diff --git a/vulkan/libvulkan/driver.cpp b/vulkan/libvulkan/driver.cpp
index 01436db..7d0f545 100644
--- a/vulkan/libvulkan/driver.cpp
+++ b/vulkan/libvulkan/driver.cpp
@@ -398,7 +398,7 @@
                                      const VkAllocationCallbacks& allocator)
     : is_instance_(true),
       allocator_(allocator),
-      loader_api_version_(VK_API_VERSION_1_3),
+      loader_api_version_(flags::vulkan_1_4_instance_api() ? VK_API_VERSION_1_4 : VK_API_VERSION_1_3),
       icd_api_version_(icd_api_version),
       physical_dev_(VK_NULL_HANDLE),
       instance_info_(create_info),
@@ -410,7 +410,7 @@
                                      const VkAllocationCallbacks& allocator)
     : is_instance_(false),
       allocator_(allocator),
-      loader_api_version_(VK_API_VERSION_1_3),
+      loader_api_version_(flags::vulkan_1_4_instance_api() ? VK_API_VERSION_1_4 : VK_API_VERSION_1_3),
       icd_api_version_(icd_api_version),
       physical_dev_(physical_dev),
       dev_info_(create_info),
@@ -552,6 +552,10 @@
         is_instance_ ? loader_api_version_
                      : std::min(icd_api_version_, loader_api_version_);
     switch (api_version) {
+        case VK_API_VERSION_1_4:
+            hook_extensions_.set(ProcHook::EXTENSION_CORE_1_4);
+            hal_extensions_.set(ProcHook::EXTENSION_CORE_1_4);
+            [[clang::fallthrough]];
         case VK_API_VERSION_1_3:
             hook_extensions_.set(ProcHook::EXTENSION_CORE_1_3);
             hal_extensions_.set(ProcHook::EXTENSION_CORE_1_3);
@@ -701,6 +705,7 @@
             case ProcHook::EXTENSION_CORE_1_1:
             case ProcHook::EXTENSION_CORE_1_2:
             case ProcHook::EXTENSION_CORE_1_3:
+            case ProcHook::EXTENSION_CORE_1_4:
             case ProcHook::EXTENSION_COUNT:
                 // Device and meta extensions. If we ever get here it's a bug in
                 // our code. But enumerating them lets us avoid having a default
@@ -766,6 +771,7 @@
             case ProcHook::EXTENSION_CORE_1_1:
             case ProcHook::EXTENSION_CORE_1_2:
             case ProcHook::EXTENSION_CORE_1_3:
+            case ProcHook::EXTENSION_CORE_1_4:
             case ProcHook::EXTENSION_COUNT:
                 // Instance and meta extensions. If we ever get here it's a bug
                 // in our code. But enumerating them lets us avoid having a