diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 8b2d378..7b8d4cf9 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -32,7 +32,7 @@
  * compatible, thus CINDEX_VERSION_MAJOR is expected to remain stable.
  */
 #define CINDEX_VERSION_MAJOR 0
-#define CINDEX_VERSION_MINOR 27
+#define CINDEX_VERSION_MINOR 28
 
 #define CINDEX_VERSION_ENCODE(major, minor) ( \
       ((major) * 10000)                       \
@@ -336,6 +336,12 @@
                                     const char *file_name);
 
 /**
+ * \brief Returns non-zero if the \c file1 and \c file2 point to the same file,
+ * or they are both NULL.
+ */
+CINDEX_LINKAGE int clang_File_isEqual(CXFile file1, CXFile file2);
+
+/**
  * @}
  */