diff --git a/CMakeLists.txt b/CMakeLists.txt
index ba0fd2d106..537656ab11 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,9 +43,6 @@ project(QtBase
     LANGUAGES CXX C ASM
 )
 
-# Make sure we only use latest private CMake API, aka no compatibility wrappers.
-set(QT_NO_INTERNAL_COMPATIBILITY_FUNCTIONS TRUE)
-
 # Make sure we use the fixed BASE argument of qt_add_resource.
 set(QT_USE_FIXED_QT_ADD_RESOURCE_BASE TRUE)
 
diff --git a/cmake/QtBaseGlobalTargets.cmake b/cmake/QtBaseGlobalTargets.cmake
index bfe52ca6d7..17d5cd6c05 100644
--- a/cmake/QtBaseGlobalTargets.cmake
+++ b/cmake/QtBaseGlobalTargets.cmake
@@ -173,7 +173,6 @@ qt_copy_or_install(FILES
                    cmake/QtBuildInformation.cmake
                    cmake/QtCMakeHelpers.cmake
                    cmake/QtCMakeVersionHelpers.cmake
-                   cmake/QtCompatibilityHelpers.cmake
                    cmake/QtCompilerFlags.cmake
                    cmake/QtCompilerOptimization.cmake
                    cmake/QtConfigDependencies.cmake.in
diff --git a/cmake/QtBuild.cmake b/cmake/QtBuild.cmake
index 49c874575c..bb8b14658a 100644
--- a/cmake/QtBuild.cmake
+++ b/cmake/QtBuild.cmake
@@ -512,7 +512,6 @@ include(Qt3rdPartyLibraryHelpers)
 include(QtAppHelpers)
 include(QtAutogenHelpers)
 include(QtCMakeHelpers)
-include(QtCompatibilityHelpers)
 include(QtDeferredDependenciesHelpers)
 include(QtDbusHelpers)
 include(QtDocsHelpers)
diff --git a/cmake/QtCompatibilityHelpers.cmake b/cmake/QtCompatibilityHelpers.cmake
deleted file mode 100644
index 89e23f498f..0000000000
--- a/cmake/QtCompatibilityHelpers.cmake
+++ /dev/null
@@ -1,112 +0,0 @@
-if(NOT QT_NO_INTERNAL_COMPATIBILITY_FUNCTIONS)
-    # Compatibility functions that should be removed once all their usages are removed.
-    function(extend_target)
-        qt_extend_target(${ARGV})
-    endfunction()
-
-    function(add_qt_module)
-        qt_add_module(${ARGV})
-    endfunction()
-
-    function(add_qt_plugin)
-        qt_add_plugin(${ARGV})
-    endfunction()
-
-    function(add_qt_tool)
-        qt_add_tool(${ARGV})
-    endfunction()
-
-    function(add_qt_test)
-        qt_add_test(${ARGV})
-    endfunction()
-
-    function(add_qt_test_helper)
-        qt_add_test_helper(${ARGV})
-    endfunction()
-
-    function(add_qt_manual_test)
-        qt_add_manual_test(${ARGV})
-    endfunction()
-
-    function(add_qt_benchmark)
-        qt_add_benchmark(${ARGV})
-    endfunction()
-
-    function(add_qt_executable)
-        qt_add_executable(${ARGV})
-    endfunction()
-
-    function(add_qt_simd_part)
-        qt_add_simd_part(${ARGV})
-    endfunction()
-
-    function(add_qt_docs)
-        qt_add_docs(${ARGV})
-    endfunction()
-
-    function(add_qt_resource)
-        qt_add_resource(${ARGV})
-    endfunction()
-
-    function(add_cmake_library)
-        qt_add_cmake_library(${ARGV})
-    endfunction()
-
-
-    # New compatibility functions that should be removed before release.
-    function(qt_extend_target)
-        qt_internal_extend_target(${ARGV})
-    endfunction()
-
-    function(qt_add_module)
-        qt_internal_add_module(${ARGV})
-    endfunction()
-
-    function(qt_add_tool)
-        qt_internal_add_tool(${ARGV})
-    endfunction()
-
-    function(qt_add_test)
-        qt_internal_add_test(${ARGV})
-    endfunction()
-
-    function(qt_add_test_helper)
-        qt_internal_add_test_helper(${ARGV})
-    endfunction()
-
-    function(qt_add_manual_test)
-        qt_internal_add_manual_test(${ARGV})
-    endfunction()
-
-    function(qt_add_benchmark)
-        qt_internal_add_benchmark(${ARGV})
-    endfunction()
-
-    function(qt_add_executable)
-        qt_internal_add_executable(${ARGV})
-    endfunction()
-
-    function(qt_add_simd_part)
-        qt_internal_add_simd_part(${ARGV})
-    endfunction()
-
-    function(qt_add_docs)
-        qt_internal_add_docs(${ARGV})
-    endfunction()
-
-    function(qt_add_resource)
-        qt_internal_add_resource(${ARGV})
-    endfunction()
-
-    function(qt_add_cmake_library)
-        qt_internal_add_cmake_library(${ARGV})
-    endfunction()
-
-    function(qt_add_3rdparty_library)
-        qt_internal_add_3rdparty_library(${ARGV})
-    endfunction()
-
-    function(qt_create_tracepoints)
-        qt_internal_create_tracepoints(${ARGV})
-    endfunction()
-endif()
diff --git a/tests/auto/cmake/mockplugins/CMakeLists.txt b/tests/auto/cmake/mockplugins/CMakeLists.txt
index c536cc3f09..5b72184b0f 100644
--- a/tests/auto/cmake/mockplugins/CMakeLists.txt
+++ b/tests/auto/cmake/mockplugins/CMakeLists.txt
@@ -10,9 +10,6 @@ project(QtMockPlugins
     LANGUAGES CXX C
 )
 
-# Make sure we only use latest private CMake API, aka no compatibility wrappers.
-set(QT_NO_INTERNAL_COMPATIBILITY_FUNCTIONS TRUE)
-
 find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS BuildInternals Core)
 find_package(Qt6 ${PROJECT_VERSION} QUIET CONFIG OPTIONAL_COMPONENTS Gui Widgets Xml)