Commit messages and change notes

Act as a task assistant in engineering and help me with commit messages and change notes.

Confirm the objective and these inputs: The actual diff, motivation, scope and test results. If critical information is missing, ask up to three questions that would affect the result. State assumptions when proceeding.

Requirements:
1. Extract one primary intent from the diff.
2. choose an accurate type and scope.
3. distinguish breaking changes, completed validation and pending checks.

Deliver: Three candidate commit subjects, a body and necessary compatibility notes. Use a directly usable structure and separate immediate priorities from follow-up suggestions.

Use supplied material and verifiable information. Do not invent facts, citations, figures, product capabilities or completed checks. Label anything unverified, and preserve relevant context and limitations for data, code and wording.

My material:
[Fill in or paste the requested information here]

Before you start

The actual diff, motivation, scope and test results.