From 72717f517876dbb6938a8c2b1820b520fb397c6c Mon Sep 17 00:00:00 2001
From: Yakun Xu <xyk@google.com>
Date: Fri, 29 May 2020 13:01:33 +0800
Subject: [PATCH] [api] add a monotonic version number (#5012)

---
 include/openthread/instance.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/openthread/instance.h b/include/openthread/instance.h
index 4f69083f6..d32eb65d8 100644
--- a/include/openthread/instance.h
+++ b/include/openthread/instance.h
@@ -45,6 +45,16 @@
 extern "C" {
 #endif
 
+/**
+ * The OpenThread API monotonic version number.
+ *
+ * This number MUST increase by one each time the contents of public OpenThread API include headers change.
+ *
+ * @note This number versions both OpenThread platform and user APIs.
+ *
+ */
+#define OPENTHREAD_API_VERSION (1)
+
 /**
  * @addtogroup api-instance
  *