diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -62,7 +62,9 @@
 Non-comprehensive list of changes in this release
 -------------------------------------------------
 
-- ...
+- The default value of _MSC_VER was raised from 1911 to 1914. MSVC 19.14 has the
+  support to overaligned objects on x86_32 which is required for some LLVM 
+  passes.
 
 New Compiler Flags
 ------------------
diff --git a/clang/lib/Driver/ToolChains/MSVC.cpp b/clang/lib/Driver/ToolChains/MSVC.cpp
--- a/clang/lib/Driver/ToolChains/MSVC.cpp
+++ b/clang/lib/Driver/ToolChains/MSVC.cpp
@@ -1337,8 +1337,8 @@
   if (MSVT.empty() &&
       Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
                    IsWindowsMSVC)) {
-    // -fms-compatibility-version=19.11 is default, aka 2017, 15.3
-    MSVT = VersionTuple(19, 11);
+    // -fms-compatibility-version=19.14 is default, aka 2017, 15.7
+    MSVT = VersionTuple(19, 14);
   }
   return MSVT;
 }
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -724,7 +724,7 @@
 
 // Validate that the default triple is used when run an empty tools dir is specified
 // RUN: %clang_cl -vctoolsdir "" -### -- %s 2>&1 | FileCheck %s --check-prefix VCTOOLSDIR
-// VCTOOLSDIR: "-triple" "{{[a-zA-Z0-9_-]*}}-pc-windows-msvc19.11.0"
+// VCTOOLSDIR: "-triple" "{{[a-zA-Z0-9_-]*}}-pc-windows-msvc19.14.0"
 
 // Validate that built-in include paths are based on the supplied path
 // RUN: %clang_cl --target=aarch64-pc-windows-msvc -vctoolsdir "/fake" -winsdkdir "/foo" -winsdkversion 10.0.12345.0 -### -- %s 2>&1 | FileCheck %s --check-prefix FAKEDIR