02 — Code Updates / Migration Plan

Summary of changes

One paragraph: what changes, at what layer, and why.

Before / after

Before

// Current implementation sketch

After

// Target implementation sketch

File-by-file change list

File	Change	Risk	Notes
		Low/Med/High

New files

File	Purpose

Removed files

File	Reason for removal

Dependencies

• Added:
• Removed:
• Upgraded:

Breaking changes

Any change that requires coordination with consumers. List each with a migration note.

Testing strategy

• Unit:
• Integration:
• Smoke:
• Rollback test: