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+Overview of changes in OpcUa plugin:
+
+Version 0.0.1:
+
+* initial implementation without security
+
+Version 1.0.0:
+
+* released implementation that works for OPC UA V1.0.
+ - The protocol is not compatible to the previous version.
+ Transport-layer, security-layer as well as the application-layer
+ data types have changed.
+ - This implementation is compliant to
+ "OPC UA Part 6 - Mappings 1.00 Specification"
+ - The security-layer is always present, but this plugin can only
+ decode communication with security policy
+ http://opcfoundation.org/UA/SecurityPolicy#None, which means
+ that neither encryption nor signing is active.
+