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Version: 4.6

Release notes

4.6.0​

Highlights
  • New feature: Time export using NTP
  • New feature: File Transfer service can now be configured not to overwrite existing files on the destination file server.

Summary​

The DD Engine v4.6.0 release includes new functionality such as NTP export. In addition to this, configurable overwrite has been added to the File Transfer service and third-party dependencies have been updated across the entire system.

Components​

The DD Engine release includes the following components:

  • DD Engine firmware:
    • Installer
    • Upgrade
  • Services:
    • File Transfer
      • SFTP
      • SMB
      • NFS
    • HTTP
    • MQTT
    • OPC UA
    • TCP
    • UDP

DD Engine firmware​

New features​

The following new feature is included in this release:

  • Time export using NTP.
    • The Downstream side of the system can now be configured to act as an NTP server, exporting time to clients on either the Admin or Data networks.

Improvements​

The following improvements are included in this release:

  • A new parameter called Step threshold has been added when configuring NTP import.
    • The parameter controls at which time difference, compared to the remote NTP server, the system will step instead of slew the system clock to the correct time.
  • The layout of the Configuration and Settings pages has been changed.
    • The Configuration page now consists of three sub-pages: Services, Features and Device Metadata.
    • The service management section has been moved from the Settings page to the Service Configuration page.
  • Updated third-party dependencies.

Known issues​

The following issues are knowingly included in the release:

  • When configuring NTP import or remote logging using the DATA interface, it is not possible to use hostnames in the address fields, even if DNS has been configured for the DATA interface.
  • When remote logging is configured to use TLS, it is not possible to connect to a remote log server using IP address as the configured address, which in turn presents a certificate with its IP in the Subject Alternative Name field.
  • It is not possible to upgrade from a version prior to 4.2.0 to 4.5.0 on a device which has an invalid hostname configured. Doing so will cause the firmware upgrade to be aborted and rolled back to the previously installed version.
    • A valid hostname may contain alphanumeric characters (a-z and 0-9), dot (.) and dash (-). The hostname may be up to 64 characters in length.

File Transfer​

New features​

The following new feature is included in this release:

  • A new parameter called Overwrite has been added to the Downstream configuration of the File Transfer service.
    • The parameter controls if the service should overwrite existing files on the destination file server, or whether a numbered suffix should be added to the uploaded file’s name instead.

Improvements​

The following improvements are included in this release:

  • Updated third-party dependencies.

HTTP​

Improvements​

The following improvements are included in this release:

  • Updated third-party dependencies.

Known issues​

The following issues are knowingly included in the release:

  • The periodic metric log event in the Upstream service always reports 0 bytes transferred, regardless of the number of transferred requests.

MQTT​

Improvements​

The following improvements are included in this release:

  • Updated third-party dependencies.

OPC UA​

Improvements​

The following improvements are included in this release:

  • Updated third-party dependencies.

TCP​

Improvements​

The following improvements are included in this release:

  • Updated third-party dependencies.

UDP​

Improvements​

The following improvements are included in this release:

  • Updated third-party dependencies.
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