What's new
This topic introduces the new features and enhancements in version 26.3 for VuGen and the script protocols.
Note: The Help Centers for VuGen versions 26.1 and 26.3 are streamlined into a single Help Center. Any version-specific changes are indicated where relevant.
To view enhancements for the 26.1 version, see What's new in 26.1.
AI-driven Performance Engineering
This release includes the following enhancements for AI-driven Performance Engineering.
| Area | Enhancement |
|---|---|
| Core Performance Engineering Aviator |
OpenText™ Core Performance Engineering Aviator is a cloud-based enterprise service that delivers Artificial Intelligence (AI) capabilities. The service extends functionality within OpenText Performance Engineering products that are connected to the paid Aviator service. For details on supported client instances and integrating with Aviator, see the OpenText Core Performance Engineering Help Center. Aviator provides scripting support for Performance Engineering products through VuGen, and automated, AI‑assisted analysis through Core Performance Engineering Analysis. Aviator for ScriptingAviator for Scripting includes the following enhancements:
For details, see Aviator for Scripting. Aviator for AnalysisAviator for Analysis includes the following enhancement:
For details, see Aviator for Analysis in the OpenText Core Performance Engineering Analysis Help Center. General Aviator updatesThe following enhancements are available for both Aviator for Scripting and Aviator for Analysis:
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MCP support |
Model Context Protocol (MCP) provides a standardized and secure way to leverage AI-driven natural-language prompts, enabling the streamlining and automation of performance engineering workflows. MCP server for Controller ServiceThe new Controller Service MCP server enables you to initiate Controller Service processes through external AI tools. You can integrate the MCP server with your favorite AI client, and then use the server tools in chat to run and stop load tests, view Vuser details, and more. For details, see MCP integration in the OpenText Professional Performance Engineering Help Center. Note: MCP server for Controller Service is a private Beta release. MCP server for DevWebThe DevWeb MCP server includes the following enhancements:
For details, see MCP integration in the OpenText Performance Engineering for Developers Help Center. |
User experience
This release includes the following enhancements to the user experience and user interface.
| Area | Enhancement |
|---|---|
| Runtime settings |
The runtime settings have an enhanced user interface, with increased accessibility, a more consistent experience, and a more modern look. For details, see Runtime settings. |
| VTS |
The Virtual Table Server includes the following updates:
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Protocols
This release includes the following protocol enhancements.
| Area | Enhancement |
|---|---|
| Blazor - Web |
A new Blazor - Web protocol is available for recording and replaying Blazor applications with decoded SignalR MessagePack payloads. For details, see Blazor - Web protocol. |
| Citrix ICA |
Support added for Citrix Workspace/Citrix Virtual Apps and Desktops version 2507 LTSR. For details, see Citrix ICA protocol. |
| DevWeb |
You can now specify an IP version to use during script execution, forcing the system to work with IPv4 or IPv6 only. For details, see DevWeb runtime settings. |
| Kafka |
Code generation for Kafka now uses the simplified Builder pattern, replacing the XML raw deserialization that was used previously in the code. For details, see Code generation. |
| LLM |
For details, see LLM protocol. |
| TruClient 2.0 - Web |
For details, see TruClient 2.0 - Web protocol. |
| TruClient - Web |
For details, see TruClient - Web protocol. |
| Web – HTTP/HTML |
For details, see Web - HTTP/HTML protocol. |
Integrations and ecosystem
This release includes the following integrations and ecosystem enhancement. For details, see the Support Matrix.
| Area | Enhancement |
|---|---|
| Operating system |
Support added for Windows 11 version 25H2. |

