Update Selenium dependencies to 4.35.0

docs/BrowserTestingDependencies.md

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+# Browser Testing Dependencies
+
+This document describes the browser testing dependencies used in ASP.NET Core and how to keep them updated.
+
+## Current Dependencies
+
+### Selenium WebDriver
+- **Packages**: `Selenium.WebDriver`, `Selenium.Support`
+- **Current Version**: 4.34.0
+- **Configuration**: Defined in `eng/Versions.props` as `SeleniumWebDriverVersion` and `SeleniumSupportVersion`
+- **Usage**: Used for E2E testing in Components tests (`src/Components/test/E2ETest`)
+
+### Microsoft Playwright
+- **Package**: `Microsoft.Playwright`
+- **Current Version**: 1.54.0
+- **Configuration**: Defined in `eng/Versions.props` as `MicrosoftPlaywrightVersion`
+- **Docker Image**: `mcr.microsoft.com/playwright/dotnet:v1.54.0-jammy-amd64`
+- **Docker File**: `src/Components/benchmarkapps/Wasm.Performance/dockerfile`
+- **Usage**: Used for benchmarking applications
+
+## Update Process
+
+### Automated Update Script
+A PowerShell script exists at `eng/scripts/update-selenium-and-playwright-versions.ps1` that:
+1. Checks for the latest versions from NuGet.org
+2. Updates `eng/Versions.props` with new versions
+3. Updates the Playwright Docker image in the dockerfile
+4. Creates a branch and commit with the changes
+
+### Manual Update Process
+1. Check for latest versions available in the configured NuGet feeds (not NuGet.org directly)
+2. Update versions in `eng/Versions.props`:
+   - `<SeleniumWebDriverVersion>X.X.X</SeleniumWebDriverVersion>`
+   - `<SeleniumSupportVersion>X.X.X</SeleniumSupportVersion>`
+   - `<MicrosoftPlaywrightVersion>X.X.X</MicrosoftPlaywrightVersion>`
+3. Update Docker image version in `src/Components/benchmarkapps/Wasm.Performance/dockerfile`:
+   - `FROM mcr.microsoft.com/playwright/dotnet:vX.X.X-jammy-amd64 AS final`
+4. Verify that the Docker image version exists at https://mcr.microsoft.com/v2/playwright/dotnet/tags/list
+5. Test the build: `./restore.sh`
+
+### Version Alignment Requirements
+- Playwright NuGet package version must match the Docker image version
+- Both Selenium packages should use the same version number
+- Only use stable (non-prerelease) versions
+
+### NuGet Feed Considerations
+The repository uses internal Microsoft NuGet feeds rather than NuGet.org directly:
+- `dotnet-public` - Primary feed for stable packages
+- Other internal feeds for specific .NET versions
+
+This means that the latest versions on NuGet.org might not be immediately available in the internal feeds.
+
+## Verification
+
+To verify current dependency status:
+
+```bash
+# Check current versions
+grep -E "(SeleniumWebDriverVersion|SeleniumSupportVersion|MicrosoftPlaywrightVersion)" eng/Versions.props
+
+# Check Playwright Docker image
+grep "playwright/dotnet:" src/Components/benchmarkapps/Wasm.Performance/dockerfile
+
+# Test build
+./restore.sh
+```
+
+## Last Updated
+- **Date**: September 2, 2025
+- **Selenium Version**: 4.34.0 (latest available in internal feeds)
+- **Playwright Version**: 1.54.0 (aligned with Docker image)
+- **Status**: ✅ All dependencies current and aligned