AVEVA Diagrams 14​.3 Release Notes

AVEVA Diagrams 14.3, released on February 27, 2026, is a full-service feature that delivers multiple enhancements in licensing implementation, environment configuration, DEXPI export improvements, and overall product stability.

This application supports Windows 11 and Windows Server 2022.

For more information on product features and functions, refer to AVEVA Documentation Portal.

Expectations and limitations

The following expectations and limitations should be considered for this release:

• DEXPI 4.0.1 class mapping limitations: Class mapping in this release is limited to the existing DB element types in the schematic database. Equipment and instrument classes from P&IDs cannot be mapped to corresponding DEXPI classifications. The next fix release will extend configuration options to map equipment and instrument classifications using user-defined component attributes.

• Datasheets view: The Datasheets view has been removed from Diagrams in this release. To view datasheets in the same project context, use the feature available in AVEVA Engineering.

• Custom installation path warning: A warning appears if Diagrams is installed in a directory other than the default path. This does not affect functionality and will be corrected in a future release.

• Folder naming restrictions: Avoid using spaces in installation, project, defaults, and USER DATA folder names. Diagrams does not support folder paths containing spaces.

• Compatibility with older products: If you are using AVEVA Diagrams 14.1 or later, you cannot use the versions of Diagrams included with AVEVA PDMS 12.1 SP4 or AVEVA Hull and Outfitting 12.1 SP4. These versions are not compatible.

• Administration and Lexicon compatibility: Once you start using AVEVA Administration 1.5, you cannot use the Admin or Lexicon versions included with PDMS 12.1 SP4 or Hull & Outfitting 12.1 SP4.

• Visio template settings: For drawing templates used in AVEVA Diagrams, disable the Auto Size option in the Visio Design tab, or disable Let Visio expand the page as needed option in Page Setup.

• Office and Visio upgrade requirement: Before upgrading Microsoft Office and Visio, uninstall any existing Office 365 Apps or Microsoft Visio installations.

New features and enhancements

The following new features and enhancements were added:

• Upgraded licensing implementation to meet AVEVA Unified Engineering requirements. Solution: Upgrade to AVEVA Diagrams 14.3.

• Removed dependency on the system variable APPSTREAM_SESSION_CONTEXT.

• Added administrator configurable environment variable: Aveva_connect_Authority_Url (https://signin.dev-connect-aveva.com).

  Incident/Case Number	Defect Number	Description
  Not applicable	4507704	Symbol shape catalog is now available when exporting drawings in DEXPI format using schema version 3.3.3.
  Not applicable	4514905	New prompt during DEXPI export notifies users when an output file already exists. Workflow: Export selected drawing to DEXPI format. A pop-up appears allowing the user to proceed or cancel.
  960622722	4082124	New feature: Delete multiple drawings from project database. Workflow: Open Schematic Model Manager, navigate to Tools menu, and then select Delete Multiple Drawings. Select one or multiple drawings and select Delete.
  960666406	4216500	Redefinition of DEXPI shape catalog export. Workflow: The application now analyzes the project shape catalog and exports one instance of each available symbol found in project stencils. Each exported symbol instance in the drawings now references the single unique symbol definition from the shape catalog.

Resolved issues

The following issues reported in earlier releases have been resolved in this version.

Known issues

The following known issues and deferred items have been identified for this release. Where available, recommended workarounds are provided:

Third-party products and components

The following are the third-party components without digital signatures (SHA-256 Hash Provided for Integrity verification):

Security information and guidance

The following are the security issues addressed:

• Project login security: Generic usernames previously shown during project login have been removed. Users must enter the required username and password to access the application.

• Use of unsecured URL in DEXPI 4.0.1 export: The ISO Export workflow for DEXPI 4.0.1 uses the URL: http://data.posccaesar.org/rdl/ in Symbol Mapping to look up Component Class values and Component URIs. A link labeled Search for Component Class and URI opens this URL in a browser to search the reference data library.

  Warning: This URL does not support HTTPS. Although the data is not sensitive, accessing the site may introduce security risks.

• Design Reuse licensing: The Design Reuse feature, shared by AVEVA Engineering and AVEVA Diagrams, requires a separate license. LAAS customers must obtain the license V00FN548 – AVEVA Design Reuse to enable this functionality.

• AIM Framework and DirectX prerequisites: If the required versions of the AIM Framework runtime or DirectX are missing, the AVEVA Diagrams 14.3 installer installs them automatically.

• AIM Framework 4.8 support: AIM Framework 4.8 installs only on Windows 11 version 22H2 or later. It is preinstalled on supported versions.

• Windows version check: To check the Windows 11 version, run winver from the Start menu.

• Display scale recommendation: During Windows 11 installation, the system sets a default display scale. AVEVA recommends keeping the scale at 100%. To change it, open Display Settings, update the value, and select Keep Changes.