diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fff1e3534..9042b1f17 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,8 +23,8 @@ env:
   WINE_URL: https://github.com/3Shain/wine/releases/download/v8.16-3shain/wine.tar.gz
   WINE_ARM64EC_VERSION: wine-11.2
   WINE_ARM64EC_URL: https://github.com/3Shain/wine/releases/download/wine-11.2/wine-11.2.tar.gz
-  LLVM_MINGW_VERSION: "20251216"
-  LLVM_MINGW_DIR: llvm-mingw-20251216-ucrt-macos-universal
+  LLVM_MINGW_VERSION: "20260908"
+  LLVM_MINGW_DIR: llvm-mingw-20260908-ucrt-macos-universal
 
 jobs:
   setup-wine:
diff --git a/build-arm64ec.txt b/build-arm64ec.txt
index bc8462f47..e9ac3b47d 100644
--- a/build-arm64ec.txt
+++ b/build-arm64ec.txt
@@ -8,6 +8,12 @@ windres = 'arm64ec-w64-mingw32-windres'
 [properties]
 needs_exe_wrapper = true
 
+[built-in options]
+c_args = ['-marm64x']
+cpp_args = ['-marm64x']
+c_link_args = ['-marm64x']
+cpp_link_args = ['-marm64x']
+
 [host_machine]
 system = 'windows'
 cpu_family = 'aarch64'
diff --git a/src/d3d11/d3d11_swapchain.cpp b/src/d3d11/d3d11_swapchain.cpp
index 5e9404d3f..d1825876c 100644
--- a/src/d3d11/d3d11_swapchain.cpp
+++ b/src/d3d11/d3d11_swapchain.cpp
@@ -17,6 +17,7 @@
 #include "util_env.hpp"
 #include "util_string.hpp"
 #include "util_win32_compat.h"
+#include "util_hotpatch.h"
 #include "wsi_monitor.hpp"
 #include "wsi_platform_win32.hpp"
 #include "wsi_window.hpp"
@@ -242,6 +243,7 @@ class MTLD3D11SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return factory_->QueryInterface(riid, parent);
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   Present(UINT sync_interval, UINT flags) final {
@@ -259,6 +261,7 @@ class MTLD3D11SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     }
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   SetFullscreenState(BOOL Fullscreen, IDXGIOutput *pTarget) final {
@@ -472,6 +475,7 @@ class MTLD3D11SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return S_OK;
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   ResizeBuffers(UINT BufferCount, UINT Width, UINT Height, DXGI_FORMAT Format,
@@ -534,6 +538,7 @@ class MTLD3D11SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return S_OK;
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   ResizeTarget(const DXGI_MODE_DESC *pDesc) final {
@@ -727,6 +732,7 @@ class MTLD3D11SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return SyncFrameState();
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   Present1(UINT SyncInterval, UINT PresentFlags,
@@ -1012,6 +1018,7 @@ class MTLD3D11SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return 0;
   }
 
+  DXMT_HOTPATCHABLE
   HRESULT STDMETHODCALLTYPE ResizeBuffers1(UINT BufferCount, UINT Width, UINT Height,
                          DXGI_FORMAT Format, UINT SwapChainFlags,
                          const UINT *pCreationNodeMask,
diff --git a/src/d3d12/d3d12_swapchain.cpp b/src/d3d12/d3d12_swapchain.cpp
index fea37b939..080fff1c6 100644
--- a/src/d3d12/d3d12_swapchain.cpp
+++ b/src/d3d12/d3d12_swapchain.cpp
@@ -25,6 +25,7 @@
 #include "com/com_pointer.hpp"
 #include "log/log.hpp"
 #include "wsi_window.hpp"
+#include "util_hotpatch.h"
 #include "config/config.hpp"
 #include <cfloat>
 
@@ -261,6 +262,7 @@ class MTLD3D12SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return factory_->QueryInterface(riid, parent);
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   Present(UINT sync_interval, UINT flags) final {
@@ -275,6 +277,7 @@ class MTLD3D12SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return backbuffers_[Buffer]->QueryInterface(riid, ppSurface);
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   SetFullscreenState(BOOL Fullscreen, IDXGIOutput *pTarget) final {
@@ -486,6 +489,7 @@ class MTLD3D12SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return S_OK;
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   ResizeBuffers(UINT BufferCount, UINT Width, UINT Height, DXGI_FORMAT Format, UINT flags) final {
@@ -535,6 +539,7 @@ class MTLD3D12SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return S_OK;
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   ResizeTarget(const DXGI_MODE_DESC *pDesc) final {
@@ -694,6 +699,7 @@ class MTLD3D12SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return E_NOTIMPL;
   };
 
+  DXMT_HOTPATCHABLE
   HRESULT
   STDMETHODCALLTYPE
   Present1(UINT SyncInterval, UINT PresentFlags, const DXGI_PRESENT_PARAMETERS *pPresentParameters) final {
@@ -825,6 +831,7 @@ class MTLD3D12SwapChain final : public MTLDXGISubObject<IDXGISwapChain4, MTLD3D1
     return presentation_count_ % backbuffers_.size();
   }
 
+  DXMT_HOTPATCHABLE
   HRESULT STDMETHODCALLTYPE
   ResizeBuffers1(
       UINT BufferCount, UINT Width, UINT Height, DXGI_FORMAT Format, UINT SwapChainFlags, const UINT *pCreationNodeMask,
diff --git a/src/dxgi/dxgi_factory.cpp b/src/dxgi/dxgi_factory.cpp
index 99a3f90a1..18956a5cb 100644
--- a/src/dxgi/dxgi_factory.cpp
+++ b/src/dxgi/dxgi_factory.cpp
@@ -4,6 +4,7 @@
 #include "dxgi_object.hpp"
 #include "com/com_guid.hpp"
 #include "log/log.hpp"
+#include "util_hotpatch.h"
 #include "util_string.hpp"
 #include "wsi_window.hpp"
 #include "Metal.hpp"
@@ -64,6 +65,7 @@ class MTLDXGIFactory : public MTLDXGIObject<IDXGIFactory6> {
     return DXGI_ERROR_UNSUPPORTED;
   }
 
+  DXMT_HOTPATCHABLE
   HRESULT STDMETHODCALLTYPE
   CreateSwapChain(IUnknown *pDevice, DXGI_SWAP_CHAIN_DESC *pDesc,
                   IDXGISwapChain **ppSwapChain) final {
@@ -97,6 +99,7 @@ class MTLDXGIFactory : public MTLDXGIObject<IDXGIFactory6> {
     return hr;
   }
 
+  DXMT_HOTPATCHABLE
   HRESULT STDMETHODCALLTYPE CreateSwapChainForHwnd(
       IUnknown *pDevice, HWND hWnd, const DXGI_SWAP_CHAIN_DESC1 *pDesc,
       const DXGI_SWAP_CHAIN_FULLSCREEN_DESC *pFullscreenDesc,
@@ -135,6 +138,7 @@ class MTLDXGIFactory : public MTLDXGIObject<IDXGIFactory6> {
                                               ppSwapChain);
   }
 
+  DXMT_HOTPATCHABLE
   HRESULT STDMETHODCALLTYPE CreateSwapChainForCoreWindow(
       IUnknown *pDevice, IUnknown *pWindow, const DXGI_SWAP_CHAIN_DESC1 *pDesc,
       IDXGIOutput *pRestrictToOutput, IDXGISwapChain1 **ppSwapChain) final {
@@ -144,6 +148,7 @@ class MTLDXGIFactory : public MTLDXGIObject<IDXGIFactory6> {
     return E_NOTIMPL;
   }
 
+  DXMT_HOTPATCHABLE
   HRESULT STDMETHODCALLTYPE CreateSwapChainForComposition(
       IUnknown *pDevice, const DXGI_SWAP_CHAIN_DESC1 *pDesc,
       IDXGIOutput *pRestrictToOutput, IDXGISwapChain1 **ppSwapChain) final {
diff --git a/src/util/util_hotpatch.h b/src/util/util_hotpatch.h
new file mode 100644
index 000000000..c81ee7faa
--- /dev/null
+++ b/src/util/util_hotpatch.h
@@ -0,0 +1,17 @@
+/*
+ * Derived from DXVK (originally under zlib License)
+ *
+ * See
+ * <https://github.com/doitsujin/dxvk/blob/8c4fd2723c031b425fb857454e9e5fa4ca25f4ac/src/util/util_hotpatch.h>
+ * See <https://github.com/doitsujin/dxvk/blob/master/LICENSE>
+ */
+
+#pragma once
+
+#if defined(DECLSPEC_CHPE_PATCHABLE)
+#define DXMT_HOTPATCHABLE DECLSPEC_CHPE_PATCHABLE
+#elif defined(__arm64ec__)
+#define DXMT_HOTPATCHABLE __attribute__((hybrid_patchable))
+#else
+#define DXMT_HOTPATCHABLE
+#endif
\ No newline at end of file
diff --git a/tests/dx11/stb_image.h b/tests/dx11/stb_image.h
index 8879e981b..f1ce952e6 100644
--- a/tests/dx11/stb_image.h
+++ b/tests/dx11/stb_image.h
@@ -208,6 +208,7 @@ RECENT REVISION HISTORY:
 // you have issues compiling it, you can disable it entirely by
 // defining STBI_NO_SIMD.
 //
+#define STBI_NO_SIMD
 // ===========================================================================
 //
 // HDR image support   (disable by defining STBI_NO_HDR)