diff --git a/string.c b/string.c
index 540eb4e994..99acd4e99b 100644
--- a/string.c
+++ b/string.c
@@ -9686,6 +9686,7 @@ sym_inspect(VALUE sym)
  *  Returns the name or string corresponding to <i>sym</i>.
  *
  *     :fred.id2name   #=> "fred"
+ *     :ginger.to_s    #=> "ginger"
  */
 
 
diff --git a/version.h b/version.h
index e721ccbd83..eb8fecab9e 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.4.4"
 #define RUBY_RELEASE_DATE "2017-12-20"
-#define RUBY_PATCHLEVEL 209
+#define RUBY_PATCHLEVEL 210
 
 #define RUBY_RELEASE_YEAR 2017
 #define RUBY_RELEASE_MONTH 12