---
version: "2026"
language: "en"
---
# Release 2025.3 - November 6, 2025

In 2025.3, we are introducing full request/response parameterization, new functional HTTP steps, improved filtering, and greater visibility into performance consumption.

## Parameterization in request bodies and headers

Go now supports parameterization across request components inside a sequence.

You can now insert variables into:

* Request bodies

* Request headers

This enables highly dynamic test flows, simplifies reuse, and supports execution across multiple environments without modifying the underlying sequence.

## Parameterization in Timeline

We have also extended the same parameterization capabilities to **Timeline**.

You can now apply variables directly inside:

* Timeline request bodies

* Timeline request headers

This ensures that timeline-based performance tests are fully data-driven and flexible, matching the functionality available in sequences.

## New HTTP functional steps from the context menu

To accelerate Flow creation, Go now allows you to insert HTTP calls manually in a Sequence by right-click and choosing it in the context menu.

Once done, you can select between GET, POST, PUT, and DELETE calls.

These functional steps behave like any other HTTP action in a sequence, and support parameterization, validation, and filtering.

## HTTP request/response filtering

Go now includes dedicated **filters for HTTP request and response data** inside sequences.

You can filter on:

* Request headers

* Request body

* Response headers

* Response body

This makes it easier to find specific values, debug large payloads, and identify fields suitable for parameterization or assertions.

## New Data Item: Dictionary

A new Dictionary data item is now available to support richer, structured data management.

### Key capabilities:

* Supports static and dynamic key--value pairs

* Can be used for parameterization within sequences and timelines

* Ensures consistent variable management across complex scenarios

This provides significantly better support for reusable configuration values, environment-specific parameters, and structured datasets.

## Timeline resource estimation (VUM \& performance insights)

Go now calculates and displays estimated performance consumption metrics before executing a Timeline.

You will now see:

* Expected Virtual User Minutes (VUM) consumption

* Peak Virtual Users during execution

* Total expected runtime duration

This allows users to plan load tests with precision, control usage costs, and understand the performance footprint of each timeline.