Release notes

Changelog

Everything shipped to Thunders: new features, improvements, and fixes.

•
July 10, 2026
Thunders Cloud

File Compare dual-pane viewer, a credits chart, and steadier runs

TL;DR

File Compare gains a side-by-side viewer, the analytics dashboard adds a daily credits chart, and runs handle lost browser sessions more gracefully.

FEATURE
  • Credits chart: the analytics dashboard now shows a bar chart of credits consumed per selected period.
IMPROVEMENT
  • File Compare viewer: File Compare (beta) now has a side-by-side matches and mismatches viewer, so you can see both files and jump straight to a flagged difference in either pane.
  • Detach test case source: detach a test case's source, with a refreshed Xray source card.
  • Parallelism cap: max parallelism is now capped by test case count instead of CSV row count.
FIX
  • Session-lost runs: browser crashes and lost sessions now fail fast as an interrupted run, instead of cascading into an opaque exception.
  • Run duration: fixed test-set run duration being inflated by idle-gap time.
  • UI polish: aligned modal buttons, tree indentation, sidebar labels and icons, and accessible step controls, and cleared a stuck "saving test steps" toast.
•
July 8, 2026
Thunders Cloud

Variables across a test set, file comparison, and JavaScript steps

TL;DR

Prerequisite Test Case in Test Set now pass on what it creates, plus a new File Compare step, sequential execution behavior, and JavaScript steps.

FEATURE
  • Prerequisite variables: prerequisite tests hand off runtime variables to every downstream test in the set.
  • File Compare step (beta): compare expected vs actual files with AI guidance and variable interpolation, without leaving the runner.
  • Sequential execution: run a set or campaign in predictable alphabetical order, stopping at the first failure or continuing through.
  • JavaScript steps: write and run JS in a built-in editor, isolated in its own tab, with access to variables and prior results.
IMPROVEMENT
  • API body editor: the API step JSON body is a full variable editor, with autocomplete, highlighting, and inline references.
  • Resolved variable preview: see the real runtime value a step will use instead of raw tokens.
  • Ownership: reassign test case ownership individually or in bulk.
  • Domain allowlist: skip noisy third-party calls during page-load checks, per project.
FIX
  • Variable rename: renaming a variable from project or environment variables now updates every step that uses it.
  • Editing conflicts: if a test case changed since you opened it, you now get a clear version-conflict message instead of a generic error.
  • Step type preserved: editing a browser step keeps it as a browser step instead of reverting to an AI step.
  • Duration overflow: run duration no longer overflows in aggregated runs.

Thunders MCP

  • Expanded toolset: clone test case, update step, insert step, and update environment.
•
June 24, 2026
Thunders Cloud

A lifecycle for your tests, and Thunders Copilot inside test runs

TL;DR

More of what Thunders does is now yours to shape.

FEATURE
  • Test case lifecycle: move a case through Draft, Ready, Approved, and Deprecated, with the status snapshotted on every run.
  • Thunders Copilot in test runs: chat to explain failures, summarize results, or investigate steps, with per-run history and file upload.
  • Environment Init Scripts: run a JavaScript snippet before every test to bypass captcha, stub analytics, or seed feature flags.
  • Guided Visual Comparison: tell Thunders what to focus on or ignore via a new Instructions field.
  • Xray both ways: connect Xray Data Center, and sync run results back to the originating Xray ticket.
  • Multipart and form-data in API steps, including file uploads.
IMPROVEMENT
  • Copy any Copilot or user message from a conversation with one click.
  • Alphabetical sequential run order, and add downloaded files straight to Test Assets.
FIX
  • Failed status now takes priority over Stopped when aggregating a test set run.
  • Non-browser steps show a placeholder instead of a missing screenshot.
  • Variable text can now be highlighted and selected in steps.
  • Dark mode switch visibility and the user profile layout corrected.

Thunders MCP

  • Unified native MCP integrations for Notion, Linear, Atlassian, Shortcut, and Azure DevOps.
•
June 2, 2026
Thunders Cloud

Shareable runs, your first Analytics, and a new Recorder

TL;DR

Your test runs now travel beyond Thunders.

FEATURE
  • Shareable run links: send any run to anyone, inside or outside your org, viewable in the browser with no Thunders account.
  • Analytics dashboard: track execution trends, pass rates, and run volume across a project.
  • New Thunders Recorder (beta): record browser flows into ready-to-run steps, with clipboard and iframe support.
  • Xray Cloud native integration: import manual or Cucumber tests, and export Thunders tests back to Jira Xray.
  • Test set prerequisites: gate execution so dependent tests only run when the prerequisite passes.
  • New capture steps: Extract File as CSV, viewport or full-page screenshots, and PDF export.
IMPROVEMENT
  • API testing: raw response view, export body as JSON, and variables in assertion values.
  • Thunders Copilot now greets an empty chat with suggested prompts to help you get started.
  • The Recorder recovers interrupted sessions, so a dropped connection no longer loses your captured steps.
FIX
  • Bug reports can now be created in Firefox.
  • Azure DevOps bug links now open the web UI instead of a raw API URL.
  • Secret variables no longer reveal their saved value when unchecked.
•
May 25, 2026
Thunders Cloud

Test campaigns, inline AI reasoning, and PDF reports

TL;DR

Real campaign management for Test Sets, plus new integrations.

FEATURE
  • Test Sets are now true Campaigns: re-execute only the failed tests, with campaign status and pass rate updating automatically.
  • AI reasoning inline in your test results, expandable or collapsible per step.
  • JS dialog support: alert, confirm, and prompt dialogs are handled during execution.
  • New integrations: report bugs to self-hosted Jira Data Center, and connect Confluence as a knowledge source for Copilot.
  • Export Test Runs as PDF (preview): custom intro, logo, language, and colors in a ready-to-share report.
IMPROVEMENT
  • Copilot: interrupt an in-flight request, highlighted variables in responses, and asset autocomplete.
  • New WCAG 2.2 accessibility persona.
FIX
  • Runs interrupted by a system failure are now marked with a clear Interrupted status instead of hanging.
  • More reliable clicking on labels and elements.
  • Microsoft Edge no longer gets stuck when the URL is empty.
  • Late-arriving downloads are surfaced as sub-steps and waited for before file checks.
  • Improved recorder reliability inside iframes.
•
May 19, 2026
Thunders Cloud

API testing upgrade, Thunders Copilot reasoning, and run comparison

TL;DR

A lot got more transparent this release.

FEATURE
  • API testing: open the full response in an interactive inspector, extract any value as a reusable variable in one click, and assert on status codes, headers, or body.
  • Thunders Copilot thinks out loud: it now streams its reasoning and actions in real time instead of a loading spinner.
  • Compare two test runs side by side: step- and action-level diffs across screenshots, page HTML, logs, and execution settings.
  • Console error detection: the QA Persona flags browser console errors during execution, even when the UI still looks fine.
  • Re-run a failed test run directly, not just individual test cases.
IMPROVEMENT
  • Every Test Set gets its own workspace, with pass rate, runs, and cases in a single view.
  • Full multi-tab visibility: tabs appear in the preview header with page title and favicon.
  • Keyboard shortcuts across the test case editor.
  • Accessibility Persona gains an "Always" severity level, plus the RGAA 4 standard option.
FIX
  • Variable placeholders are preserved in step inputs.
  • Fixed filling date inputs on React apps and iframe fields on Firefox.
  • Azure DevOps bug reports now route the description to the correct field per work-item type.
  • Better auto-generated test-case titles, and improved popup detection.
•
April 21, 2026
Thunders Cloud

Thunders Copilot rebuilt, Multi-Apps, reusable variables, and dataset runs

TL;DR

A big first drop covering everything from January through March.

FEATURE
  • Thunders Copilot rebuilt: turn Jira or Linear issues (or any URL) into test cases, and create, update, or reuse any step type from a single prompt.
  • Multi-Apps: a project can now hold multiple web and API apps, each with its own environment URLs, so a single test can cross from your admin panel to your frontend.
  • Variables and credentials: define once at the project level with per-environment overrides, and insert them inline with autocomplete.
  • Run across your own datasets: upload a CSV and execute a test case against every row, with batch and row-level results.
  • New step types: if-conditional branching, skip steps, reuse test cases in cleanup, and automatic multi-tab handling.
  • Save any API response value as a variable with an interactive Response Inspector.
  • Extract data from a page as a file, and assert on file contents including Excel and Office documents.
  • Flakiness rate and multi-run flakiness visualization in test reports.
  • PDF test reports for everyone, with configurable layout, step durations, and embedded screenshots.
  • Console-exception detection for the QA persona, with console logs always saved even after a crash.
IMPROVEMENT
  • Unified test case editor: owner, labels, test sets, runs, and reused cases all in one view.
  • Custom labels to create, apply, and filter across test cases.
  • Better run settings: configure parallelism and retries, save per-test execution settings, and set a custom navigation timeout.
  • Understand and resume failed runs with Hot Reload, browser console logs, and per-step AI reasoning.
  • Report bugs to ClickUp and Shortcut, alongside Jira and Linear.
FIX
  • More reliable clicking on checkboxes, radios, and long scrollable dropdowns.
  • Fixed date-field scrambling, MUI date pickers, and cross-origin iframe field filling.
  • Bounded action timeouts so runs no longer hang, and stuck runs are correctly marked failed.

Thunders MCP

  • Operate Thunders from AI clients like Claude, ChatGPT, Cursor, and Devin.
  • Convert existing Playwright or Selenium tests into Thunders test cases.
  • New MCP tools to create test cases, create and clone environments, manage environment variables, and fetch projects and test runs.
•
December 10, 2025
Thunders Cloud

Element highlighting during execution and smarter runner variables

TL;DR

Element highlighting during execution, smarter runner-generated variables, and clearer bug tickets.

FEATURE
  • Element highlighting: highlight elements during test execution, on by default.
  • File uploads: upload .dat files in Test Assets.
IMPROVEMENT
  • Add description field for browser steps: browser steps are written in a more human-friendly way.
  • Reported bug tickets: bug tickets use the project language and include a link to the test run.
  • Persistent filters: test-run table filters now persist, and screenshot timing improved.
  • Runner variables: generate today's date, or pick a value from a list of explicit options.
  • Fresh UI: refreshed icons and new empty-state views across the app.
FIX
  • Instant access: the upgrade button and execution access update immediately after an upgrade or trial expiry, with no need to log out.
  • Variable generation: more stable fixed-value generation, and downloaded-file-name assertions now work correctly.
  • Selector finder: a major accuracy improvement for element targeting.
•
December 3, 2025
Thunders Cloud

System theme mode, Hot Reload GA, and yearly billing

TL;DR

System theme mode, Hot Reload reaches general availability, and yearly billing, plus a much simpler onboarding and a new Paris execution location.

FEATURE
  • System theme mode: choose Dark, Light, or System, following your OS preference.
  • Hot Reload GA: now generally available (not supported on Firefox or Safari).
  • France Central location: a new execution location in Paris.
  • Yearly billing: now available under Subscription then Billing.
IMPROVEMENT
  • Simpler onboarding: organization onboarding is down from five screens to one.
  • Status to runs: navigate from a test case status to its filtered runs, and view all runs for a test case.
  • Clearer startup: clearer "preparing testing environment" messaging.
  • CI attribution: test runs show when a run was triggered by a CI pipeline user.
  • Localized reports: the accessibility report dialog and emails follow the project language.
  • Variable handling: more reliable variable extraction, and better handling of dynamic dropdowns.
FIX
  • No-projects navigation: fixed broken navigation when an organization has no projects.
  • Queued filter: fixed the empty view shown when applying the Queued filter.
  • iframe extraction: fixed web content extraction inside iframes.
•
November 21, 2025
Thunders Cloud

Direct links from runs to test cases, bulk delete, and a resizable editor

TL;DR

Jump from a run straight to its test case, bulk-delete test cases, and work in a resizable editor, plus much faster test-run lists on large projects.

FEATURE
  • Run to test case: jump straight from any test run to the original test case.
  • Bulk delete: delete test cases from the list in bulk.
IMPROVEMENT
  • Resizable test case editor: the divider between the browser and test step panels is now resizable.
  • Run-view settings: advanced browser settings now show in the test run view.
  • Firefox default: Firefox is now the default execution browser.
  • API bodies: support for URL-encoded body content in API calls.
  • Duplicate with reuse: reused test cases are carried over when you duplicate a test case.
  • Test plan source: test plans show the source file or prompt used, in both the list and the editor.
  • Faster run lists: server-side pagination, sorting, and filtering for large projects.
  • Accessibility default: reports now default to the European EN 301 549 standard.
  • Element detection: more reliable detection inside iframes and shadow DOM.
FIX
  • Faster stop: the stop button now halts an executing test case faster.
  • Empty test set: the run button is disabled when a test set is empty.
  • Browser toggles: fixed browser-settings toggles across screens, and disabled advanced settings during execution.
  • Screenshots and steps: screenshots display at real resolution, and reports no longer show empty steps.
•
October 17, 2025
Thunders Cloud

Redesigned project creation and a configurable accessibility persona

TL;DR

A redesigned project creation and onboarding flow, a configurable Accessibility persona, and more than 30 stability fixes.

FEATURE
  • Project creation redesign: a smoother creation and onboarding flow with reliable error handling, so it succeeds even when scraping fails.
  • Accessibility persona config: a new configuration page, with multilingual accessibility reports.
  • Visual understanding: now supports shadow DOM and iframes.
IMPROVEMENT
  • Saved before run: manual step changes are now saved before execution.
  • Faster visual comparison.
  • Run handling: better file uploads, iframes, and scrolling during runs, plus improved API execution and environment settings.
FIX
  • File upload and drag-and-drop: file upload works with values and inside iframes, and drag and drop is fixed.
  • Pagination: now respects your saved preference.
  • 30+ stability fixes: across navigation, settings, UI, execution, personas and accessibility, bug reporting, and project language.
•
October 10, 2025
Thunders Cloud

Visual comparison goes live, test asset management, and accessibility PDF reports

TL;DR

Visual comparison goes live, a new Test Asset Management tab, and downloadable accessibility PDF reports, plus a faster app and a refreshed Personas experience.

FEATURE
  • Visual comparison 1.0: now live for catching unexpected visual changes.
  • Test Asset Management: a new tab to upload and manage files used in tests in one place.
  • Accessibility PDF reports: download a detailed report when running with the Accessibility persona.
  • Click-at action: a new browser step action for precise clicks.
  • Test plan translation: with more accessibility standards to choose from and multilingual reports.
IMPROVEMENT
  • Faster app: the front-end now loads noticeably faster.
  • Personas refresh: clearer titles and descriptions, with Stable, Preview, and Alpha stability tags.
  • User profile: redesigned profile page.
  • Browser zoom: enhanced zoom controls.
  • Shadow DOM and persistence: better shadow DOM handling, and environment and persona settings persist across test cases.
  • Credit consumption: test plans now show credit consumption.
FIX
  • Azure DevOps: fixed the integration issue.
  • Queued runs: variables now work in queued runs, and personas are correctly applied.
  • Scrolling: fixed scrolling in long bug reports and duplicate scroll actions on iframes.
•
October 3, 2025
Thunders Cloud

Reusable test cases, Edge support, and advanced browser settings

TL;DR

FEATURE
  • Recorder v1 is released.
  • Assert on a downloaded file.
  • View the connection status of all your integrations.
  • Personas moved to project scope, with a redesigned profile page.
IMPROVEMENT
  • Broader selector type support for browser steps.
  • The running-test indicator is now a proper spinner.
  • Bug creation now prioritizes your connected integrations.
FIX
  • Fixed authentication and timing issues during test execution, and improved credit-consumption precision.
•
September 26, 2025
Thunders Cloud

Reusable test cases, Edge support, and advanced browser settings

TL;DR

Reuse test cases across tests, run them in Microsoft Edge, and get finer browser control, plus a new Enterprise plan.

FEATURE
  • Reusable test cases: call an existing test case from inside another to reuse it.
  • Microsoft Edge: run your tests in Edge.
  • Advanced settings panel: finer control over browser configuration.
  • Enterprise plan: a new plan for larger teams.
IMPROVEMENT
  • Group billing: manage billing at the group level for teams with multiple accounts.
FIX
  • Stability batch: recorder, browser-settings, translation, and test plan counter fixes.
•
September 22, 2025
Thunders Cloud

Rebrand to Thunders, post-run suggestions, and broad test browser fixes

TL;DR

Thunder Code is now Thunders. This release adds post-run suggestions, variable assertions in steps, and yearly billing, plus a broad wave of browser and execution fixes.

FEATURE
  • Rebrand to Thunders: Thunder Code is now Thunders across the product.
  • Post-run suggestions: recommendations to make your steps more reliable after a run.
  • Variable assertions: assert on variables inside a test step.
  • More controls: yearly billing, advanced browser settings, and reusable modules.
IMPROVEMENT
  • Auto-split steps: steps with multiple checks are split automatically into separate actions.
  • Inline test plan editing: edit test plan titles inline, and read scenario and test case status from new status icons.
  • French wording: corrected French button labels and wording.
FIX
  • Recording sessions: fixed black screen problems and unreliable sessions.
  • Firefox and Safari: fixed test execution on both, plus an iframe regression.
  • Auth loop: resolved an infinite loop that could occur when your authentication token expired.
  • Execution accuracy: more accurate test duration, and better handling of custom, non-native dropdowns.
  • UI polish: fixed layout, button states, dropdown styling, and project dropdown search.