diff --git a/utils/unittest/googlemock/README.LLVM b/utils/unittest/googlemock/README.LLVM
index 22388409c9b..dbeb4af08e9 100644
--- a/utils/unittest/googlemock/README.LLVM
+++ b/utils/unittest/googlemock/README.LLVM
@@ -1,7 +1,7 @@
 LLVM notes
 ----------
 
-This directory contains the 'googlemock' component of Google Test 1.8.1, with
+This directory contains the 'googlemock' component of Google Test 1.10.0, with
 all elements removed except for the actual source code, to minimize the
 addition to the LLVM distribution.
 
@@ -15,3 +15,8 @@ $ rm -f src/gmock_main.cc
 
 # Put the license in the consistent place for LLVM.
 $ mv LICENSE LICENSE.TXT
+
+Modified as follows:
+* Support for std::begin/std::end in gmock-matchers.h
+* IWYU pragmas
+* Disabled -Wdeprecated-copy for clang
diff --git a/utils/unittest/googletest/README.LLVM b/utils/unittest/googletest/README.LLVM
index c5fd5b27f63..fea59e5e068 100644
--- a/utils/unittest/googletest/README.LLVM
+++ b/utils/unittest/googletest/README.LLVM
@@ -1,7 +1,7 @@
 LLVM notes
 ----------
 
-This directory contains Google Test 1.8.1, with all elements removed except for
+This directory contains Google Test 1.10.0, with all elements removed except for
 the actual source code, to minimize the addition to the LLVM distribution.
 
 Cleaned up as follows:
@@ -18,3 +18,4 @@ $ mv LICENSE LICENSE.TXT
 Modified as follows:
 * Added support for NetBSD, Minix and Haiku.
 * Added raw_os_ostream support to include/gtest/internal/custom/gtest-printers.h.
+* Added StringRef support to include/gtest/internal/custom/gtest-printers.h.