Legacy Modernization Readiness Checklist

Is your .NET application ready to migrate to .NET 8? Use this checklist to assess your codebase and identify potential blockers before you start.

The Checklist

1. Dependencies

  • All NuGet packages have .NET 8 compatible versions
  • No dependencies on System.Web or WCF
  • Entity Framework 6 can be migrated to EF Core
  • Third-party components have modern alternatives

2. Testing

  • Critical business logic has unit test coverage
  • Integration tests exist for key workflows
  • API contract tests verify external interfaces

3. Architecture

  • Business logic is separated from infrastructure
  • Dependency injection is used (or can be added)
  • No global state or static singletons in critical paths

4. Infrastructure

  • Database schema is documented or reverse-engineerable
  • Deployment process is automated (CI/CD exists)
  • Rollback procedures are documented

5. Team Readiness

  • Team has experience with .NET Core / .NET 5+
  • Time is allocated for learning and migration work
  • Stakeholders understand the migration timeline

Scoring Your Assessment

15+ checkboxes: You're in good shape. Migration should be straightforward.

10-14 checkboxes: Some prep work needed, but migration is feasible.

Under 10: Consider a formal assessment before starting migration.

Want expert eyes on your codebase? We offer a 1-week Legacy Assessment that gives you a detailed migration roadmap, risk inventory, and effort estimates.

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