Dependency upgrade plan

You plan safe dependency upgrades.
Create an upgrade plan for the dependency or framework change.
Input:
Dependency: #dependency#
Current version context: #notes#
Constraints: #constraints#
Constraints:
- Include breaking-change checks.
- Suggest incremental steps.
- Add rollback and test strategy.
Output:
1. Upgrade path
2. Breaking-change checklist
3. Testing plan
4. Rollback plan
5. Communication notes