Miscellaneous

• New Steps in Trace Viewer:
  

• New methodlocator.describe() to describe a locator. Used for trace viewer.

  button=page.get_by_test_id("btn-sub").describe("Subscribe button")button.click()

• python -m playwright install --list will now list all installed browsers, versions and locations.

Browser Versions

• Chromium 138.0.7204.4
• Mozilla Firefox 139.0
• WebKit 18.5

This version was also tested against the following stable channels:

• Google Chrome 137
• Microsoft Edge 137

Highlights

• New methodexpect(locator).to_contain_class() to ergonomically assert individual class names on the element.

  expect(page.get_by_role("listitem",name="Ship v1.52")).to_contain_class("done")

• Aria Snapshots got two new properties:/children for strict matching and/url for links.

  expect(locator).to_match_aria_snapshot("""  - list    - /children: equal    - listitem: Feature A    - listitem:      - link "Feature B":        - /url: "https://playwright.dev"""")

Miscellaneous

• New optionmax_redirects inapiRequest.new_context() to control the maximum number of redirects.
• New optionref inlocator.aria_snapshot() to generate reference for each element in the snapshot which can later be used to locate the element.

Breaking Changes

• Methodroute.continue() does not allow to override theCookie header anymore. If aCookie header is provided, it will be ignored, and the cookie will be loaded from the browser's cookie store. To set custom cookies, usebrowserContext.add_cookies().
• macOS 13 is now deprecated and will no longer receive WebKit updates. Please upgrade to a more recent macOS version to continue benefiting from the latest WebKit improvements.

Browser Versions

• Chromium 136.0.7103.25
• Mozilla Firefox 137.0
• WebKit 18.4

This version was also tested against the following stable channels:

• Google Chrome 135
• Microsoft Edge 135

Highlights

• New optionindexed_db forbrowserContext.storage_state() allows to save and restore IndexedDB contents. Useful when your application usesIndexedDB API to store authentication tokens, like Firebase Authentication.

  Here is an example following theauthentication guide:

  # Save storage state into the file. Make sure to include IndexedDB.storage=context.storage_state(path="state.json",indexed_db=True)# Create a new context with the saved storage state.context=browser.new_context(storage_state="state.json")

• New optionvisible forlocator.filter() allows matching only visible elements.

  # Ignore invisible todo items.todo_items=page.get_by_test_id("todo-item").filter(visible=True)# Check there are exactly 3 visible ones.expect(todo_items).to_have_count(3)

• New optioncontrast for methodspage.emulate_media() andbrowser.new_context() allows to emulate theprefers-contrast media feature.

• New optionfail_on_status_code makes all fetch requests made through theAPIRequestContext throw on response codes other than 2xx and 3xx.

Browser Versions

• Chromium 134.0.6998.35
• Mozilla Firefox 135.0
• WebKit 18.4

This version was also tested against the following stable channels:

• Google Chrome 133
• Microsoft Edge 133

Async Pytest Plugin

• Playwright's Pytest plugin now has support forAsync Fixtures.

Miscellaneous

• Added methodexpect(locator).to_have_accessible_error_message() to assert the Locator points to an element with a givenaria errormessage.

UI updates

• New button in Codegen for picking elements to produce aria snapshots.
• Additional details (such as keys pressed) are now displayed alongside action API calls in traces.
• Display ofcanvas content in traces is error-prone. Display is now disabled by default, and can be enabled via theDisplay canvas content UI setting.
• Call andNetwork panels now display additional time information.

Breaking

• expect(locator).to_be_editable() andlocator.is_editable() now throw if the target element is not<input>,<select>, or a number of other editable elements.

Browser Versions

• Chromium 133.0.6943.16
• Mozilla Firefox 134.0
• WebKit 18.2

This version was also tested against the following stable channels:

• Google Chrome 132
• Microsoft Edge 132

Highlights

#2679 - [Bug]: Warning: Validation of the RECORD file of playwright-1.49.0-py3-none-manylinux1_x86_64.whl failed

Browser Versions

• Chromium 131.0.6778.33
• Mozilla Firefox 132.0
• WebKit 18.2

This version was also tested against the following stable channels:

• Google Chrome 130
• Microsoft Edge 130

Aria snapshots

New assertionexpect(locator).toMatchAriaSnapshot() verifies page structure by comparing to an expected accessibility tree, represented as YAML.

page.goto("https://playwright.dev")expect(page.locator('body')).to_match_aria_snapshot('''  - banner:    - heading /Playwright enables reliable/ [level=1]    - link "Get started"    - link "Star microsoft/playwright on GitHub"  - main:    - img "Browsers (Chromium, Firefox, WebKit)"    - heading "Any browser • Any platform • One API"''')

You can generate this assertion withTest Generator or by callinglocator.ariaSnapshot().

Learn more in thearia snapshots guide.

Tracing groups

New methodtracing.group() allows you to visually group actions in the trace viewer.

# All actions between group and group_end# will be shown in the trace viewer as a group.page.context.tracing.group("Open Playwright.dev > API")page.goto("https://playwright.dev/")page.get_by_role("link",name="API").click()page.context.tracing.group_end()

Breaking:chrome andmsedge channels switch to new headless mode

This change affects you if you're using one of the following channels in yourplaywright.config.ts:

• chrome,chrome-dev,chrome-beta, orchrome-canary
• msedge,msedge-dev,msedge-beta, ormsedge-canary

After updating to Playwright v1.49, run your test suite. If it still passes, you're good to go. If not, you will probably need to update your snapshots, and adapt some of your test code around PDF viewers and extensions. Seeissue #33566 for more details.

Try new Chromium headless

You can opt into the new headless mode by using'chromium' channel. Asofficial Chrome documentation puts it:

New Headless on the other hand is the real Chrome browser, and is thus more authentic, reliable, and offers more features. This makes it more suitable for high-accuracy end-to-end web app testing or browser extension testing.

Seeissue #33566 for the list of possible breakages you could encounter and more details on Chromium headless. Please file an issue if you see any problems after opting in.

pytest test_login.py --browser-channel chromium

Miscellaneous

• There will be no more updates for WebKit on Ubuntu 20.04 and Debian 11. We recommend updating your OS to a later version.
• <canvas> elements inside a snapshot now draw a preview.
• Python 3.8 is not supported anymore.

Browser Versions

• Chromium 131.0.6778.33
• Mozilla Firefox 132.0
• WebKit 18.2

This version was also tested against the following stable channels:

• Google Chrome 130
• Microsoft Edge 130

WebSocket routing

New methodspage.route_web_socket() andbrowser_context.route_web_socket() allow to intercept, modify and mock WebSocket connections initiated in the page. Below is a simple example that mocks WebSocket communication by responding to a"request" with a"response".

defmessage_handler(ws:WebSocketRoute,message:Union[str,bytes]):ifmessage=="request":ws.send("response")page.route_web_socket("/ws",lambdaws:ws.on_message(lambdamessage:message_handler(ws,message)))

SeeWebSocketRoute for more details.

UI updates

• New "copy" buttons for annotations and test location in the HTML report.
• Route method calls likeroute.fulfill() are not shown in the report and trace viewer anymore. You can see which network requests were routed in the network tab instead.
• New "Copy as cURL" and "Copy as fetch" buttons for requests in the network tab.

Miscellaneous

• New methodpage.request_gc() may help detect memory leaks.
• Requests made byAPIRequestContext now record detailed timing and security information in the HAR.
• This version adds support for Python 3.13
• This version is the last version supporting Python 3.8

Browser Versions

• Chromium 130.0.6723.19
• Mozilla Firefox 130.0
• WebKit 18.0

This version was also tested against the following stable channels:

• Google Chrome 129
• Microsoft Edge 129

Network Tab improvements

The Network tab in the trace viewer has several nice improvements:

• filtering by asset type and URL
• better display of query string parameters
• preview of font assets

Miscellaneous

• Themcr.microsoft.com/playwright-python:v1.47.0 now serves a Playwright image based on Ubuntu 24.04 Noble.
  To use the 22.04 jammy-based image, please usemcr.microsoft.com/playwright-python:v1.47.0-jammy instead.
• The:latest/:focal/:jammy tag for Playwright Docker images is no longer being published. Pin to a specific version for better stability and reproducibility.
• TLS client certificates can now be passed from memory by passingcert andkey as bytes instead of file paths.
• no_wait_after inlocator.selectOption() was deprecated.
• We've seen reports of WebGL in Webkit misbehaving on GitHub Actionsmacos-13. We recommend upgrading GitHub Actions tomacos-14.

Browser Versions

• Chromium 129.0.6668.29
• Mozilla Firefox 130.0
• WebKit 18.0

This version was also tested against the following stable channels:

• Google Chrome 128
• Microsoft Edge 128

TLS Client Certificates

Playwright now allows to supply client-side certificates, so that server can verify them, as specified by TLS Client Authentication.

You can provide client certificates as a parameter ofbrowser.new_context() andapi_request.new_context(). The following snippet sets up a client certificate forhttps://example.com:

context=browser.new_context(client_certificates=[        {"origin":"https://example.com","certPath":"client-certificates/cert.pem","keyPath":"client-certificates/key.pem",        }    ],)

When using thePytest plugin, it can be added like this:

@pytest.fixture(scope="session")defbrowser_context_args(browser_context_args):return {**browser_context_args,"client_certificates": [            {"origin":"https://example.com","certPath":"client-certificates/cert.pem","keyPath":"client-certificates/key.pem",            }        ],    }

Trace Viewer Updates

• Content of text attachments is now rendered inline in the attachments pane.
• New setting to show/hide routing actions likeroute.continue_().
• Request method and status are shown in the network details tab.
• New button to copy source file location to clipboard.
• Metadata pane now displays thebase_url.

Miscellaneous

• Newmax_retries option inapiRequestContext.fetch() which retries on theECONNRESET network error.

Browser Versions

• Chromium 128.0.6613.18
• Mozilla Firefox 128.0
• WebKit 18.0

This version was also tested against the following stable channels:

• Google Chrome 127
• Microsoft Edge 127

Highlights

microsoft/playwright-java#1617 - [Bug]: Trace Viewer not reporting all actions
microsoft/playwright#31764 - [Bug]: some actions do not appear in the trace file

Browser Versions

• Chromium 127.0.6533.5
• Mozilla Firefox 127.0
• WebKit 17.4

This version was also tested against the following stable channels:

• Google Chrome 126
• Microsoft Edge 126