@@ -723,7 +723,7 @@ impl OsStr {
723723 ///
724724 /// assert_eq!("grÜße, jÜrgen ❤", s);
725725 /// ```
726- #[ stable( feature = "osstring_ascii" , since = "1.52 .0" ) ]
726+ #[ stable( feature = "osstring_ascii" , since = "1.53 .0" ) ]
727727 #[ inline]
728728 pub fn make_ascii_lowercase ( & mut self ) {
729729 self . inner . make_ascii_lowercase ( )
@@ -748,7 +748,7 @@ impl OsStr {
748748 ///
749749 /// assert_eq!("GRüßE, JüRGEN ❤", s);
750750 /// ```
751- #[ stable( feature = "osstring_ascii" , since = "1.52 .0" ) ]
751+ #[ stable( feature = "osstring_ascii" , since = "1.53 .0" ) ]
752752 #[ inline]
753753 pub fn make_ascii_uppercase ( & mut self ) {
754754 self . inner . make_ascii_uppercase ( )
@@ -770,7 +770,7 @@ impl OsStr {
770770 ///
771771 /// assert_eq!("grüße, jürgen ❤", s.to_ascii_lowercase());
772772 /// ```
773- #[ stable( feature = "osstring_ascii" , since = "1.52 .0" ) ]
773+ #[ stable( feature = "osstring_ascii" , since = "1.53 .0" ) ]
774774 pub fn to_ascii_lowercase ( & self ) -> OsString {
775775 OsString :: from_inner ( self . inner . to_ascii_lowercase ( ) )
776776 }
@@ -791,7 +791,7 @@ impl OsStr {
791791 ///
792792 /// assert_eq!("GRüßE, JüRGEN ❤", s.to_ascii_uppercase());
793793 /// ```
794- #[ stable( feature = "osstring_ascii" , since = "1.52 .0" ) ]
794+ #[ stable( feature = "osstring_ascii" , since = "1.53 .0" ) ]
795795 pub fn to_ascii_uppercase ( & self ) -> OsString {
796796 OsString :: from_inner ( self . inner . to_ascii_uppercase ( ) )
797797 }
@@ -809,7 +809,7 @@ impl OsStr {
809809 /// assert!(ascii.is_ascii());
810810 /// assert!(!non_ascii.is_ascii());
811811 /// ```
812- #[ stable( feature = "osstring_ascii" , since = "1.52 .0" ) ]
812+ #[ stable( feature = "osstring_ascii" , since = "1.53 .0" ) ]
813813 #[ inline]
814814 pub fn is_ascii ( & self ) -> bool {
815815 self . inner . is_ascii ( )
@@ -829,7 +829,7 @@ impl OsStr {
829829 /// assert!(OsString::from("Ferrös").eq_ignore_ascii_case("FERRöS"));
830830 /// assert!(!OsString::from("Ferrös").eq_ignore_ascii_case("FERRÖS"));
831831 /// ```
832- #[ stable( feature = "osstring_ascii" , since = "1.52 .0" ) ]
832+ #[ stable( feature = "osstring_ascii" , since = "1.53 .0" ) ]
833833 pub fn eq_ignore_ascii_case < S : AsRef < OsStr > > ( & self , other : S ) -> bool {
834834 self . inner . eq_ignore_ascii_case ( & other. as_ref ( ) . inner )
835835 }
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