playwright/docs/src/release-notes-python.md

---
id: release-notes
title: "Release notes"
---

<!-- TOC -->

## Version 1.16

### 🎭 Playwright Library

#### `locator.wait_for`

Wait for a locator to resolve to a single element with a given state.
Defaults to the `state: 'visible'`.

Comes especially handy when working with lists:

```python
order_sent = page.locator("#order-sent")
order_sent.wait_for()
```

Read more about [`method: Locator.waitFor`].

### Docker support for Arm64

Playwright Docker image is now published for Arm64 so it can be used on Apple Silicon.

Read more about [Docker integration](./docker).

### 🎭 Playwright Trace Viewer

- run trace viewer with `npx playwright show-trace` and drop trace files to the trace viewer PWA
- better visual attribution of action targets

Read more about [Trace Viewer](./trace-viewer).

### Browser Versions

- Chromium 97.0.4666.0
- Mozilla Firefox 93.0
- WebKit 15.4

This version of Playwright was also tested against the following stable channels:

- Google Chrome 94
- Microsoft Edge 94

## Version 1.15

### 🖱️ Mouse Wheel

By using [`Page.mouse.wheel`](https://playwright.dev/python/docs/api/class-mouse#mouse-wheel) you are now able to scroll vertically or horizontally.

### 📜 New Headers API

Previously it was not possible to get multiple header values of a response. This is now  possible and additional helper functions are available:

- [Request.all_headers()](https://playwright.dev/python/docs/api/class-request#request-all-headers)
- [Request.headers_array()](https://playwright.dev/python/docs/api/class-request#request-headers-array)
- [Request.header_value(name: str)](https://playwright.dev/python/docs/api/class-request#request-header-value)
- [Response.all_headers()](https://playwright.dev/python/docs/api/class-response#response-all-headers)
- [Response.headers_array()](https://playwright.dev/python/docs/api/class-response#response-headers-array)
- [Response.header_value(name: str)](https://playwright.dev/python/docs/api/class-response#response-header-value)
- [Response.header_values(name: str)](https://playwright.dev/python/docs/api/class-response/#response-header-values)

### 🌈 Forced-Colors emulation

Its now possible to emulate the `forced-colors` CSS media feature by passing it in the [context options](https://playwright.dev/python/docs/api/class-browser#browser-new-context-option-forced-colors) or calling [Page.emulate_media()](https://playwright.dev/python/docs/api/class-page#page-emulate-media).

### New APIs

- [Page.route()](https://playwright.dev/python/docs/api/class-page#page-route) accepts new `times` option to specify how many times this route should be matched.
- [Page.set_checked(selector: str, checked: bool)](https://playwright.dev/python/docs/api/class-page#page-set-checked) and [Locator.set_checked(selector: str, checked: bool)](https://playwright.dev/python/docs/api/class-locator#locator-set-checked) was introduced to set the checked state of a checkbox.
- [Request.sizes()](https://playwright.dev/python/docs/api/class-request#request-sizes) Returns resource size information for given http request.
- [BrowserContext.tracing.start_chunk()](https://playwright.dev/python/docs/api/class-tracing#tracing-start-chunk) - Start a new trace chunk.
- [BrowserContext.tracing.stop_chunk()](https://playwright.dev/python/docs/api/class-tracing#tracing-stop-chunk) - Stops a new trace chunk.

### Browser Versions

- Chromium 96.0.4641.0
- Mozilla Firefox 92.0
- WebKit 15.0

## Version 1.14

#### ⚡️ New "strict" mode

Selector ambiguity is a common problem in automation testing. **"strict" mode**
ensures that your selector points to a single element and throws otherwise.

Pass `strict=true` into your action calls to opt in.

```py
# This will throw if you have more than one button!
page.click("button", strict=true)
```

#### 📍 New [**Locators API**](./api/class-locator)

Locator represents a view to the element(s) on the page. It captures the logic sufficient to retrieve the element at any given moment.

The difference between the [Locator](./api/class-locator) and [ElementHandle](./api/class-elementhandle) is that the latter points to a particular element, while [Locator](./api/class-locator) captures the logic of how to retrieve that element.

Also, locators are **"strict" by default**!

```py
locator = page.locator("button")
locator.click()
```

Learn more in the [documentation](./api/class-locator).

#### 🧩 Experimental [**React**](./selectors#react-selectors) and [**Vue**](./selectors#vue-selectors) selector engines

React and Vue selectors allow selecting elements by its component name and/or property values. The syntax is very similar to [attribute selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors) and supports all attribute selector operators.

```py
page.click("_react=SubmitButton[enabled=true]");
page.click("_vue=submit-button[enabled=true]");
```

Learn more in the [react selectors documentation](./selectors#react-selectors) and the [vue selectors documentation](./selectors#vue-selectors).

#### ✨ New [**`nth`**](./selectors#n-th-element-selector) and [**`visible`**](./selectors#selecting-visible-elements) selector engines

- [`nth`](./selectors#n-th-element-selector) selector engine is equivalent to the `:nth-match` pseudo class, but could be combined with other selector engines.
- [`visible`](./selectors#selecting-visible-elements) selector engine is equivalent to the `:visible` pseudo class, but could be combined with other selector engines.

```py
# select the first button among all buttons
button.click("button >> nth=0")
# or if you are using locators, you can use first, nth() and last
page.locator("button").first.click()

# click a visible button
button.click("button >> visible=true")
```

### Browser Versions

- Chromium 94.0.4595.0
- Mozilla Firefox 91.0
- WebKit 15.0


## Version 1.13

#### Playwright

- **🖖 Programmatic drag-and-drop support** via the [`method: Page.dragAndDrop`] API.
- **🔎 Enhanced HAR** with body sizes for requests and responses. Use via `recordHar` option in [`method: Browser.newContext`].

#### Tools

- Playwright Trace Viewer now shows parameters, returned values and `console.log()` calls.

#### New and Overhauled Guides

- [Intro](./intro.md)
- [Authentication](./auth.md)
- [Chome Extensions](./chrome-extensions.md)


#### Browser Versions

- Chromium 93.0.4576.0
- Mozilla Firefox 90.0
- WebKit 14.2

#### New Playwright APIs

- new `baseURL` option in [`method: Browser.newContext`] and [`method: Browser.newPage`]
- [`method: Response.securityDetails`] and [`method: Response.serverAddr`]
- [`method: Page.dragAndDrop`] and [`method: Frame.dragAndDrop`]
- [`method: Download.cancel`]
- [`method: Page.inputValue`], [`method: Frame.inputValue`] and [`method: ElementHandle.inputValue`]
- new `force` option in [`method: Page.fill`], [`method: Frame.fill`], and [`method: ElementHandle.fill`]
- new `force` option in [`method: Page.selectOption`], [`method: Frame.selectOption`], and [`method: ElementHandle.selectOption`]

## Version 1.12

#### 🧟‍♂️ Introducing Playwright Trace Viewer

[Playwright Trace Viewer](./trace-viewer.md) is a new GUI tool that helps exploring recorded Playwright traces after the script ran. Playwright traces let you examine:
- page DOM before and after each Playwright action
- page rendering before and after each Playwright action
- browser network during script execution

Traces are recorded using the new [`property: BrowserContext.tracing`] API:

```python
browser = chromium.launch()
context = browser.new_context()

# Start tracing before creating / navigating a page.
context.tracing.start(screenshots=True, snapshots=True)

page.goto("https://playwright.dev")

# Stop tracing and export it into a zip archive.
context.tracing.stop(path = "trace.zip")
```

Traces are examined later with the Playwright CLI:


```sh
playwright show-trace trace.zip
```

That will open the following GUI:

![image](https://user-images.githubusercontent.com/746130/121109654-d66c4480-c7c0-11eb-8d4d-eb70d2b03811.png)

👉 Read more in [trace viewer documentation](./trace-viewer.md).


#### Browser Versions

- Chromium 93.0.4530.0
- Mozilla Firefox 89.0
- WebKit 14.2

This version of Playwright was also tested against the following stable channels:

- Google Chrome 91
- Microsoft Edge 91

#### New APIs

- `reducedMotion` option in [`method: Page.emulateMedia`], [`method: BrowserType.launchPersistentContext`], [`method: Browser.newContext`] and [`method: Browser.newPage`]
- [`event: BrowserContext.request`]
- [`event: BrowserContext.requestFailed`]
- [`event: BrowserContext.requestFinished`]
- [`event: BrowserContext.response`]
- `tracesDir` option in [`method: BrowserType.launch`] and [`method: BrowserType.launchPersistentContext`]
- new [`property: BrowserContext.tracing`] API namespace
- new [`method: Download.page`] method

## Version 1.11

🎥  New video: [Playwright: A New Test Automation Framework for the Modern Web](https://youtu.be/_Jla6DyuEu4) ([slides](https://docs.google.com/presentation/d/1xFhZIJrdHkVe2CuMKOrni92HoG2SWslo0DhJJQMR1DI/edit?usp=sharing))
- We talked about Playwright
- Showed engineering work behind the scenes
- Did live demos with new features ✨
- **Special thanks** to [applitools](http://applitools.com/) for hosting the event and inviting us!

#### Browser Versions

- Chromium 92.0.4498.0
- Mozilla Firefox 89.0b6
- WebKit 14.2

#### New APIs

- support for **async predicates** across the API in methods such as [`method: Page.waitForRequest`] and others
- new **emulation devices**: Galaxy S8, Galaxy S9+, Galaxy Tab S4, Pixel 3, Pixel 4
- new methods:
    * [`method: Page.waitForURL`] to await navigations to URL
    * [`method: Video.delete`] and [`method: Video.saveAs`] to manage screen recording
- new options:
    * `screen` option in the [`method: Browser.newContext`] method to emulate `window.screen` dimensions
    * `position` option in [`method: Page.check`] and [`method: Page.uncheck`] methods
    * `trial` option to dry-run actions in [`method: Page.check`], [`method: Page.uncheck`], [`method: Page.click`], [`method: Page.dblclick`], [`method: Page.hover`] and [`method: Page.tap`]

## Version 1.10

- [Playwright for Java v1.10](https://github.com/microsoft/playwright-java) is **now stable**!
- Run Playwright against **Google Chrome** and **Microsoft Edge** stable channels with the [new channels API](./browsers).
- Chromium screenshots are **fast** on Mac & Windows.

#### Bundled Browser Versions

- Chromium 90.0.4430.0
- Mozilla Firefox 87.0b10
- WebKit 14.2

This version of Playwright was also tested against the following stable channels:

- Google Chrome 89
- Microsoft Edge 89

#### New APIs

- [`browserType.launch()`](./api/class-browsertype#browsertypelaunchoptions) now accepts the new `'channel'` option. Read more in [our documentation](./browsers).


## Version 1.9

- [Playwright Inspector](./inspector.md) is a **new GUI tool** to author and debug your tests.
  - **Line-by-line debugging** of your Playwright scripts, with play, pause and step-through.
  - Author new scripts by **recording user actions**.
  - **Generate element selectors** for your script by hovering over elements.
  - Set the `PWDEBUG=1` environment variable to launch the Inspector

- **Pause script execution** with [`method: Page.pause`] in headed mode. Pausing the page launches [Playwright Inspector](./inspector.md) for debugging.

- **New has-text pseudo-class** for CSS selectors. `:has-text("example")` matches any element containing `"example"` somewhere inside, possibly in a child or a descendant element. See [more examples](./selectors.md#text-selector).

- **Page dialogs are now auto-dismissed** during execution, unless a listener for `dialog` event is configured. [Learn more](./dialogs.md) about this.

- [Playwright for Python](https://github.com/microsoft/playwright-python) is **now stable** with an idiomatic snake case API and pre-built [Docker image](./docker.md) to run tests in CI/CD.

#### Browser Versions

- Chromium 90.0.4421.0
- Mozilla Firefox 86.0b10
- WebKit 14.1

#### New APIs
- [`method: Page.pause`].


## Version 1.8

- [Selecting elements based on layout](./selectors.md#selecting-elements-based-on-layout) with `:left-of()`, `:right-of()`, `:above()` and `:below()`.
- Playwright now includes [command line interface](./cli.md), former playwright-cli.
  ```bash js
  npx playwright --help
  ```
  ```bash python
  playwright --help
  ```
- [`method: Page.selectOption`] now waits for the options to be present.
- New methods to [assert element state](./actionability#assertions) like [`method: Page.isEditable`].

#### New APIs

- [`method: ElementHandle.isChecked`].
- [`method: ElementHandle.isDisabled`].
- [`method: ElementHandle.isEditable`].
- [`method: ElementHandle.isEnabled`].
- [`method: ElementHandle.isHidden`].
- [`method: ElementHandle.isVisible`].
- [`method: Page.isChecked`].
- [`method: Page.isDisabled`].
- [`method: Page.isEditable`].
- [`method: Page.isEnabled`].
- [`method: Page.isHidden`].
- [`method: Page.isVisible`].
- New option `'editable'` in [`method: ElementHandle.waitForElementState`].

#### Browser Versions

- Chromium 90.0.4392.0
- Mozilla Firefox 85.0b5
- WebKit 14.1

## Version 1.7

- **New Java SDK**: [Playwright for Java](https://github.com/microsoft/playwright-java) is now on par with [JavaScript](https://github.com/microsoft/playwright), [Python](https://github.com/microsoft/playwright-python) and [.NET bindings](https://github.com/microsoft/playwright-dotnet).
- **Browser storage API**: New convenience APIs to save and load browser storage state (cookies, local storage) to simplify automation scenarios with authentication.
- **New CSS selectors**: We heard your feedback for more flexible selectors and have revamped the selectors implementation. Playwright 1.7 introduces [new CSS extensions](./selectors.md) and there's more coming soon.
- **New website**: The docs website at [playwright.dev](https://playwright.dev/) has been updated and is now built with [Docusaurus](https://v2.docusaurus.io/).
- **Support for Apple Silicon**: Playwright browser binaries for WebKit and Chromium are now built for Apple Silicon.

#### New APIs

- [`method: BrowserContext.storageState`] to get current state for later reuse.
- `storageState` option in [`method: Browser.newContext`] and [`method: Browser.newPage`] to setup browser context state.

#### Browser Versions

- Chromium 89.0.4344.0
- Mozilla Firefox 84.0b9
- WebKit 14.1