TestPion 0.47.0

Behaviour changes: what works differently (read before upgrading)

• A single click on a request opens a preview tab. In the Collections explorer a click opens the request in a preview tab (its name in italics) that the next click replaces, as test files, monitors, load tests and evaluations already did; double-click the item or the tab, press Enter or change something to keep it. Saved AI prompts, environments and saved Debugger sessions now open in tabs the same way. (Open an item)
• The rail shows five views, and Ctrl+Alt+3 is now Tests. The rail shows Home, Collections, Tests, Environments and History; More… under them lists Debugger, Monitors, Load, AI Lab, Evaluations, Traces and Git. Ctrl+Alt+1…9 count the shown views, so by default 1 Home, 2 Collections, 3 Tests, 4 Environments, 5 History (3 was the Debugger, 4 Tests …). Right-click the rail to show a view again (Show on the rail, Show every view). (Choose what the rail shows)
• Deleting no longer asks "Are you sure?" when it can be undone. A request, folder, collection, environment, dataset, gRPC call or connection, saved prompt, load test, evaluation, monitor, MCP server, example or a list's folder goes at once (the Delete key too), with Undo in the message for 8 seconds and Ctrl+Z outside text fields; it comes back with its id, in its place. Deletes that can't be taken back still ask. (Deleting and Undo)
• Flow steps written with a nested request: now get the file's defaults: auth:, like every other HTTP step (it was ignored, so such steps were sent without auth). A step that must go without it says auth: { type: none }.
• The Model comparison has its own prompt. It no longer shares the prompt with the AI Playground, whose saved prompts now open in tabs.

Choose what the rail shows

• Right-click a rail item: Hide from the rail, Move up / Move down, Show on the rail ▸, Show every view, Reset the rail. A view opened from More… (or Ctrl+K, a link) shows on the rail while it is open, with Keep on the rail; the Git view's count shows on More… while Git is hidden there.
• The tooltips, the shortcuts list and the command palette's hints follow the shown views; Ctrl+K ▸ Rail: Show Every View / Rail: Reset to the Default Views. The choice is this computer's (settings.json rail).

Settings ▸ Keyboard

Every shortcut on one page with a search; the app-wide ones can be rebound (click, press the keys), with clashes named (Use it here swaps) and reserved keys refused with the reason, reset one by one or all, and exported / imported as JSON (testpion-keybindings.json). The shortcuts list, tooltips, the top bar and the palette's hints show your keys; saved for this computer (settings.json keybindings). Also from the ? list (Change the keys…) and Ctrl+K. (Change the keys)

Responses: JSONPath suggestions and Diff vs previous

• JSONPath filter with suggestions. The Filter with JSONPath field of every JSON tree (response bodies, History, Traces, the Debugger) suggests the body's own paths as you type (arrays as [*]), shows the match count, and says why a path is wrong instead of quietly matching something; a big body is filtered once typing pauses. (Checks from the response)
• Diff vs previous. A response's actions compare it with the previous response of the same request (sent earlier this session, else from History): status, time, headers and a field-by-field body diff, the same view as History ▸ Compare. Agents and scripts already have it: testpion history diff --json, MCP compare_responses. (Diff vs previous)

Compact density

Settings ▸ Appearance ▸ Density: Compact fits more rows and fields on screen in every view (tighter spacing, fields, list rows and small text), through the design tokens, so every view follows; kept for this computer and applied from the first paint. Ctrl+K ▸ Density: Switch Compact / Comfortable toggles it.

Undefined variables at a glance

The environment switcher (top bar and status bar) shows a red count when the open HTTP request uses {{variables}} the active environment, its collection, the workspace and the globals don't define, updated as you type; click it to add each one (and to the other environments). (Undefined variables)

The HTTP Debugger

• The reverse proxy fills the Debugger's grid. What Reverse proxy for one API forwards joins the Debugger's session (marked reverse, Reverse proxy in the Application column and filter), so selection, filters, Create flow, Save to collection, HAR export and sessions work on it; the dialog keeps its own list and Save, and Show in Debugger goes there. (Reverse proxy for one API)
• Capture sessions in History. Each Save to collection, Create flow and Save session adds a History entry (kind capture): the exchanges, hosts, proxy or reverse proxy, the time span, and a link that opens what it became. testpion history list --kind capture --json (and -q/--query), MCP history_list; a new link kind capture opens a saved session. (Sessions)
• Saved sessions in tabs. A saved session opens in a tab beside Live capture, which keeps capturing; Add to the live capture copies it in.

Flows: inherited auth in the designer

An HTTP step without auth of its own shows the auth it inherits from the file's defaults: auth: (and where it comes from) instead of "No auth", with Override and No auth to change it for that step; testpion flow --json and flow_graph list it as inheritedAuth (typed credentials masked). (Design a flow)

More

• Files written by anyone show up at once. Every change TestPion makes to the workspace's files (a test file saved through tests.write, generated tests, a dataset, an import, a move to the trash) tells the views which files changed (data.changed with the method, kinds and paths), so the Tests list and the explorer follow straight away, without a "changed outside" message. TestPion now tells its own saves by the file and what it wrote into it, not by a 1.5-second window: a change another program makes right after a save is no longer missed. (Git)
• A guided tour of the first loop. A short, skippable tour on Home (Send → Save → Save as test → Run → Run in CI), shown once per workspace and from Get started ▸ Take the tour; keyboard friendly. (Get started)
• One mode switch. The response body's view modes (Pretty, Table, Raw, Preview, Visualize), the Console filter, the WebSocket protocol, a trace payload's view, an MCP tool result and collection docs use the one shared switch (labelled words, not lowercase buttons).
• Preferences that can't break the app. A rail, keybindings or density value of the wrong shape in settings.json (a hand edit, another version) is ignored: the app starts with the default for it.
• Quick Open, the command palette and search: Enter opens the row the keyboard is on, even when the list opens under a resting mouse pointer (it opened whatever row landed under the pointer).

Downloads

See the download page for which file to choose and the installation guides.

The installers aren't code-signed yet: Windows SmartScreen and macOS Gatekeeper ask you to confirm the first launch.