diff --git a/library/core/src/slice/iter.rs b/library/core/src/slice/iter.rs
index 53fdc7bc53b..93358f58d2b 100644
--- a/library/core/src/slice/iter.rs
+++ b/library/core/src/slice/iter.rs
@@ -452,7 +452,7 @@ impl<T, P> FusedIterator for Split<'_, T, P> where P: FnMut(&T) -> bool {}
 ///
 /// [`split_inclusive`]: ../../std/primitive.slice.html#method.split_inclusive
 /// [slices]: ../../std/primitive.slice.html
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 pub struct SplitInclusive<'a, T: 'a, P>
 where
     P: FnMut(&T) -> bool,
@@ -469,7 +469,7 @@ impl<'a, T: 'a, P: FnMut(&T) -> bool> SplitInclusive<'a, T, P> {
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<T: fmt::Debug, P> fmt::Debug for SplitInclusive<'_, T, P>
 where
     P: FnMut(&T) -> bool,
@@ -483,7 +483,7 @@ where
 }
 
 // FIXME(#26925) Remove in favor of `#[derive(Clone)]`
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<T, P> Clone for SplitInclusive<'_, T, P>
 where
     P: Clone + FnMut(&T) -> bool,
@@ -493,7 +493,7 @@ where
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<'a, T, P> Iterator for SplitInclusive<'a, T, P>
 where
     P: FnMut(&T) -> bool,
@@ -522,7 +522,7 @@ where
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<'a, T, P> DoubleEndedIterator for SplitInclusive<'a, T, P>
 where
     P: FnMut(&T) -> bool,
@@ -547,7 +547,7 @@ where
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<T, P> FusedIterator for SplitInclusive<'_, T, P> where P: FnMut(&T) -> bool {}
 
 /// An iterator over the mutable subslices of the vector which are separated
@@ -693,7 +693,7 @@ impl<T, P> FusedIterator for SplitMut<'_, T, P> where P: FnMut(&T) -> bool {}
 ///
 /// [`split_inclusive_mut`]: ../../std/primitive.slice.html#method.split_inclusive_mut
 /// [slices]: ../../std/primitive.slice.html
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 pub struct SplitInclusiveMut<'a, T: 'a, P>
 where
     P: FnMut(&T) -> bool,
@@ -710,7 +710,7 @@ impl<'a, T: 'a, P: FnMut(&T) -> bool> SplitInclusiveMut<'a, T, P> {
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<T: fmt::Debug, P> fmt::Debug for SplitInclusiveMut<'_, T, P>
 where
     P: FnMut(&T) -> bool,
@@ -723,7 +723,7 @@ where
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<'a, T, P> Iterator for SplitInclusiveMut<'a, T, P>
 where
     P: FnMut(&T) -> bool,
@@ -763,7 +763,7 @@ where
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<'a, T, P> DoubleEndedIterator for SplitInclusiveMut<'a, T, P>
 where
     P: FnMut(&T) -> bool,
@@ -797,7 +797,7 @@ where
     }
 }
 
-#[stable(feature = "split_inclusive", since = "1.49.0")]
+#[stable(feature = "split_inclusive", since = "1.51.0")]
 impl<T, P> FusedIterator for SplitInclusiveMut<'_, T, P> where P: FnMut(&T) -> bool {}
 
 /// An iterator over subslices separated by elements that match a predicate