diff --git a/.cmake.conf b/.cmake.conf
index db00e6c0f09..e1e19d2ed2a 100644
--- a/.cmake.conf
+++ b/.cmake.conf
@@ -49,16 +49,16 @@ set(QT_MAX_NEW_POLICY_CMAKE_VERSION_QT_APPLE "3.21")
 
 # Apple version constraints. Used when building Qt and documentation
 set(QT_SUPPORTED_MIN_MACOS_SDK_VERSION "14")
-set(QT_SUPPORTED_MAX_MACOS_SDK_VERSION "15")
+set(QT_SUPPORTED_MAX_MACOS_SDK_VERSION "26")
 set(QT_SUPPORTED_MIN_MACOS_XCODE_VERSION "15")
 set(QT_SUPPORTED_MIN_MACOS_VERSION "13")
-set(QT_SUPPORTED_MAX_MACOS_VERSION_TESTED "15")
+set(QT_SUPPORTED_MAX_MACOS_VERSION_TESTED "26")
 
 set(QT_SUPPORTED_MIN_IOS_SDK_VERSION "17")
-set(QT_SUPPORTED_MAX_IOS_SDK_VERSION "18")
+set(QT_SUPPORTED_MAX_IOS_SDK_VERSION "26")
 set(QT_SUPPORTED_MIN_IOS_XCODE_VERSION "15")
 set(QT_SUPPORTED_MIN_IOS_VERSION "17")
-set(QT_SUPPORTED_MAX_IOS_VERSION_TESTED "18")
+set(QT_SUPPORTED_MAX_IOS_VERSION_TESTED "26")
 
 set(QT_SUPPORTED_MIN_VISIONOS_SDK_VERSION "2")
 set(QT_SUPPORTED_MAX_VISIONOS_SDK_VERSION "2")