docs: release notes 1.43 for js (#30128)

Author: dgozman

docs/src/release-notes-js.md

@@ -6,6 +6,81 @@ toc_max_heading_level: 2
 
 import LiteYouTube from '@site/src/components/LiteYouTube';
 
+## Version 1.43
+
+### New APIs
+
+- Method [`method: BrowserContext.clearCookies`] now supports filters to remove only some cookies.
+
+  ```js
+  // Clear all cookies.
+  await context.clearCookies();
+  // New: clear cookies with a particular name.
+  await context.clearCookies({ name: 'session-id' });
+  // New: clear cookies for a particular domain.
+  await context.clearCookies({ domain: 'my-origin.com' });
+  ```
+
+- New mode `retain-on-first-failure` for [`property: TestOptions.trace`]. In this mode, trace is recorded for the first run of each test, but not for retires. When test run fails, the trace file is retained, otherwise it is removed.
+
+  ```js title=playwright.config.ts
+  import { defineConfig } from '@playwright/test';
+
+  export default defineConfig({
+    use: {
+      trace: 'retain-on-first-failure',
+    },
+  });
+  ```
+
+- New property [`property: TestInfo.tags`] exposes test tags during test execution.
+
+  ```js
+  test('example', async ({ page }) => {
+    console.log(test.info().tags);
+  });
+  ```
+
+- New method [`method: Locator.contentFrame`] converts a [Locator] object to a [FrameLocator]. This can be useful when you have a [Locator] object obtained somewhere, and later on would like to interact with the content inside the frame.
+
+  ```js
+  const locator = page.locator('iframe[name="embedded"]');
+  // ...
+  const frameLocator = locator.contentFrame();
+  await frameLocator.getByRole('button').click();
+  ```
+
+- New method [`method: FrameLocator.owner`] converts a [FrameLocator] object to a [Locator]. This can be useful when you have a [FrameLocator] object obtained somewhere, and later on would like to interact with the `iframe` element.
+
+  ```js
+  const frameLocator = page.frameLocator('iframe[name="embedded"]');
+  // ...
+  const locator = frameLocator.owner();
+  await expect(locator).toBeVisible();
+  ```
+
+### UI Mode Updates
+
+![Playwright UI Mode](https://github.com/microsoft/playwright/assets/9881434/61ca7cfc-eb7a-4305-8b62-b6c9f098f300)
+
+* See tags in the test list.
+* Filter by tags by typing `@fast` or clicking on the tag itself.
+* New shortcuts:
+  - "F5" to run tests.
+  - "Shift F5" to stop running tests.
+  - "Ctrl `" to toggle test output.
+
+### Browser Versions
+
+* Chromium 124.0.6367.8
+* Mozilla Firefox 124.0
+* WebKit 17.4
+
+This version was also tested against the following stable channels:
+
+* Google Chrome 123
+* Microsoft Edge 123
+
 ## Version 1.42
 
 <LiteYouTube