Update docs changelog (for PR #57020) (#57143)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: hubwriter <[email protected]>
Co-authored-by: Copilot <[email protected]>

Author: 4 people

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Docs changelog
 
+**15 August 2025**
+
+When interacting with the GitHub MCP server for a public repository, push protection blocks secrets from appearing in AI-generated responses and also prevents secrets from being included in any actions you perform, such as creating an issue.
+
+See [Working with push protection and the GitHub MCP server](https://docs.github.com/en/code-security/secret-scanning/working-with-secret-scanning-and-push-protection/working-with-push-protection-and-the-github-mcp-server).
+
+<hr>
+
 **12 August 2025**
 
 OpenAI GPT-5 is now available in public preview for GitHub Copilot. GPT-5 is slowly rolling out to all paid Copilot plans and you will be able to access the model in GitHub Copilot Chat on github.com and Visual Studio Code (Agent, Ask, and Edit modes).