diff --git a/libcxx/docs/FeatureTestMacroTable.rst b/libcxx/docs/FeatureTestMacroTable.rst
--- a/libcxx/docs/FeatureTestMacroTable.rst
+++ b/libcxx/docs/FeatureTestMacroTable.rst
@@ -192,7 +192,7 @@
     --------------------------------------------------- -----------------
     ``__cpp_lib_bit_cast``                              ``201806L``
     --------------------------------------------------- -----------------
-    ``__cpp_lib_bitops``                                *unimplemented*
+    ``__cpp_lib_bitops``                                ``201907L``
     --------------------------------------------------- -----------------
     ``__cpp_lib_bounded_array_traits``                  ``201902L``
     --------------------------------------------------- -----------------
diff --git a/libcxx/include/version b/libcxx/include/version
--- a/libcxx/include/version
+++ b/libcxx/include/version
@@ -332,7 +332,7 @@
 # endif
 # define __cpp_lib_bind_front                           201907L
 # define __cpp_lib_bit_cast                             201806L
-// # define __cpp_lib_bitops                               201907L
+# define __cpp_lib_bitops                               201907L
 # define __cpp_lib_bounded_array_traits                 201902L
 # if !defined(_LIBCPP_HAS_NO_CHAR8_T)
 #   define __cpp_lib_char8_t                            201907L
diff --git a/libcxx/test/std/language.support/support.limits/support.limits.general/bit.version.compile.pass.cpp b/libcxx/test/std/language.support/support.limits/support.limits.general/bit.version.compile.pass.cpp
--- a/libcxx/test/std/language.support/support.limits/support.limits.general/bit.version.compile.pass.cpp
+++ b/libcxx/test/std/language.support/support.limits/support.limits.general/bit.version.compile.pass.cpp
@@ -101,17 +101,11 @@
 #   error "__cpp_lib_bit_cast should have the value 201806L in c++20"
 # endif
 
-# if !defined(_LIBCPP_VERSION)
-#   ifndef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should be defined in c++20"
-#   endif
-#   if __cpp_lib_bitops != 201907L
-#     error "__cpp_lib_bitops should have the value 201907L in c++20"
-#   endif
-# else // _LIBCPP_VERSION
-#   ifdef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should not be defined because it is unimplemented in libc++!"
-#   endif
+# ifndef __cpp_lib_bitops
+#   error "__cpp_lib_bitops should be defined in c++20"
+# endif
+# if __cpp_lib_bitops != 201907L
+#   error "__cpp_lib_bitops should have the value 201907L in c++20"
 # endif
 
 # ifdef __cpp_lib_byteswap
@@ -141,17 +135,11 @@
 #   error "__cpp_lib_bit_cast should have the value 201806L in c++23"
 # endif
 
-# if !defined(_LIBCPP_VERSION)
-#   ifndef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should be defined in c++23"
-#   endif
-#   if __cpp_lib_bitops != 201907L
-#     error "__cpp_lib_bitops should have the value 201907L in c++23"
-#   endif
-# else // _LIBCPP_VERSION
-#   ifdef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should not be defined because it is unimplemented in libc++!"
-#   endif
+# ifndef __cpp_lib_bitops
+#   error "__cpp_lib_bitops should be defined in c++23"
+# endif
+# if __cpp_lib_bitops != 201907L
+#   error "__cpp_lib_bitops should have the value 201907L in c++23"
 # endif
 
 # ifndef __cpp_lib_byteswap
@@ -184,17 +172,11 @@
 #   error "__cpp_lib_bit_cast should have the value 201806L in c++26"
 # endif
 
-# if !defined(_LIBCPP_VERSION)
-#   ifndef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should be defined in c++26"
-#   endif
-#   if __cpp_lib_bitops != 201907L
-#     error "__cpp_lib_bitops should have the value 201907L in c++26"
-#   endif
-# else // _LIBCPP_VERSION
-#   ifdef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should not be defined because it is unimplemented in libc++!"
-#   endif
+# ifndef __cpp_lib_bitops
+#   error "__cpp_lib_bitops should be defined in c++26"
+# endif
+# if __cpp_lib_bitops != 201907L
+#   error "__cpp_lib_bitops should have the value 201907L in c++26"
 # endif
 
 # ifndef __cpp_lib_byteswap
diff --git a/libcxx/test/std/language.support/support.limits/support.limits.general/version.version.compile.pass.cpp b/libcxx/test/std/language.support/support.limits/support.limits.general/version.version.compile.pass.cpp
--- a/libcxx/test/std/language.support/support.limits/support.limits.general/version.version.compile.pass.cpp
+++ b/libcxx/test/std/language.support/support.limits/support.limits.general/version.version.compile.pass.cpp
@@ -2846,17 +2846,11 @@
 #   error "__cpp_lib_bit_cast should have the value 201806L in c++20"
 # endif
 
-# if !defined(_LIBCPP_VERSION)
-#   ifndef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should be defined in c++20"
-#   endif
-#   if __cpp_lib_bitops != 201907L
-#     error "__cpp_lib_bitops should have the value 201907L in c++20"
-#   endif
-# else // _LIBCPP_VERSION
-#   ifdef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should not be defined because it is unimplemented in libc++!"
-#   endif
+# ifndef __cpp_lib_bitops
+#   error "__cpp_lib_bitops should be defined in c++20"
+# endif
+# if __cpp_lib_bitops != 201907L
+#   error "__cpp_lib_bitops should have the value 201907L in c++20"
 # endif
 
 # ifdef __cpp_lib_bitset
@@ -4127,17 +4121,11 @@
 #   error "__cpp_lib_bit_cast should have the value 201806L in c++23"
 # endif
 
-# if !defined(_LIBCPP_VERSION)
-#   ifndef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should be defined in c++23"
-#   endif
-#   if __cpp_lib_bitops != 201907L
-#     error "__cpp_lib_bitops should have the value 201907L in c++23"
-#   endif
-# else // _LIBCPP_VERSION
-#   ifdef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should not be defined because it is unimplemented in libc++!"
-#   endif
+# ifndef __cpp_lib_bitops
+#   error "__cpp_lib_bitops should be defined in c++23"
+# endif
+# if __cpp_lib_bitops != 201907L
+#   error "__cpp_lib_bitops should have the value 201907L in c++23"
 # endif
 
 # ifdef __cpp_lib_bitset
@@ -5615,17 +5603,11 @@
 #   error "__cpp_lib_bit_cast should have the value 201806L in c++26"
 # endif
 
-# if !defined(_LIBCPP_VERSION)
-#   ifndef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should be defined in c++26"
-#   endif
-#   if __cpp_lib_bitops != 201907L
-#     error "__cpp_lib_bitops should have the value 201907L in c++26"
-#   endif
-# else // _LIBCPP_VERSION
-#   ifdef __cpp_lib_bitops
-#     error "__cpp_lib_bitops should not be defined because it is unimplemented in libc++!"
-#   endif
+# ifndef __cpp_lib_bitops
+#   error "__cpp_lib_bitops should be defined in c++26"
+# endif
+# if __cpp_lib_bitops != 201907L
+#   error "__cpp_lib_bitops should have the value 201907L in c++26"
 # endif
 
 # if !defined(_LIBCPP_VERSION)
diff --git a/libcxx/utils/generate_feature_test_macro_components.py b/libcxx/utils/generate_feature_test_macro_components.py
--- a/libcxx/utils/generate_feature_test_macro_components.py
+++ b/libcxx/utils/generate_feature_test_macro_components.py
@@ -226,7 +226,6 @@
             "name": "__cpp_lib_bitops",
             "values": {"c++20": 201907},
             "headers": ["bit"],
-            "unimplemented": True,
         },
         {
             "name": "__cpp_lib_bitset",