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# What's new

This topic introduces the new features and enhancements in version 26.3 for OpenText™ Professional Performance Engineering.

Note: The Help Centers for OpenText Professional Performance Engineering 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.

In this topic:

## 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 Scripting Aviator for Scripting includes the following enhancements: Ability to use single sign-on from your browser to complete Aviator authentication. Ability to create new data files and add them under the script folder. A descriptive summary of the parameters used in the script, provided on request. Context-aware scripting assistance that can suggest next steps and relevant actions, based on script content and execution context. Advanced language model upgrade, enabling more detailed, accurate, and comprehensive responses. Extended assistance with error logs for Java protocols. AI assistance available in the TruClient 2.0 - Web JavaScript editor. Stability and optimization improvements. For details, see Aviator for Scripting in the VuGen Help Center. ### Aviator for Analysis Aviator for Analysis includes the following enhancement: Ability to use predefined prompts, and append results to the current conversation, without losing context. For details, see Aviator for Analysis in the OpenText Core Performance Engineering Analysis Help Center. ### General Aviator updates The following enhancements are available for both Aviator for Scripting and Aviator for Analysis: AI Usage report, available on the AI Usage page of the Core Performance Engineering Platform, providing aggregated visibility into AI query consumption across supported products. Chat management, enabling you to reopen, pin, and rename conversations in the history. Improved functionality and responsiveness.
MCP support | Model Context Protocol (MCP) provides a standardized and secure way to leverage AI-driven natural-language prompts. This enables you to streamline and automate performance engineering workflows. ### MCP server for Controller Service The 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. Note: MCP server for Controller Service is a private Beta release. ### MCP server for DevWeb The DevWeb MCP server includes the following enhancements: Improved handling of the record, generate, and replay processes. Expanded guidance for working with the MCP server workflows and processes. Provides assistance with writing scripts. Ability to identify high-confidence parameterization candidates, such as user names, passwords, and user identifiers (Beta feature). Ability to create DevWeb scripts using Swagger API specifications, and to edit function parameters. For details, see MCP integration in the OpenText Performance Engineering for Developers Help Center.

## Data and analytics

This release includes the following data and analytics enhancements.

Area | Enhancement
--- | ---
Resource monitoring for load generators | Disk usage monitoring is now supported for Linux-based load generators, in addition to Windows-based load generators. For details, see Controller and Load Generator Resources monitor.
TruClient 2.0 graphs | Client-side measurements now include two new graphs for TruClient 2.0: Cumulative Layout Shift (CLS). Interaction to Next Paint (INP). For details, see Client-side monitoring.

## Integrations and ecosystem

This release includes the following integrations and ecosystem enhancement.

Area | Enhancement
--- | ---
Operating system | Support added for Windows 11 version 25H2.

## VuGen and protocols

Virtual User Generator (VuGen) includes the following enhancements. For details, see the VuGen What's new.

Area | Enhancement
--- | ---
Runtime settings | The runtime settings have an enhanced user interface, with increased accessibility, a more consistent experience, and a more modern look.
VTS | The Virtual Table Server includes the following updates: Ability to search the VTS table using the Column name, by retrieving a range of values from the column. Ability to use locally installed help with VTS. Security fixes.

VuGen protocols include the following enhancements. For details, see the VuGen What's new.

Area | Enhancement
--- | ---
Blazor - Web | A new Blazor - Web protocol is available for recording and replaying Blazor applications with decoded SignalR MessagePack payloads.
Citrix ICA | Support added for Citrix Workspace/Citrix Virtual Apps and Desktops version 2507 LTSR.
DevWeb | You can now specify an IP version to use during script execution, forcing the system to work with IPv4 or IPv6 only.
Kafka | Code generation for Kafka now uses the simplified Builder pattern, replacing the XML raw deserialization that was used previously in the code.
LLM | Support added for Anthropic model. Support added for custom LLM models that are non-streaming, JSON-formatted, and include token counts. Ability to configure cross-step execution, controlling whether the script waits for the LLM request to complete.
TruClient 2.0 - Web | If TruClient shuts down unexpectedly, you can recover a script from its last known state. You can now call a Javascript function using a Generic API action step, and create a variable if needed. Support added for two new client-side measurements, Cumulative Layout Shift (CLS) and Interaction to Next Paint (INP). AI assistance is now available in the JavaScript editor for code generation and code-fix suggestions. Support added for speed simulation on Windows and Linux. UI improvements for all code editors. Security fixes.
TruClient - Web | Support for Chromium browser version 149. Security fixes.
Web – HTTP/HTML | Enhanced web-recording performance. Improved recording performance and certificate creation when recording with proxy. Non-blocking socket support. Improved WebSocket recording.

OpenText™ Performance Engineering for Developers includes the following enhancement. For details, see the What's new.

Area | Enhancement
--- | ---
Create scripts from Wireshark file | You can now capture your network traffic using Wireshark, and use the output to generate a DevWeb script. Wireshark captures all types of HTTP traffic.

## See also

- What's new in earlier versions
- Known issues
- Deprecated features
- Support Matrix

https://admhelp.microfocus.com Professional Performance Engineering,VuGen 8942
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