# January 2026 Changelog

## **Release Notes**

January marked the release of two-click onboarding for unit test generation as well as our Python SDK for Tusk Drift.

The former is part of a major initiative to provide agentic setup for both our unit test and API test generation products. In a few clicks, users can go from an untested repo to generating/running unit tests in minutes, with our agent handling Dockerfile creation, test scripts, and coverage setup.

The latter means our API test automation now supports Python repos (3.9+) with Django, Flask, and FastAPI services. It has instrumentations like gRPC, aiohttp, urllib3, HTTPX, Kinde, and PyJWT. In other news, we revamped our global UI, including a streamlined billing experience.

## **Platform**

### Major Features

- **Two-Click Unit Test Onboarding**: Automatically start generating unit tests for your repo in two clicks; our setup agent detects test frameworks, creates config files, and verifies the test environment works within minutes.
- **Streamlined Billing**: Improved billing experience with native checkout and subscription management. All sign-ups now come with 14-day free trials of our Business Plan.
- **UI Revamp**: Fresh new design with a top navbar, font update, refined dark mode, and improved hover states and icons across the app.
- **Prompt Fix in PR Comment**: Provides a copy-paste prompt for other AI coding agents to make suggested fixes for failing tests.

### Test Quality Improvements

- **CoverBot Selection Guidelines**: Configure file and symbol selection criteria using natural language (e.g., “focus on utility functions”).
- **Improved Deviation Analysis**: Addressed edge case causing inefficient deviation analysis on large PR diffs.

### DX Enhancements

- **Branch Name Customization**: Configure custom branch naming templates for both PR test incorporation (e.g., `tusk-tests-{{prBranchName}}-{{timestamp}}`) and CoverBot runs (e.g., `tusk-coverbot-{{configName}}-{{datetime}}`).
- **Improved Repo Management**: Repo organization into enabled/disabled sections and glob pattern support for ignoring base branches.

## **CLI**

### Major Features

- **Setup Verification**: Validate that an existing Tusk Drift setup is working correctly with `tusk setup --verify`. Re-records and replays traces against configured endpoints without going through the full setup agent. **‍**
- **Automated Cloud Setup Flow**: Setup agent does complete end-to-end setup for Tusk Cloud with trace upload, suite validation, and automatic authentication.
- **Python SDK Setup**: Setup agent now fully supports onboarding Python projects with Django, Flask, and FastAPI services.
- **Auto-Update (Enabled by Default)**: The CLI automatically checks for and applies updates. Disable with `--no-auto-update` if needed.
- **Span Caching**: Local caching of recorded spans for faster replay execution and reduced network overhead.

### DX Enhancements

- **Improved TUI Stability**: Fixed escape key handling, optimized log panel rendering, and resolved potential deadlocks in interactive mode.
- **Clearer Setup Guidance**: Improved messaging during cloud setup with better next-step guidance and phase descriptions.
- **Auto-Update .gitignore**: The setup agent automatically adds Tusk-specific entries to your `.gitignore`.
- **Span Tree View**: The `tusk list` command now displays spans in a hierarchical tree structure for easier trace visualization.

## **SDKs**

### Python

- **New Instrumentations**: Added support for gRPC clients, Kinde auth, aiohttp, urllib3, httpx, and pyJWT. Python 3.9+ is supported.
- **Performance & Resilience Improvements**: Optimized SDK for production workloads with reduced overhead and improved resilience under high-throughput conditions.

### Node.js

- **Improved Mock Matching Logs**: Human-readable match metadata logging with type, scope, description, and score for easier debugging.
- **HTTP Error Status Fix**: Only HTTP 4xx+ responses are now treated as errors (previously 3xx+ were incorrectly flagged). HTML responses are now accepted content types.