Index: lib/Format/Format.cpp
===================================================================
--- lib/Format/Format.cpp
+++ lib/Format/Format.cpp
@@ -784,6 +784,7 @@
   GoogleStyle.IncludeStyle.IncludeCategories = {
       {"^<ext/.*\\.h>", 2}, {"^<.*\\.h>", 1}, {"^<.*", 2}, {".*", 3}};
   GoogleStyle.IncludeStyle.IncludeIsMainRegex = "([-_](test|unittest))?$";
+  GoogleStyle.IncludeStyle.IncludeBlocks = tooling::IncludeStyle::IBS_Regroup;
   GoogleStyle.IndentCaseLabels = true;
   GoogleStyle.KeepEmptyLinesAtTheStartOfBlocks = false;
   GoogleStyle.ObjCBinPackProtocolList = FormatStyle::BPS_Never;
Index: unittests/Format/CleanupTest.cpp
===================================================================
--- unittests/Format/CleanupTest.cpp
+++ unittests/Format/CleanupTest.cpp
@@ -420,8 +420,10 @@
 TEST_F(CleanUpReplacementsTest, InsertMultipleNewHeadersAndSortGoogle) {
   std::string Code = "\nint x;";
   std::string Expected = "\n#include \"fix.h\"\n"
+                         "\n"
                          "#include <list>\n"
                          "#include <vector>\n"
+                         "\n"
                          "#include \"a.h\"\n"
                          "#include \"b.h\"\n"
                          "#include \"c.h\"\n"
Index: unittests/Format/SortIncludesTest.cpp
===================================================================
--- unittests/Format/SortIncludesTest.cpp
+++ unittests/Format/SortIncludesTest.cpp
@@ -262,9 +262,13 @@
 TEST_F(SortIncludesTest, HandlesAngledIncludesAsSeparateBlocks) {
   EXPECT_EQ("#include \"a.h\"\n"
             "#include \"c.h\"\n"
+            "#include <array>\n"
             "#include <b.h>\n"
-            "#include <d.h>\n",
-            sort("#include <d.h>\n"
+            "#include <d.h>\n"
+            "#include <vector>\n",
+            sort("#include <vector>\n"
+                 "#include <d.h>\n"
+                 "#include <array>\n"
                  "#include <b.h>\n"
                  "#include \"c.h\"\n"
                  "#include \"a.h\"\n"));
@@ -272,9 +276,15 @@
   FmtStyle = getGoogleStyle(FormatStyle::LK_Cpp);
   EXPECT_EQ("#include <b.h>\n"
             "#include <d.h>\n"
+            "\n"
+            "#include <array>\n"
+            "#include <vector>\n"
+            "\n"
             "#include \"a.h\"\n"
             "#include \"c.h\"\n",
-            sort("#include <d.h>\n"
+            sort("#include <vector>\n"
+                 "#include <d.h>\n"
+                 "#include <array>\n"
                  "#include <b.h>\n"
                  "#include \"c.h\"\n"
                  "#include \"a.h\"\n"));