diff --git a/libcxx/docs/FeatureTestMacroTable.rst b/libcxx/docs/FeatureTestMacroTable.rst
--- a/libcxx/docs/FeatureTestMacroTable.rst
+++ b/libcxx/docs/FeatureTestMacroTable.rst
@@ -260,6 +260,8 @@
     ------------------------------------------------- -----------------
     ``__cpp_lib_math_constants``                      ``201907L``
     ------------------------------------------------- -----------------
+    ``__cpp_lib_move_iterator_concept``               ``202207L``
+    ------------------------------------------------- -----------------
     ``__cpp_lib_polymorphic_allocator``               ``201902L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_ranges``                              ``202106L``
@@ -326,8 +328,6 @@
     ------------------------------------------------- -----------------
     ``__cpp_lib_is_scoped_enum``                      ``202011L``
     ------------------------------------------------- -----------------
-    ``__cpp_lib_move_iterator_concept``               ``202207L``
-    ------------------------------------------------- -----------------
     ``__cpp_lib_move_only_function``                  *unimplemented*
     ------------------------------------------------- -----------------
     ``__cpp_lib_optional``                            ``202110L``
diff --git a/libcxx/include/__iterator/move_iterator.h b/libcxx/include/__iterator/move_iterator.h
--- a/libcxx/include/__iterator/move_iterator.h
+++ b/libcxx/include/__iterator/move_iterator.h
@@ -16,6 +16,7 @@
 #include <__concepts/convertible_to.h>
 #include <__concepts/derived_from.h>
 #include <__concepts/same_as.h>
+#include <__config>
 #include <__iterator/concepts.h>
 #include <__iterator/incrementable_traits.h>
 #include <__iterator/iter_move.h>
@@ -34,44 +35,29 @@
 #include <__utility/declval.h>
 #include <__utility/move.h>
 
-#include <__config>
-
-#include <__config>
-
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-<<<<<<< HEAD
 #if _LIBCPP_STD_VER >= 20
 template<class _Iter, class = void>
-=======
-#if _LIBCPP_STD_VER > 17
-template <class _Iter, class = void>
->>>>>>> 15527f7e112d (move_iterator updates)
 struct __move_iter_category_base {};
 
-template <class _Iter>
-template <class _Iter>
+template<class _Iter>
   requires requires { typename iterator_traits<_Iter>::iterator_category; }
 struct __move_iter_category_base<_Iter> {
-  using iterator_category =
-      _If<derived_from<typename iterator_traits<_Iter>::iterator_category, random_access_iterator_tag>,
-          random_access_iterator_tag,
-          typename iterator_traits<_Iter>::iterator_category>;
-  using iterator_category =
-      _If<derived_from<typename iterator_traits<_Iter>::iterator_category, random_access_iterator_tag>,
-          random_access_iterator_tag,
-          typename iterator_traits<_Iter>::iterator_category>;
+    using iterator_category = _If<
+        derived_from<typename iterator_traits<_Iter>::iterator_category, random_access_iterator_tag>,
+        random_access_iterator_tag,
+        typename iterator_traits<_Iter>::iterator_category
+    >;
 };
 
-template <class _Iter, class _Sent>
-template <class _Iter, class _Sent>
+template<class _Iter, class _Sent>
 concept __move_iter_comparable = requires {
-  { std::declval<const _Iter&>() == std::declval<_Sent>() } -> convertible_to<bool>;
-  { std::declval<const _Iter&>() == std::declval<_Sent>() } -> convertible_to<bool>;
+    { std::declval<const _Iter&>() == std::declval<_Sent>() } -> convertible_to<bool>;
 };
 #endif // _LIBCPP_STD_VER >= 20
 
@@ -81,316 +67,81 @@
     : public __move_iter_category_base<_Iter>
 #endif
 {
-#if _LIBCPP_STD_VER > 17
-
-#if _LIBCPP_STD_VER > 17
-
-public:
-  using iterator_type = _Iter;
-  // iterator_category is inherited and not always present
-  using value_type      = iter_value_t<_Iter>;
-  using difference_type = iter_difference_t<_Iter>;
-  using pointer         = _Iter;
-  using reference       = iter_rvalue_reference_t<_Iter>;
-#  if _LIBCPP_STD_VER > 20
-
+  #if _LIBCPP_STD_VER >= 20
 private:
-  static consteval auto __get_iterator_concept() {
-    if constexpr (random_access_iterator<_Iter>) {
-      return random_access_iterator_tag{};
-    } else if constexpr (bidirectional_iterator<_Iter>) {
-      return bidirectional_iterator_tag{};
-    } else if constexpr (forward_iterator<_Iter>) {
-      return forward_iterator_tag{};
-    } else {
-      return input_iterator_tag{};
+    _LIBCPP_HIDE_FROM_ABI
+    static constexpr auto __get_iter_concept() {
+        if constexpr (random_access_iterator<_Iter>) {
+            return random_access_iterator_tag{};
+        } else if constexpr (bidirectional_iterator<_Iter>) {
+            return bidirectional_iterator_tag{};
+        } else if constexpr (forward_iterator<_Iter>) {
+            return forward_iterator_tag{};
+        } else {
+            return input_iterator_tag{};
+        }
     }
-  }
+#endif // _LIBCPP_STD_VER >= 20
 
 public:
-  using iterator_concept = decltype(__get_iterator_concept());
-#  endif //  _LIBCPP_STD_VER > 20
-  using iterator_type = _Iter;
-  // iterator_category is inherited and not always present
-  using value_type      = iter_value_t<_Iter>;
-  using difference_type = iter_difference_t<_Iter>;
-  using pointer         = _Iter;
-  using reference       = iter_rvalue_reference_t<_Iter>;
-#  if _LIBCPP_STD_VER > 20
+#if _LIBCPP_STD_VER >= 20
+    using iterator_type = _Iter;
+    using iterator_concept = decltype(__get_iter_concept());
+    // iterator_category is inherited and not always present
+    using value_type = iter_value_t<_Iter>;
+    using difference_type = iter_difference_t<_Iter>;
+    using pointer = _Iter;
+    using reference = iter_rvalue_reference_t<_Iter>;
+#else
+    typedef _Iter iterator_type;
+    typedef _If<
+        __is_cpp17_random_access_iterator<_Iter>::value,
+        random_access_iterator_tag,
+        typename iterator_traits<_Iter>::iterator_category
+    > iterator_category;
+    typedef typename iterator_traits<iterator_type>::value_type value_type;
+    typedef typename iterator_traits<iterator_type>::difference_type difference_type;
+    typedef iterator_type pointer;
+
+    typedef typename iterator_traits<iterator_type>::reference __reference;
+    typedef typename conditional<
+            is_reference<__reference>::value,
+            __libcpp_remove_reference_t<__reference>&&,
+            __reference
+        >::type reference;
+#endif // _LIBCPP_STD_VER >= 20
 
-private:
-  static consteval auto __get_iterator_concept() {
-    if constexpr (random_access_iterator<_Iter>) {
-      return random_access_iterator_tag{};
-    } else if constexpr (bidirectional_iterator<_Iter>) {
-      return bidirectional_iterator_tag{};
-    } else if constexpr (forward_iterator<_Iter>) {
-      return forward_iterator_tag{};
-    } else {
-      return input_iterator_tag{};
-    }
-  }
+    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+    explicit move_iterator(_Iter __i) : __current_(std::move(__i)) {}
 
-public:
-  using iterator_concept = decltype(__get_iterator_concept());
-#  endif //  _LIBCPP_STD_VER > 20
-#else
+    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+    move_iterator& operator++() { ++__current_; return *this; }
 
-public:
-  typedef _Iter iterator_type;
-  typedef _If<__is_cpp17_random_access_iterator<_Iter>::value,
-              random_access_iterator_tag,
-              typename iterator_traits<_Iter>::iterator_category>
-      iterator_category;
-  typedef typename iterator_traits<iterator_type>::value_type value_type;
-  typedef typename iterator_traits<iterator_type>::difference_type difference_type;
-  typedef iterator_type pointer;
+    _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+    pointer operator->() const { return __current_; }
 
-public:
-  typedef _Iter iterator_type;
-  typedef _If<__is_cpp17_random_access_iterator<_Iter>::value,
-              random_access_iterator_tag,
-              typename iterator_traits<_Iter>::iterator_category>
-      iterator_category;
-  typedef typename iterator_traits<iterator_type>::value_type value_type;
-  typedef typename iterator_traits<iterator_type>::difference_type difference_type;
-  typedef iterator_type pointer;
-
-  typedef typename iterator_traits<iterator_type>::reference __reference;
-  typedef
-      typename conditional<is_reference<__reference>::value, __libcpp_remove_reference_t<__reference>&&, __reference>::
-          type reference;
-#endif // _LIBCPP_STD_VER > 17
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 explicit move_iterator(_Iter __i) : __current_(std::move(__i)) {}
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator++() {
-    ++__current_;
-    return *this;
-  }
-
-  _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 pointer operator->() const {
-    return __current_;
-  }
-
-#if _LIBCPP_STD_VER > 17
-  _LIBCPP_HIDE_FROM_ABI constexpr move_iterator() requires is_constructible_v<_Iter> : __current_() {}
-
-  template <class _Up>
-    requires(!_IsSame<_Up, _Iter>::value)
-  &&convertible_to<const _Up&, _Iter> _LIBCPP_HIDE_FROM_ABI constexpr move_iterator(const move_iterator<_Up>& __u)
-      : __current_(__u.base()) {}
-
-  template <class _Up>
-    requires(!_IsSame<_Up, _Iter>::value)
-  &&convertible_to<const _Up&, _Iter>&&
-      assignable_from< _Iter&, const _Up&> _LIBCPP_HIDE_FROM_ABI constexpr move_iterator&
-      operator=(const move_iterator<_Up>& __u) {
-    __current_ = __u.base();
-    return *this;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr const _Iter& base() const& noexcept { return __current_; }
-  _LIBCPP_HIDE_FROM_ABI constexpr _Iter base() && { return std::move(__current_); }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr reference operator*() const { return ranges::iter_move(__current_); }
-  _LIBCPP_HIDE_FROM_ABI constexpr reference operator[](difference_type __n) const {
-    return ranges::iter_move(__current_ + __n);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr auto operator++(int) requires forward_iterator<_Iter> {
-    move_iterator __tmp(*this);
-    ++__current_;
-    return __tmp;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr void operator++(int) { ++__current_; }
-#else
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator() : __current_() {}
-
-  template <class _Up, class = __enable_if_t<!is_same<_Up, _Iter>::value && is_convertible<const _Up&, _Iter>::value> >
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator(const move_iterator<_Up>& __u)
-      : __current_(__u.base()) {}
-
-  template <class _Up,
-            class = __enable_if_t<!is_same<_Up, _Iter>::value && is_convertible<const _Up&, _Iter>::value &&
-                                  is_assignable<_Iter&, const _Up&>::value> >
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator=(const move_iterator<_Up>& __u) {
-    __current_ = __u.base();
-    return *this;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 _Iter base() const { return __current_; }
-  typedef typename iterator_traits<iterator_type>::reference __reference;
-  typedef
-      typename conditional<is_reference<__reference>::value, __libcpp_remove_reference_t<__reference>&&, __reference>::
-          type reference;
-#endif // _LIBCPP_STD_VER > 17
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 explicit move_iterator(_Iter __i) : __current_(std::move(__i)) {}
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator++() {
-    ++__current_;
-    return *this;
-  }
-
-  _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 pointer operator->() const {
-    return __current_;
-  }
-
-#if _LIBCPP_STD_VER > 17
-  _LIBCPP_HIDE_FROM_ABI constexpr move_iterator() requires is_constructible_v<_Iter> : __current_() {}
-
-  template <class _Up>
-    requires(!_IsSame<_Up, _Iter>::value)
-  &&convertible_to<const _Up&, _Iter> _LIBCPP_HIDE_FROM_ABI constexpr move_iterator(const move_iterator<_Up>& __u)
-      : __current_(__u.base()) {}
-
-  template <class _Up>
-    requires(!_IsSame<_Up, _Iter>::value)
-  &&convertible_to<const _Up&, _Iter>&&
-      assignable_from< _Iter&, const _Up&> _LIBCPP_HIDE_FROM_ABI constexpr move_iterator&
-      operator=(const move_iterator<_Up>& __u) {
-    __current_ = __u.base();
-    return *this;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr const _Iter& base() const& noexcept { return __current_; }
-  _LIBCPP_HIDE_FROM_ABI constexpr _Iter base() && { return std::move(__current_); }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr reference operator*() const { return ranges::iter_move(__current_); }
-  _LIBCPP_HIDE_FROM_ABI constexpr reference operator[](difference_type __n) const {
-    return ranges::iter_move(__current_ + __n);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr auto operator++(int) requires forward_iterator<_Iter> {
-    move_iterator __tmp(*this);
-    ++__current_;
-    return __tmp;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI constexpr void operator++(int) { ++__current_; }
-#else
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator() : __current_() {}
-
-  template <class _Up, class = __enable_if_t<!is_same<_Up, _Iter>::value && is_convertible<const _Up&, _Iter>::value> >
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator(const move_iterator<_Up>& __u)
-      : __current_(__u.base()) {}
-
-  template <class _Up,
-            class = __enable_if_t<!is_same<_Up, _Iter>::value && is_convertible<const _Up&, _Iter>::value &&
-                                  is_assignable<_Iter&, const _Up&>::value> >
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator=(const move_iterator<_Up>& __u) {
-    __current_ = __u.base();
-    return *this;
-  }
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 _Iter base() const { return __current_; }
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 reference operator*() const {
-    return static_cast<reference>(*__current_);
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 reference operator[](difference_type __n) const {
-    return static_cast<reference>(__current_[__n]);
-  }
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator++(int) {
-    move_iterator __tmp(*this);
-    ++__current_;
-    return __tmp;
-  }
-#endif // _LIBCPP_STD_VER > 17
-
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator--() {
-    --__current_;
-    return *this;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator--(int) {
-    move_iterator __tmp(*this);
-    --__current_;
-    return __tmp;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator+(difference_type __n) const {
-    return move_iterator(__current_ + __n);
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator+=(difference_type __n) {
-    __current_ += __n;
-    return *this;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator-(difference_type __n) const {
-    return move_iterator(__current_ - __n);
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator-=(difference_type __n) {
-    __current_ -= __n;
-    return *this;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator--() {
-    --__current_;
-    return *this;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator--(int) {
-    move_iterator __tmp(*this);
-    --__current_;
-    return __tmp;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator+(difference_type __n) const {
-    return move_iterator(__current_ + __n);
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator+=(difference_type __n) {
-    __current_ += __n;
-    return *this;
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator operator-(difference_type __n) const {
-    return move_iterator(__current_ - __n);
-  }
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator& operator-=(difference_type __n) {
-    __current_ -= __n;
-    return *this;
-  }
-
-<<<<<<< HEAD
 #if _LIBCPP_STD_VER >= 20
     _LIBCPP_HIDE_FROM_ABI constexpr
     move_iterator() requires is_constructible_v<_Iter> : __current_() {}
-=======
-#if _LIBCPP_STD_VER > 17
-  template <sentinel_for<_Iter> _Sent>
-  friend _LIBCPP_HIDE_FROM_ABI constexpr bool
-  operator==(const move_iterator& __x, const move_sentinel<_Sent>& __y) requires __move_iter_comparable<_Iter, _Sent> {
-    return __x.base() == __y.base();
-  }
->>>>>>> 15527f7e112d (move_iterator updates)
 
-  template <sized_sentinel_for<_Iter> _Sent>
-  friend _LIBCPP_HIDE_FROM_ABI constexpr iter_difference_t<_Iter>
-  operator-(const move_sentinel<_Sent>& __x, const move_iterator& __y) {
-    return __x.base() - __y.base();
-  }
-  template <sized_sentinel_for<_Iter> _Sent>
-  friend _LIBCPP_HIDE_FROM_ABI constexpr iter_difference_t<_Iter>
-  operator-(const move_sentinel<_Sent>& __x, const move_iterator& __y) {
-    return __x.base() - __y.base();
-  }
+    template <class _Up>
+        requires (!_IsSame<_Up, _Iter>::value) && convertible_to<const _Up&, _Iter>
+    _LIBCPP_HIDE_FROM_ABI constexpr
+    move_iterator(const move_iterator<_Up>& __u) : __current_(__u.base()) {}
+
+    template <class _Up>
+        requires (!_IsSame<_Up, _Iter>::value) &&
+                 convertible_to<const _Up&, _Iter> &&
+                 assignable_from<_Iter&, const _Up&>
+    _LIBCPP_HIDE_FROM_ABI constexpr
+    move_iterator& operator=(const move_iterator<_Up>& __u) {
+        __current_ = __u.base();
+        return *this;
+    }
+
+    _LIBCPP_HIDE_FROM_ABI constexpr const _Iter& base() const & noexcept { return __current_; }
+    _LIBCPP_HIDE_FROM_ABI constexpr _Iter base() && { return std::move(__current_); }
 
-  template <sized_sentinel_for<_Iter> _Sent>
-  friend _LIBCPP_HIDE_FROM_ABI constexpr iter_difference_t<_Iter>
-  operator-(const move_iterator& __x, const move_sentinel<_Sent>& __y) {
-    return __x.base() - __y.base();
-  }
-  template <sized_sentinel_for<_Iter> _Sent>
-  friend _LIBCPP_HIDE_FROM_ABI constexpr iter_difference_t<_Iter>
-  operator-(const move_iterator& __x, const move_sentinel<_Sent>& __y) {
-    return __x.base() - __y.base();
-  }
-
-  friend _LIBCPP_HIDE_FROM_ABI constexpr iter_rvalue_reference_t<_Iter>
-  iter_move(const move_iterator& __i) noexcept(noexcept(ranges::iter_move(__i.__current_))) {
-    return ranges::iter_move(__i.__current_);
-  }
-  friend _LIBCPP_HIDE_FROM_ABI constexpr iter_rvalue_reference_t<_Iter>
-  iter_move(const move_iterator& __i) noexcept(noexcept(ranges::iter_move(__i.__current_))) {
-    return ranges::iter_move(__i.__current_);
-  }
-
-<<<<<<< HEAD
     _LIBCPP_HIDE_FROM_ABI constexpr
     reference operator*() const { return ranges::iter_move(__current_); }
     _LIBCPP_HIDE_FROM_ABI constexpr
@@ -489,143 +240,110 @@
         return ranges::iter_swap(__x.__current_, __y.__current_);
     }
 #endif // _LIBCPP_STD_VER >= 20
-=======
-  template <indirectly_swappable<_Iter> _It2>
-  friend _LIBCPP_HIDE_FROM_ABI constexpr void
-  iter_swap(const move_iterator& __x,
-            const move_iterator<_It2>& __y) noexcept(noexcept(ranges::iter_swap(__x.__current_, __y.__current_))) {
-    return ranges::iter_swap(__x.__current_, __y.__current_);
-  }
-#endif // _LIBCPP_STD_VER > 17
->>>>>>> 15527f7e112d (move_iterator updates)
 
 private:
-  template <class _It2>
-  friend class move_iterator;
-  template <class _It2>
-  friend class move_iterator;
+    template<class _It2> friend class move_iterator;
 
-  _Iter __current_;
-  _Iter __current_;
+    _Iter __current_;
 };
 _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(move_iterator);
 
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator==(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() == __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator==(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() == __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+bool operator==(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() == __y.base();
 }
 
 #if _LIBCPP_STD_VER <= 17
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator!=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() != __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator!=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() != __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+bool operator!=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() != __y.base();
 }
 #endif // _LIBCPP_STD_VER <= 17
 
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator<(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() < __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator<(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() < __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+bool operator<(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() < __y.base();
 }
 
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() > __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() > __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+bool operator>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() > __y.base();
 }
 
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator<=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() <= __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator<=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() <= __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+bool operator<=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() <= __y.base();
 }
 
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator>=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() >= __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 bool
-operator>=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() >= __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+bool operator>=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() >= __y.base();
 }
 
 #if _LIBCPP_STD_VER >= 20
 template <class _Iter1, three_way_comparable_with<_Iter1> _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI constexpr auto
-operator<=>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
-    -> compare_three_way_result_t<_Iter1, _Iter2> {
-  return __x.base() <=> __y.base();
-inline _LIBCPP_HIDE_FROM_ABI constexpr auto
-operator<=>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
-    -> compare_three_way_result_t<_Iter1, _Iter2> {
-  return __x.base() <=> __y.base();
+inline _LIBCPP_HIDE_FROM_ABI constexpr
+auto operator<=>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+    -> compare_three_way_result_t<_Iter1, _Iter2>
+{
+    return __x.base() <=> __y.base();
 }
 #endif // _LIBCPP_STD_VER >= 20
 
 #ifndef _LIBCPP_CXX03_LANG
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto
-operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) -> decltype(__x.base() - __y.base()) {
-  return __x.base() - __y.base();
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto
-operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) -> decltype(__x.base() - __y.base()) {
-  return __x.base() - __y.base();
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+auto operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+    -> decltype(__x.base() - __y.base())
+{
+    return __x.base() - __y.base();
 }
 #else
 template <class _Iter1, class _Iter2>
-inline _LIBCPP_HIDE_FROM_ABI typename move_iterator<_Iter1>::difference_type
-operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() - __y.base();
-inline _LIBCPP_HIDE_FROM_ABI typename move_iterator<_Iter1>::difference_type
-operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) {
-  return __x.base() - __y.base();
+inline _LIBCPP_HIDE_FROM_ABI
+typename move_iterator<_Iter1>::difference_type
+operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y)
+{
+    return __x.base() - __y.base();
 }
 #endif // !_LIBCPP_CXX03_LANG
 
 #if _LIBCPP_STD_VER >= 20
 template <class _Iter>
-inline _LIBCPP_HIDE_FROM_ABI constexpr move_iterator<_Iter>
-operator+(iter_difference_t<_Iter> __n, const move_iterator<_Iter>& __x) requires requires {
-  { __x.base() + __n } -> same_as<_Iter>;
-inline _LIBCPP_HIDE_FROM_ABI constexpr move_iterator<_Iter>
-operator+(iter_difference_t<_Iter> __n, const move_iterator<_Iter>& __x) requires requires {
-  { __x.base() + __n } -> same_as<_Iter>;
+inline _LIBCPP_HIDE_FROM_ABI constexpr
+move_iterator<_Iter> operator+(iter_difference_t<_Iter> __n, const move_iterator<_Iter>& __x)
+    requires requires { { __x.base() + __n } -> same_as<_Iter>; }
+{
+    return __x + __n;
 }
-{ return __x + __n; }
-{ return __x + __n; }
 #else
 template <class _Iter>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator<_Iter>
-operator+(typename move_iterator<_Iter>::difference_type __n, const move_iterator<_Iter>& __x) {
-  return move_iterator<_Iter>(__x.base() + __n);
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator<_Iter>
-operator+(typename move_iterator<_Iter>::difference_type __n, const move_iterator<_Iter>& __x) {
-  return move_iterator<_Iter>(__x.base() + __n);
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+move_iterator<_Iter>
+operator+(typename move_iterator<_Iter>::difference_type __n, const move_iterator<_Iter>& __x)
+{
+    return move_iterator<_Iter>(__x.base() + __n);
 }
 #endif // _LIBCPP_STD_VER >= 20
 
 template <class _Iter>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator<_Iter> make_move_iterator(_Iter __i) {
-  return move_iterator<_Iter>(std::move(__i));
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 move_iterator<_Iter> make_move_iterator(_Iter __i) {
-  return move_iterator<_Iter>(std::move(__i));
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17
+move_iterator<_Iter>
+make_move_iterator(_Iter __i)
+{
+    return move_iterator<_Iter>(std::move(__i));
 }
 
 _LIBCPP_END_NAMESPACE_STD
diff --git a/libcxx/include/iterator b/libcxx/include/iterator
--- a/libcxx/include/iterator
+++ b/libcxx/include/iterator
@@ -387,7 +387,7 @@
 class move_iterator {
 public:
     using iterator_type     = Iterator;
-    using iterator_concept  = input_iterator_tag; // From C++20
+    using iterator_concept  = see below; // From C++20
     using iterator_category = see below; // not always present starting from C++20
     using value_type        = iter_value_t<Iterator>; // Until C++20, iterator_traits<Iterator>::value_type
     using difference_type   = iter_difference_t<Iterator>; // Until C++20, iterator_traits<Iterator>::difference_type;
diff --git a/libcxx/include/version b/libcxx/include/version
--- a/libcxx/include/version
+++ b/libcxx/include/version
@@ -356,6 +356,7 @@
 # endif
 # define __cpp_lib_list_remove_return_type              201806L
 # define __cpp_lib_math_constants                       201907L
+# define __cpp_lib_move_iterator_concept                202207L
 # define __cpp_lib_polymorphic_allocator                201902L
 # define __cpp_lib_ranges                               202106L
 # define __cpp_lib_remove_cvref                         201711L
@@ -398,7 +399,6 @@
 # define __cpp_lib_forward_like                         202207L
 # define __cpp_lib_invoke_r                             202106L
 # define __cpp_lib_is_scoped_enum                       202011L
-# define __cpp_lib_move_iterator_concept                202207L
 // # define __cpp_lib_move_only_function                   202110L
 # undef  __cpp_lib_optional
 # define __cpp_lib_optional                             202110L
diff --git a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_concept_conformance.compile.pass.cpp b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_concept_conformance.compile.pass.cpp
--- a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_concept_conformance.compile.pass.cpp
+++ b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_concept_conformance.compile.pass.cpp
@@ -15,7 +15,7 @@
 #include "test_iterators.h"
 #include "test_macros.h"
 
-#if TEST_STD_VER <= 20
+#if TEST_STD_VER < 20
 
 void test() {
   {
diff --git a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_specializations.pass.cpp b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_specializations.pass.cpp
--- a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_specializations.pass.cpp
+++ b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/iterator_specializations.pass.cpp
@@ -16,7 +16,6 @@
 #include "test_macros.h"
 
 // Tests for move_iterator specializations
-#if TEST_STD_VER > 20
 static_assert(
     std::is_same_v< typename std::move_iterator<forward_iterator<char*>>::iterator_concept, std::forward_iterator_tag>);
 static_assert(std::is_same_v<typename std::move_iterator< bidirectional_iterator<char*>>::iterator_concept,
@@ -27,5 +26,4 @@
                              std::random_access_iterator_tag>);
 static_assert(std::is_same_v<typename std::move_iterator<char*>::iterator_concept, std::random_access_iterator_tag>);
 
-#endif
 int main() {} // COMPILE-ONLY
diff --git a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/types.pass.cpp b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/types.pass.cpp
--- a/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/types.pass.cpp
+++ b/libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/types.pass.cpp
@@ -140,7 +140,7 @@
   }
 #endif
 
-#if TEST_STD_VER > 17 && TEST_STD_VER <= 20 
+#if TEST_STD_VER < 20
   test<contiguous_iterator<char*>>();
   static_assert(
       std::is_same_v<typename std::move_iterator<forward_iterator<char*>>::iterator_concept, std::input_iterator_tag>);