Update version numbers, guids and readme for M59 6.8.0

chkuang-g · a-maurice · commit be6816e43e19 · 2019-12-03T13:42:33.000-08:00
PiperOrigin-RevId: 281640765
diff --git a/cpp_sdk_version.json b/cpp_sdk_version.json
@@ -1,5 +1,5 @@
 {
-  "released": "6.7.0",
-  "stable": "6.7.0",
-  "head": "6.7.0"
+  "released": "6.8.0",
+  "stable": "6.8.0",
+  "head": "6.8.0"
 }
