v1.60.0

## 🌐 HAR recording on Tracing

[tracing.startHar()](https://playwright.dev/docs/api/class-tracing#tracing-start-har) / [tracing.stopHar()](https://playwright.dev/docs/api/class-tracing#tracing-stop-har) expose HAR recording as a first-class tracing API, with the same `content`, `mode` and `urlFilter` options as `recordHar`. The returned [Disposable](https://playwright.dev/docs/api/class-disposable) makes it easy to scope a recording with `await using`:

```js
await using har = await context.tracing.startHar('trace.har');
const page = await context.newPage();
await page.goto('https://playwright.dev');
// HAR is finalized when `har` goes out of scope.
```

## 🪝 Drop API

New [locator.drop()](https://playwright.dev/docs/api/class-locator#locator-drop) simulates an external drag-and-drop of files or clipboard-like data onto an element. Playwright dispatches `dragenter`, `dragover`, and `drop` with a synthetic [DataTransfer] in the page context — works cross-browser and is great for testing upload zones:

```js
await page.locator('#dropzone').drop({
  files: { name: 'note.txt', mimeType: 'text/plain', buffer: Buffer.from('hello') },
});

await page.locator('#dropzone').drop({
  data: {
    'text/plain': 'hello world',
    'text/uri-list': 'https://example.com',
  },
});
```

## 🎯 Aria snapshots
- [expect(page).toMatchAriaSnapshot()](https://playwright.dev/docs/api/class-pageassertions#page-assertions-to-match-aria-snapshot) now works on a [Page](https://playwright.dev/docs/api/class-page), in addition to a [Locator](https://playwright.dev/docs/api/class-locator) — equivalent to asserting against `page.locator('body')`.
- New `boxes` option on [locator.ariaSnapshot()](https://playwright.dev/docs/api/class-locator#locator-aria-snapshot) / [page.ariaSnapshot()](https://playwright.dev/docs/api/class-page#page-aria-snapshot) appends each element's bounding box as `[box=x,y,width,height]`, useful for AI consumption.

## 🛑 test.abort()

New [test.abort()](https://playwright.dev/docs/api/class-test#test-abort) aborts the currently running test from a fixture, hook, or route handler with an optional message. Use it when you have detected an unrecoverable misuse and want to fail the test right away:

```js
test('does not publish to the shared page', async ({ page }) => {
  await page.route('**/publish', route => {
    test.abort('Tests must not publish to the shared page. Use the `clone` option.');
    return route.abort();
  });
  // ...
});
```

## New APIs

### Browser, Context and Page
- Event [browser.on('context')](https://playwright.dev/docs/api/class-browser#browser-event-context) — fired when a new context is created on the browser.
- [BrowserContext](https://playwright.dev/docs/api/class-browsercontext) now mirrors lifecycle events from its pages: [browserContext.on('download')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-download), [browserContext.on('frameattached')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-frame-attached), [browserContext.on('framedetached')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-frame-detached), [browserContext.on('framenavigated')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-frame-navigated), [browserContext.on('pageclose')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-page-close), [browserContext.on('pageload')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-page-load).

### Locators and Assertions
- New option `description` in [page.getByRole()](https://playwright.dev/docs/api/class-page#page-get-by-role) / [locator.getByRole()](https://playwright.dev/docs/api/class-locator#locator-get-by-role) / [frame.getByRole()](https://playwright.dev/docs/api/class-frame#frame-get-by-role) / [frameLocator.getByRole()](https://playwright.dev/docs/api/class-framelocator#frame-locator-get-by-role) for matching the [accessible description](https://www.w3.org/TR/wai-aria-1.2/#dfn-accessible-description).
- New option `pseudo` in [expect(locator).toHaveCSS()](https://playwright.dev/docs/api/class-locatorassertions#locator-assertions-to-have-css) reads computed styles from `::before` or `::after`.
- New option `style` in [locator.highlight()](https://playwright.dev/docs/api/class-locator#locator-highlight) applies extra inline CSS to the highlight overlay, plus new [page.hideHighlight()](https://playwright.dev/docs/api/class-page#page-hide-highlight) to clear all highlights.

### Network
- [webSocketRoute.protocols()](https://playwright.dev/docs/api/class-websocketroute#web-socket-route-protocols) returns the WebSocket subprotocols requested by the page.
- New option `noDefaults` in [browserType.connectOverCDP()](https://playwright.dev/docs/api/class-browsertype#browser-type-connect-over-cdp) disables Playwright's default overrides on the default context (download behavior, focus emulation, media emulation), so attaching to a user's daily-driver browser doesn't disturb its state.

### Errors and Reporting
- New [webError.location()](https://playwright.dev/docs/api/class-weberror#web-error-location) mirrors [consoleMessage.location()](https://playwright.dev/docs/api/class-consolemessage#console-message-location).
- [consoleMessage.location()](https://playwright.dev/docs/api/class-consolemessage#console-message-location) now exposes `line` / `column` properties (`lineNumber` / `columnNumber` are deprecated).
- New [testInfoError.errorContext](https://playwright.dev/docs/api/class-testinfoerror#test-info-error-error-context) surfaces additional diagnostic context, such as the aria snapshot of the receiver at the time of an `expect(...)` matcher failure.
- [reporter.onError()](https://playwright.dev/docs/api/class-reporter#reporter-on-error) now receives a `workerInfo` argument with details about the worker for fixture teardown errors.

### Test runner
- New `{testFileBaseName}` token in [testProject.snapshotPathTemplate](https://playwright.dev/docs/api/class-testproject#test-project-snapshot-path-template) — file name without extension.
- Test runner now errors when a config tries to override a non-option fixture, and rejects `workers: 0` or negative values.

## 🛠️ Other improvements
- HTML reporter:
  - `npx playwright show-report` accepts `.zip` files directly — no need to unzip first.
  - Steps that contain attachments inside nested children show an indicator on the parent step.
  - The `repeatEachIndex` is shown in the test header when non-zero.
- Trace Viewer adds a pretty-print toggle for JSON / form request and response bodies in the network details panel.

## Breaking Changes ⚠️
- Removed long-deprecated APIs:
  - `Locator.ariaRef()` — use the standard [locator.ariaSnapshot()](https://playwright.dev/docs/api/class-locator#locator-aria-snapshot) pipeline.
  - `handle` option on `BrowserContext.exposeBinding` and `Page.exposeBinding`.
  - `logger` option on `BrowserType.connect` and `BrowserType.connectOverCDP` — use [tracing](https://playwright.dev/docs/trace-viewer) instead.
  - Context options `videosPath` / `videoSize` — use `recordVideo` instead.

## Browser Versions
- Chromium 148.0.7778.96
- Mozilla Firefox 150.0.2
- WebKit 26.4

This version was also tested against the following stable channels:
- Google Chrome 147
- Microsoft Edge 147