cherry-pick(#30263): docs: add v1.43 release notes for language ports

docs/src/release-notes-csharp.md

@@ -4,6 +4,50 @@ title: "Release notes"
 toc_max_heading_level: 2
 ---
 
+## Version 1.43
+
+### New APIs
+
+- Method [`method: BrowserContext.clearCookies`] now supports filters to remove only some cookies.
+
+  ```csharp
+  // Clear all cookies.
+  await Context.ClearCookiesAsync();
+  // New: clear cookies with a particular name.
+  await Context.ClearCookiesAsync(new() { Name = "session-id" });
+  // New: clear cookies for a particular domain.
+  await Context.ClearCookiesAsync(new() { Domain = "my-origin.com" });
+  ```
+
+- New property [`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.
+
+  ```csharp
+  var locator = Page.Locator("iframe[name='embedded']");
+  // ...
+  var frameLocator = locator.ContentFrame;
+  await frameLocator.GetByRole(AriaRole.Button).ClickAsync();
+  ```
+
+- New property [`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.
+
+  ```csharp
+  var frameLocator = page.FrameLocator("iframe[name='embedded']");
+  // ...
+  var locator = frameLocator.Owner;
+  await Expect(locator).ToBeVisibleAsync();
+  ```
+
+### 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
 
 ### New Locator Handler

docs/src/release-notes-java.md

@@ -4,6 +4,50 @@ title: "Release notes"
 toc_max_heading_level: 2
 ---
 
+## Version 1.43
+
+### New APIs
+
+- Method [`method: BrowserContext.clearCookies`] now supports filters to remove only some cookies.
+
+  ```java
+  // Clear all cookies.
+  context.clearCookies();
+  // New: clear cookies with a particular name.
+  context.clearCookies(new BrowserContext.ClearCookiesOptions().setName("session-id"));
+  // New: clear cookies for a particular domain.
+  context.clearCookies(new BrowserContext.ClearCookiesOptions().setDomain("my-origin.com"));
+  ```
+
+- 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.
+
+  ```java
+  Locator locator = page.locator("iframe[name='embedded']");
+  // ...
+  FrameLocator frameLocator = locator.contentFrame();
+  frameLocator.getByRole(AriaRole.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.
+
+  ```java
+  FrameLocator frameLocator = page.frameLocator("iframe[name='embedded']");
+  // ...
+  Locator locator = frameLocator.owner();
+  assertThat(locator).isVisible();
+  ```
+
+### 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
 
 ### Experimental JUnit integration

docs/src/release-notes-python.md

@@ -4,6 +4,52 @@ title: "Release notes"
 toc_max_heading_level: 2
 ---
 
+## Version 1.43
+
+### New APIs
+
+- Method [`method: BrowserContext.clearCookies`] now supports filters to remove only some cookies.
+
+  ```python
+  # Clear all cookies.
+  context.clear_cookies()
+  # New: clear cookies with a particular name.
+  context.clear_cookies(name="session-id")
+  # New: clear cookies for a particular domain.
+  context.clear_cookies(domain="my-origin.com")
+  ```
+
+- 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.
+
+  ```python
+  locator = page.locator("iframe[name='embedded']")
+  # ...
+  frame_locator = locator.content_frame
+  frame_locator.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.
+
+  ```python
+  frame_locator = page.frame_locator("iframe[name='embedded']")
+  # ...
+  locator = frame_locator.owner
+  expect(locator).to_be_visible()
+  ```
+
+- Conda builds are now published for macOS-arm64 and Linux-arm64.
+
+### 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
 
 ### New Locator Handler