PI System Connector 2.5.4 release notes

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Last UpdatedNov 07, 2025
2 minute read

PI System Connector 2.5.4, released November 2025, is a patch release addressing minor bug fixes.

For more information on product features and functions, including:

Prerequisites and system requirements
Installation/uninstallation instructions

refer to PI System Connector.

The latest information about the 2.5.4 release is available online on the AVEVA Documentation Portal.

New features and enhancements

There are no new features or enhancements in this release.

Resolved issues

Work Items	Description
123930	When infrequently changing data was sent using history recovery, occasionally the connector would get permanently stuck sending that data. This issue has been resolved. Additionally, the connector would sometimes send an extra value on initial backfill rounds and result in a 109 (duplicate value at timestamp) error.
125132	When the source PI System includes string PI Points that contain digital values, those digital values would be lost upon transfer to the destination PI System

Work Items

Description

123930

When infrequently changing data was sent using history recovery, occasionally the connector would get permanently stuck sending that data. This issue has been resolved.

Additionally, the connector would sometimes send an extra value on initial backfill rounds and result in a 109 (duplicate value at timestamp) error.

125132

When the source PI System includes string PI Points that contain digital values, those digital values would be lost upon transfer to the destination PI System

Known issues

Work Items	Description
95026	The PI System Connector User Interface does not always update after the final History Recovery status is sent. Workaround: Refresh the browser to view the correct information.
123575	When a database is initially imported, new reference types are created and the connector is receiving individual creation events that prompt correct reference types to be created and populated with a corresponding allowed parent template. A separate update event to a reference type follows a few moments later, which results in allowed parent template fields to be switched. Workaround: Modify any field on the source template. The connector will resync the values.

Work Items

Description

95026

The PI System Connector User Interface does not always update after the final History Recovery status is sent.

Workaround: Refresh the browser to view the correct information.

123575

When a database is initially imported, new reference types are created and the connector is receiving individual creation events that prompt correct reference types to be created and populated with a corresponding allowed parent template. A separate update event to a reference type follows a few moments later, which results in allowed parent template fields to be switched.

Workaround: Modify any field on the source template. The connector will resync the values.

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 PI System Connector security vulnerabilities that are fixed in this release.

For this release of PI System Connector, the following vulnerabilities have been fixed or mitigated.

Security vulnerabilities fixed in PI System Connector 2.5.4 release

Severity Category	CVSS Base Score Range	Number of Fixed Vulnerabilities
Critical	9 - 10	0
High	7.0 - 8.9	0
Medium	4.0 - 6.9	0
Low	0 - 3.9	0

Vulnerability mitigations in PI System Connector 2.5.4 release

Component	Version	CVE or Reference	CVSS	Mitigation
Angular	6.1.10	CVE-2021-4231	8.1	Vulnerable code is not in execution path.
ag-grid	12.0.2	CVE-2024-38996	8.8	Vulnerable code cannot be controlled by adversary.
ag-grid	12.0.2	CVE-2024-39001	7.3	Vulnerable code cannot be controlled by adversary.
ag-grid	12.0.2	CVE-2017-16009	6.1	Vulnerable code is not in execution path.
ag-grid	12.0.2	BDSA-2016-1698	5.6	Vulnerable code is not in execution path.

Distribution Kit Files

Product	Software Version
Microsoft .NET Framework	4.8
Microsoft Visual C++ 2019 Redistributable (x86)	14.40.33810
Microsoft Visual C++ 2019 Redistributable (x64)	14.40.33810
PI AF Client 2024	3.1.0.1156
PI System Connector	2.5.4