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-rw-r--r--examples/using_union_messages/README.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/examples/using_union_messages/README.txt b/examples/using_union_messages/README.txt
index 7a1e75d..d4b7fd2 100644
--- a/examples/using_union_messages/README.txt
+++ b/examples/using_union_messages/README.txt
@@ -17,6 +17,9 @@ we actually want. Similarly when decoding, we can manually read the tag of
the top level message, and only then allocate the memory for the submessage
after we already know its type.
+NOTE: There is a newer protobuf feature called `oneof` that is also supported
+by nanopb. It might be a better option for new code.
+
Example usage
-------------