.
 	 *
 	 * @return array|false An array containing `location` and `events` items
@@ -377,7 +377,7 @@ class WP_Community_Events {
 	protected function format_event_data_time( $response_body ) {
 		_deprecated_function(
 			__METHOD__,
-			'5.6.0',
+			'5.5.2',
 			'This is no longer used by Core, and only kept for backwards-compatibility.'
 		);
 
@@ -451,7 +451,7 @@ class WP_Community_Events {
 	 *
 	 * @since 4.8.0
 	 * @since 4.9.7 Stick a WordCamp to the final list.
-	 * @since 5.6.0 Accepts and returns only the events, rather than an entire HTTP response.
+	 * @since 5.5.2 Accepts and returns only the events, rather than an entire HTTP response.
 	 *
 	 * @param array $events The events that will be prepared.
 	 * @return array The response body with events trimmed.
diff --git a/tests/phpunit/tests/admin/includesCommunityEvents.php b/tests/phpunit/tests/admin/includesCommunityEvents.php
index b0280dd92e..6b84790334 100644
--- a/tests/phpunit/tests/admin/includesCommunityEvents.php
+++ b/tests/phpunit/tests/admin/includesCommunityEvents.php
@@ -280,7 +280,7 @@ class Test_WP_Community_Events extends WP_UnitTestCase {
 	 *
 	 * @covers WP_Community_Events::trim_events
 	 *
-	 * @since 5.6.0
+	 * @since 5.5.2
 	 */
 	public function test_trim_expired_events() {
 		$trim_events = new ReflectionMethod( $this->instance, 'trim_events' );
@@ -309,7 +309,7 @@ class Test_WP_Community_Events extends WP_UnitTestCase {
 	 * @covers WP_Community_Events::trim_events
 	 *
 	 * @since 4.9.7
-	 * @since 5.6.0 Tests `trim_events()` directly instead of indirectly via `get_events()`.
+	 * @since 5.5.2 Tests `trim_events()` directly instead of indirectly via `get_events()`.
 	 */
 	public function test_trim_events_pin_wordcamp() {
 		$trim_events = new ReflectionMethod( $this->instance, 'trim_events' );
@@ -331,7 +331,7 @@ class Test_WP_Community_Events extends WP_UnitTestCase {
 	 * Simulates a scenario where a WordCamp needs to be pinned higher than it's default position.
 	 *
 	 * @since 4.9.7
-	 * @since 5.6.0 Accepts and returns only the events, rather than an entire HTTP response.
+	 * @since 5.5.2 Accepts and returns only the events, rather than an entire HTTP response.
 	 *
 	 * @return array A list of mock events.
 	 */
@@ -414,7 +414,7 @@ class Test_WP_Community_Events extends WP_UnitTestCase {
 	 * @covers WP_Community_Events::trim_events
 	 *
 	 * @since 4.9.7
-	 * @since 5.6.0 Tests `trim_events()` directly instead of indirectly via `get_events()`.
+	 * @since 5.5.2 Tests `trim_events()` directly instead of indirectly via `get_events()`.
 	 */
 	public function test_trim_events_dont_pin_multiple_wordcamps() {
 		$trim_events = new ReflectionMethod( $this->instance, 'trim_events' );
@@ -437,7 +437,7 @@ class Test_WP_Community_Events extends WP_UnitTestCase {
 	 * no need to pin extra camp b/c one already exists in response
 	 *
 	 * @since 4.9.7
-	 * @since 5.6.0 Tests `trim_events()` directly instead of indirectly via `get_events()`.
+	 * @since 5.5.2 Tests `trim_events()` directly instead of indirectly via `get_events()`.
 	 *
 	 * @return array A mock HTTP response.
 	 */