Use a current employer description and the qualification evidence needed for the profession being claimed. Include prior records as relevant history, but do not present the old letter as an accurate description if the job has changed. A working comparison can help the adviser identify issues before deciding what belongs in the submission.
Create a factual change chronology
Record when new duties began, whether the legal employer changed, and which documents reflect the changes. Ask the employer to confirm the current role rather than merely updating the date on an earlier template. If the claimed profession changes, reassess the credential basis as well.
Keep the explanation proportional: the goal is a clear account of the proposed professional employment, not an unsupported argument that every added responsibility is covered by the earlier approval. Keep one household copy of the change chronology, because the person who needs it is often not the person who built it. A spouse dealing with a school registration, a landlord or a bank may need to explain the principal position without access to employer files.
Record when new duties began, whether the legal employer changed and which document reflects each change, then store it where the household can reach it. Ask the employer to confirm the current role rather than updating the date on an earlier template, since a stale description helps nobody and is the item most likely to be contradicted by something a family member says in passing.