Testdriver:Changelog

<Update label="v7.9.51-canary" description="April 2026" tags={["canary"]}>

🚀 Canary release

This release promotes changes from v7.9.4-test through v7.9.51-test to canary, rolling up all updates since v7.9.3.

✨ New features

• (Internal) Autoscaling
• (Internal) End-to-end distributed tracing

🔧 Improvements

• Faster image matching
• Storage and infra hardening
• Sentry environment consistency
• Chrome extension interaction reliability
• Docs and onboarding refresh — Updated v7 docs, SDK examples, and VS Code onboarding/init flows.

🐛 Bug fixes

• Windows AMI build stability — Fixed chrome.exe startup/build failures.
• Realtime cleanup reliability — Fixed connection cleanup leaks in session shutdown paths.
• Environment and deployment fixes

<Update label="v7.8.0-test.22" description="March 2026" tags={["test"]}>

Releases test.11 through test.22 include version bumps and internal CI improvements across all packages. No new user-facing changes — see v7.8.0-test.10 for the latest updates in this release stream.

<Update label="v7.8.0-test.10" description="March 2026" tags={["test"]}>

🔧 Improvements

• Parallel test concurrency — Concurrency limits are now enforced with atomic slot tracking, eliminating a race condition where multiple tests launching at the same time could all bypass the limit. If you hit your concurrency cap, the SDK waits and retries automatically.
• Dashboard access for all plans — Test recordings and metrics on the dashboard are now visible to all users, including those on the Free plan.
• Sandbox message throttling — High-frequency interactions no longer risk hitting connection limits. The SDK automatically paces outgoing messages during fast command sequences.
• Windows Dashcam stability — Web log tracking on Windows sandboxes now handles errors gracefully instead of failing the test.

<Update label="v7.8.0-test.9" description="March 2026" tags={["test"]}>

🔧 Improvements

• Stable release promotion — Fixed an issue where promoting a test or canary release to stable could be incorrectly skipped. Stable releases now proceed reliably regardless of the prior pre-release channel.
• Example docs sync — Example documentation now updates more reliably, continuing even when individual example tests fail so that passing examples still get refreshed.

<Update label="v7.8.0-test.8" description="March 2026" tags={["test"]}>

🔧 Improvements

• VS Code environment switching — The TestDriver VS Code extension now includes a status bar indicator and a new TestDriver: Switch Environment command. You can switch between stable, canary, and test environments directly from VS Code, and your MCP server configuration updates automatically.
• Plan rename: Starter → Pro — The "Starter" plan has been renamed to Pro. No changes to pricing or features — just a clearer name. The "Self-Hosted" tier is now labeled Enterprise.
• SDK network resilience — API requests now automatically retry on transient server errors (500, 502, 503, 504) with exponential backoff, reducing flaky test failures caused by brief infrastructure hiccups.
• Pricing page refresh — The hosted plans page now shows plan cards with included minutes, concurrency limits, and pricing at a glance.

📚 Docs updates

• Quickstart redesign — The quickstart now has tabbed setup paths for CLI, GitHub Copilot, and manual installation.
• Deployment section — "Cloud" is now Hosted and the previous Enterprise page has been consolidated into Self-Hosted, which covers both standard and air-gapped deployments.

<Update label="v7.8.0-test.7" description="March 2026" tags={["test"]}> This release includes all changes from v7.8.0-test.6 with version bumps across all packages. No additional user-facing changes.

<Update label="v7.8.0-test.6" description="March 2026" tags={["test"]}>

🔧 Improvements

• Sandbox spawning reliability — Sandbox creation now uses a 3-minute timeout to handle slow infrastructure, then immediately switches to a 60-second orphan timeout for fast cleanup. This reduces sandbox creation failures during high-traffic periods.
• Command deadline timeouts — Sandbox commands now enforce a hard deadline that terminates execution if the connection drops mid-command, preventing tests from hanging indefinitely.
• Real-time channel cleanup — Fixed a compatibility issue with the real-time messaging layer that could cause channel cleanup to fail during shutdown.
• Dashboard timestamp tooltips — Extended UTC date tooltips to the test history sidebar. Hovering over any relative timestamp (e.g., "5 minutes ago") across the dashboard now shows the full UTC date and time.

<Update label="v7.8.0-test.4" description="March 2026" tags={["test"]}>

✨ New features

• GitHub Copilot integration — Use TestDriver directly from GitHub Copilot in VS Code. The new MCP server lets Copilot launch sandboxes, interact with elements, and run assertions through natural language. Includes guides for creating tests, running tests, GitHub Actions integration, and auto-healing.

🔧 Improvements

• Sandbox reliability — Linux sandboxes now use a longer creation timeout to handle slow infrastructure, then immediately switch to a short orphan timeout for fast cleanup of disconnected sessions.
• Command execution timeouts — Sandbox commands now have deadline timeouts that prevent hangs if the connection drops mid-execution.
• Real-time connection stability — Updated the real-time messaging layer for better compatibility and more reliable channel cleanup during shutdown.
• Dashboard date display — Hovering over relative timestamps (e.g., "5 minutes ago") now shows the full UTC date and time.

<Update label="v7.8.0-canary.5" description="March 2026" tags={["canary"]}> This release includes all changes from v7.8.0-canary.4 with version bumps.

✨ New features

• Cache API — Speed up repeated test runs with screenshot-based caching. The system compares screenshots to cached results and reuses element positions when the screen hasn't changed, reducing AI calls.
• Custom error classes — New ElementNotFoundError class with rich debugging info including screenshot paths, pixel diffs, and detailed messages.
• Events system — Listen to SDK lifecycle events with wildcard support via testdriver.emitter. Uses colon-delimited namespaces (e.g., command:start, log:*).
• Provision API — Launch browsers, desktop apps, VS Code, and Chrome extensions in your sandbox before tests run. Access via testdriver.provision.*.
• Redraw detection — Wait for screens to stabilize after interactions using two-phase detection with pixel comparison and z-score analysis.
• Screenshots API — Capture screenshots manually with testdriver.screenshot() or automatically before/after every command.

📚 New examples

• Exec output — Capture and use output from PowerShell commands
• Exec PowerShell — Generate dynamic data with PowerShell
• Focus window — Switch focus between application windows

🔧 Improvements

• Improved console URL mapping for canary and test environments
• Enhanced Ably channel cleanup for better resource management
• Updated release workflow with improved changelog generation

<Update label="v7.5.26" description="March 2026" tags={["stable"]}> 🚀 Stable release

This release promotes v7.5.25 to stable with deployment channel improvements.

✨ Features

• Deployment channels — SDK now supports stable and canary release channels. Stable releases use the latest npm tag, while canary releases use the canary tag. Install canary with npm install testdriverai@canary.

🔧 Improvements

• Improved cache hit debugging and logging
• Enhanced element location reliability
• Better error handling during test execution

🐛 Bug fixes

• Fixed restart behavior during auto-updates
• Fixed console URL routing for various environments

<Update label="v7.5.25" description="March 2026" tags={["stable"]}> 🐛 Bug fixes

• Fixed restart update behavior

<Update label="v7.5.24" description="March 2026" tags={["stable"]}> 🔧 Improvements

• Disabled auto-update restart to improve CI stability

<Update label="v7.5.22" description="March 2026" tags={["stable"]}> 🔧 Improvements

• Added markdown-to-HTML rendering for marketing content

<Update label="v7.5.19" description="March 2026" tags={["stable"]}> 🔧 Improvements

• Enhanced debugging output for cache hits
• Improved element location reliability

<Update label="v7.5.17" description="March 2026" tags={["stable"]}> 🔧 Improvements

• Improved codespace scaling and development environment setup
• Updated VS Code extension version