AVEVA Adapter for MQTT 1​.4 release notes

AVEVA Adapter for MQTT 1.4.0.455, released November 2025, is a feature release addressing support for processing non-JSON payloads from generic MQTT data sources along with support for Discovery query filtering enhancements. Release 1.4.0.455 uses version 1.8.3.128 of the Adapter Framework.

For more information on product features and functions, refer to the following sections:

• Prerequisites and system requirements

• Installation/uninstallation instructions

refer to AVEVA Adapter for MQTT.

The latest information about the 1.4 release is available online on the AVEVA Documentation Portal.

New features and enhancements

The following items were added in this release:

• MQTTnet client Library upgraded to version 4.3.7.

• Support for non-JSON payloads (Text, Headerless CSV) in the generic component.

• Discovery query enhancements to support Unit of Measure (UoM) discovery, specifying Max StreamId length, filtering by field names and data types.

• Additional logging enhancements - suppressed unwanted logs.

• WiX Toolset upgraded to version 5 for Windows Installer.

Resolved issues

This section lists items that were resolved in this release:

• The adapter now creates streams when a Sparkplug B Metric of data type 13 (BasicDateTime) is used.

• Fixed the issue where rounding errors could cause failover score to go above 100, preventing the client failover feature from working properly.

• When multiple items of the same type are discovered, the adapter only sends one type create message with the item definition. This is applicable to PI Web API versions before 2023 SP1.

Known issues

There are no known issues in this release.

Security information and guidance

We are committed to releasing secure products. This section is intended to provide relevant security-related information to guide your installation or upgrade decision.

We proactively disclose aggregate information about the number and severity of security vulnerabilities addressed in each release. The tables below provide an overview of security issues addressed and their relative severity based on standard scoring.

Overview of new vulnerabilities - Fixed or Mitigated

This section is intended to provide relevant security-related information to guide your installation or upgrade decision. AVEVA is proactively disclosing aggregate information about the number and severity of AVEVA Adapter for MQTT security vulnerabilities that are fixed in this release.

For this release of AVEVA Adapter for MQTT, the following vulnerabilities have been fixed or mitigated.

Security vulnerabilities fixed in AVEVA Adapter for MQTT 1.4.0.455 release

Vulnerability mitigations in AVEVA Adapter for MQTT 1.4.0.455 release

Distribution kits

AVEVA Adapter for MQTT is supported on a variety of platforms and processors. Install kits are available for the following platforms:

Alternatively, you can use tar.gz files with binaries to build your own custom installers or containers for Linux. For more information on installing the adapter with Docker containers, see Install using Docker.