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-rw-r--r--libraries/libu2f-host/README2
1 files changed, 2 insertions, 0 deletions
diff --git a/libraries/libu2f-host/README b/libraries/libu2f-host/README
index 2673e9fda8..93f786eb3f 100644
--- a/libraries/libu2f-host/README
+++ b/libraries/libu2f-host/README
@@ -2,3 +2,5 @@ Yubico Universal 2nd Factor (U2F) Host C Library
Libu2f-host provide a C library and command-line tool that implements
the host-side of the U2F protocol.
+
+NOTE: Upstream project is deprecated and no longer maintained.