[docs] update Thread version in NOTICE (#1235)
diff --git a/NOTICE b/NOTICE
index 962490e..94a2d71 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
-OpenThread is an open source implementation of the Thread 1.1.1 Final Specification.
-The Thread 1.1.1 Final Specification is promulgated by the Thread Group. The Thread
+OpenThread is an open source implementation of the Thread 1.2.0 Final Specification.
+The Thread 1.2.0 Final Specification is promulgated by the Thread Group. The Thread
Group is a non-profit organization formed for the purposes of defining one or
more specifications, best practices, reference architectures, implementation
guidelines and certification programs to promote the availability of compliant
@@ -7,10 +7,10 @@
information about the benefits thereof, can be found at http://threadgroup.org.
OpenThread is not affiliated with or endorsed by the Thread Group. Implementation
-of this OpenThread code does not assure compliance with the Thread 1.1.1 Final
+of this OpenThread code does not assure compliance with the Thread 1.2.0 Final
Specification and does not convey the right to identify any final product as Thread
certified. Members of the Thread Group may hold patents and other intellectual
-property rights relating to the Thread 1.1.1 Final Specification, ownership and
+property rights relating to the Thread 1.2.0 Final Specification, ownership and
licenses of which are subject to the Thread Group’s IP Policies, and not this license.
The included copyright to the OpenThread code is subject to the license in the