diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 19086ce344809..eab2a367f2624 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -27,6 +27,9 @@ jobs:
           - CC: vs2022
             CXX: vs2022
             os: windows-2022
+          - CC: vs2026
+            CXX: vs2026
+            os: windows-2025-vs2026
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }} ${{ matrix.CXX }}
     env:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 39b7dfaf3b30c..1319452533284 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -84,6 +84,22 @@ jobs:
             vcpkgarch: x64-windows
             vcpkglibdir: lib
             vcpkgpackages: '"openssl", "xerces-c", "zlib"'
+          - name: VS2026Debug64
+            vmimage: windows-2025-vs2026
+            mpctype: vs2026
+            BuildPlatform: x64
+            BuildConfiguration: Debug
+            vcpkgarch: x64-windows
+            vcpkglibdir: debug/lib
+            vcpkgpackages: '"openssl", "xerces-c", "zlib"'
+          - name: VS2026Release64
+            vmimage: windows-2025-vs2026
+            mpctype: vs2026
+            BuildPlatform: x64
+            BuildConfiguration: Release
+            vcpkgarch: x64-windows
+            vcpkglibdir: lib
+            vcpkgpackages: '"openssl", "xerces-c", "zlib"'
     runs-on: ${{ matrix.vmimage }}
     name: ${{ matrix.name }}
     env:
diff --git a/ACE/NEWS b/ACE/NEWS
index f5345bcbc01ef..bb86f85a9c6b8 100644
--- a/ACE/NEWS
+++ b/ACE/NEWS
@@ -1,6 +1,8 @@
 USER VISIBLE CHANGES BETWEEN ACE-8.0.5 and ACE-8.0.6
 ====================================================
 
+. Added support for Visual Studio 2026
+
 . Support floating-point-based `std::chrono::duration` in `ACE_Time_Value`
 
 . Don't disable inlining in a debug build with Embarcadero C++ Builder compilers
diff --git a/ACE/ace/config-win32-msvc-145.h b/ACE/ace/config-win32-msvc-145.h
new file mode 100644
index 0000000000000..9d562fcb22285
--- /dev/null
+++ b/ACE/ace/config-win32-msvc-145.h
@@ -0,0 +1,29 @@
+/* -*- C++ -*- */
+//=============================================================================
+/**
+ *  @file   config-win32-msvc-145.h
+ *
+ *  @brief  Microsoft Visual C++ 14.5 configuration file.
+ *
+ *  This file is the ACE configuration file for Microsoft Visual C++ 14.5 (as released with Visual Studio 2026).
+ *
+ *  @note Do not include this file directly, include config-win32.h instead.
+ */
+//=============================================================================
+
+#ifndef ACE_CONFIG_WIN32_MSVC_145_H
+#define ACE_CONFIG_WIN32_MSVC_145_H
+#include /**/ "ace/pre.h"
+
+#ifndef ACE_CONFIG_WIN32_H
+#error Use config-win32.h in config.h instead of this header
+#endif /* ACE_CONFIG_WIN32_H */
+
+#ifndef ACE_WIN32_VC145
+#  define ACE_WIN32_VC145
+#endif
+
+#include "ace/config-win32-msvc-143.h"
+
+#include /**/ "ace/post.h"
+#endif /* ACE_CONFIG_WIN32_MSVC_145_H */
diff --git a/ACE/ace/config-win32-msvc.h b/ACE/ace/config-win32-msvc.h
index 0c165282284d2..d9321572d52fd 100644
--- a/ACE/ace/config-win32-msvc.h
+++ b/ACE/ace/config-win32-msvc.h
@@ -33,7 +33,9 @@
 #  define ACE_ENDTHREADEX(STATUS) ::_endthreadex ((DWORD) STATUS)
 
 //FUZZ: disable check_for_msc_ver
-#if (_MSC_VER >= 1930)
+#if (_MSC_VER >= 1950)
+# include "ace/config-win32-msvc-145.h"
+#elif (_MSC_VER >= 1930)
 # include "ace/config-win32-msvc-143.h"
 #elif (_MSC_VER >= 1920)
 # include "ace/config-win32-msvc-142.h"
diff --git a/ACE/bin/MakeProjectCreator/config/vs2026.features b/ACE/bin/MakeProjectCreator/config/vs2026.features
new file mode 100644
index 0000000000000..ef60921945659
--- /dev/null
+++ b/ACE/bin/MakeProjectCreator/config/vs2026.features
@@ -0,0 +1,4 @@
+ssl=0
+qos=1
+rwho=0
+sctp=0
diff --git a/ACE/bin/MakeProjectCreator/config/vs2026nmake.mpb b/ACE/bin/MakeProjectCreator/config/vs2026nmake.mpb
new file mode 100644
index 0000000000000..a2de3923249a0
--- /dev/null
+++ b/ACE/bin/MakeProjectCreator/config/vs2026nmake.mpb
@@ -0,0 +1,30 @@
+// -*- MPC -*-
+feature (nmake_avoid_Wp64) {
+  specific(nmake) {
+    add_compile -= /Wp64
+  }
+}
+
+feature (nmake_avoid_Gm) {
+  specific(nmake) {
+    compile_flags -= /Gm
+  }
+}
+
+feature(vc_avoid_hides_local_declaration) {
+  specific(nmake) {
+    DisableSpecificWarnings += 4456
+  }
+}
+
+feature(vc_avoid_hides_global_declaration) {
+  specific(nmake) {
+    DisableSpecificWarnings += 4459
+  }
+}
+
+feature(vc_avoid_hides_class_member) {
+  specific(nmake) {
+    DisableSpecificWarnings += 4458
+  }
+}