New Features:

• Added support for CSV File connector ​(inbound only). 
• Added support for one- and two-dimensional array data values of primitive or modeled data.
• Added support for multiple inputs, instances and/or outputs for a single flow.
• Added support for adding, removing and listing certificates / keys (via managecerts command file).
• Updated flow trigger expressions to support deadband calculations.
• Updated JavaScript engine (Graal) for compatibility with Java 15.
• Updated Azure Event Hubs connector to support user configurable timeout settings.
• Updated MQTT connector to support:
  • Error messages to include more detailed information
  • Reads (inbound subscriptions)
  • Reading of array values
  • User specified QoS indicator per output
  • User specified certificates
    
  • Wildcard (#) character for an output's topic
    
• Updated MQTT connector and runtime to allow for the use of user specified certificates.
• Updated MQTT Sparkplug connector to support:
  • Arrays
  • Publishing bad quality metrics when input data is not available
  • Wildcard (#) character for both device ID and metrics for inputs and outputs
• Updated OPC UA connector to support:​
  • Sign and encrypt (Basic256Sha256)
  • Username / Password (Basic256)
  • Writing of modeled data. The OPC UA server must support an address space hierarchy that matches the model definition.
• Updated REST connector to support:
  • Formatting published values via templates
  • Reading of array values
• Updated SQL connector to support:
  • Automatic creation of tables 
  • Generic JDBC with user deployed drivers
  • Multi-row reads
  • Stored procedures for outputs
  • Writing _name and _timestamp metadata
  • Writing complex data as a JSON blob
• Generalized read / write error messages across all connectors.

Fixes:

• Fixed MQTT connector Greengrass self-signed certificate validation issue. 
• Fixed OPC UA anonymous policy ID interoperability issue with servers that do not use the “anonymous” string identifier. ​​
• Fixed issue with not automatically starting a flow upon fixing any configuration errors. ​
• Fixed issue with not automatically propagating model changes to enabled flows. 
• Fixed time drift issue around the execution of flows. This was more apparent on a system with high resource utilization. 
• ​Fixed issue where a UI driven read that fails did not generate appropriate log messages to troubleshoot the issue.
• Fixed issue with referencing complex data value element names containing space characters in an expression.
• Fixed OPC UA connector interoperability issues: (a) specifying the correct close secure channel message indicator in a packet, (b) support for message chunking, (c) fixed message buffer size negotiation conflicts, (d) support for expanded node IDs in a browse request, (e) proper inclusion of a KeyUsages field in self signed application instance certificates.
• Fixed issue with incorrectly flagging a modeled instance's expression invalid before attempting to pull in the correct real time data to satisfy the expression.
• Fixed Azure IoT SiteWise connector to ignore null/empty attributes in modeled values.
• Fixed MQTT connector to return the appropriate result code on connection failures.

User Interface Only Updates:

• Allowed viewing the schema of an input in the reference browser.
• Allowed on-demand reads of any input.
• Moved the default location of frontend configuration.json file to /config/settings.json.
• Added warning for users if there is a version mismatch at login page.
• Changed retrieval of the settings.json file to explicitly use no cache.
• Fixed issue in which changing the Group As field for a model or instance may not correctly update.
• Redesigned working with flow sources and Targets.
• Redesigned reference browser to be context sensitive and support multiple object types.