A successful handover gives the next person enough information to operate, maintain, and improve a project without relying on undocumented assumptions.
Document how the system works
A handover should explain the project structure, runtime requirements, setup process, configuration, deployment steps, and external services. Record where environment variables belong, but never include real passwords, API keys, or private tokens in the documentation.
Describe the important workflows
Explain common user journeys, roles and permissions, expected outputs, and known limitations. Include troubleshooting steps for frequent failures and tell the next maintainer how to run the relevant tests.
Transfer ownership safely
Confirm who controls the domain, hosting, source repository, and third-party services. Provide access through the appropriate account-management process and remove credentials that are no longer required.
Developer handover checklist
- Keep source code in version control and document setup and configuration.
- Store secrets outside source code and restrict access to credentials.
- Test important business rules, validation, permissions, and failure paths.
- Log diagnostic details without exposing passwords, tokens, or personal data.
- Document deployment, rollback, backup, and recovery steps.
Verify before deployment
Test changed workflows in staging where possible. Check server logs, browser errors, response codes, and key user journeys after release. Measure the bottleneck before introducing complex optimisation.