diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index d069e92b8..6d884628a 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -2892,7 +2892,7 @@ function capital_P_dangit( $text ) {
 /**
  * Sanitize a mime type
  *
- * @since 3.2.0
+ * @since 3.1.3
  *
  * @param string $mime_type Mime type
  * @return string Sanitized mime type
diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 999b8d040..a0b3fc0d8 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -4549,7 +4549,7 @@ function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = ar
  *
  * @link https://developer.mozilla.org/en/the_x-frame-options_response_header
  *
- * @since 3.2.0
+ * @since 3.1.3
  * @return none
  */
 function send_frame_options_header() {
diff --git a/wp-includes/meta.php b/wp-includes/meta.php
index 7264e404e..36a82a97d 100644
--- a/wp-includes/meta.php
+++ b/wp-includes/meta.php
@@ -582,7 +582,7 @@ function _get_meta_table($type) {
 /**
  * Determine whether a meta key is protected
  *
- * @since 3.2.0
+ * @since 3.1.3
  *
  * @param string $meta_key Meta key
  * @return bool True if the key is protected, false otherwise.
@@ -596,7 +596,7 @@ function is_protected_meta( $meta_key, $meta_type = null ) {
 /**
  * Sanitize meta value
  *
- * @since 3.2.0
+ * @since 3.1.3
  *
  * @param string $meta_key Meta key
  * @param mixed $meta_value Meta value to sanitize