In our previous article, we explored the key signs that indicate it’s time to upgrade your Umbraco platform. If those signals resonated with your organisation, the next logical step is planning a clear and structured migration. With the release of the long-term supported Umbraco 17, organisations have a powerful opportunity to modernise their digital experience, but only with the right roadmap.
This guide outlines a practical approach to migrating to Umbraco 17, ensuring minimal disruption and maximum value.
Why Plan for Umbraco 17 Now?
Umbraco’s continued evolution towards a fully modern, cloud-ready platform means each major release delivers improved performance, scalability, and developer experience. Umbraco 17 has built further on the .NET ecosystem, enhanced composability, and strengthened content management flexibility.
However, migrations, especially from older versions, are not simple upgrades. They often involve:
- Replatforming to newer .NET frameworks
- Rebuilding templates or components
- Reviewing integrations and dependencies
- Ensuring content continuity
A structured roadmap ensures your migration is strategic rather than reactive.
Step 1: Audit Your Current Platform
Before any technical work begins, conduct a thorough audit of your existing Umbraco setup:
- Version and architecture (e.g. Umbraco 7, 8, 9, 10+)
- Custom code and packages
- Third-party integrations (CRM, e-commerce, APIs)
- Content structure and volume
- Performance bottlenecks
This stage identifies what can be reused, what needs rebuilding, and where opportunities exist to improve.
At i3 Digital, our discovery phase ensures no hidden risks derail your migration later.
Step 2: Define Migration Strategy
There are typically two migration paths:
1) Direct Upgrade (where feasible) - Suitable for newer Umbraco versions where upgrade paths exist.
2) Rebuild & Migrate (recommended for legacy systems) - For older platforms, this involves rebuilding the solution in Umbraco 17 and migrating content separately.
A rebuild is often more beneficial because it allows you to:
- Clean up technical debt
- Introduce modern UX/UI
- Improve performance and accessibility
- Align with business goals
Step 3: Re-architect for Modern Umbraco
Umbraco 17 will continue the trend toward modular, flexible architectures. This is the perfect time to rethink your solution:
- Adopt component-based design systems
- Implement headless or hybrid CMS approaches
- Improve content modelling for editors
- Optimise for SEO and performance
Rather than lifting and shifting your old site, focus on building a future-proof digital platform.
Step 4: Content Migration & Optimisation
Content migration is often underestimated. It’s not just about moving data, it’s about improving it.
- Clean outdated or duplicate content
- Restructure pages for better user journeys
- Optimise metadata and SEO
- Ensure accessibility compliance
Automation tools can help, but manual oversight is essential for quality.
Step 5: Test, Validate, and Launch
A successful migration depends on rigorous testing:
- Functional testing (forms, integrations, workflows)
- Performance and load testing
- Cross-device and browser compatibility
- SEO validation and redirect mapping
A phased or soft launch can help minimise risks while maintaining continuity.
Step 6: Ongoing Optimisation & Support
Migration isn’t the end, it’s the beginning of continuous improvement. Post-launch, focus on:
- Monitoring performance and analytics
- Iterating on user experience
- Keeping your platform secure and up-to-date
How i3 Digital Supports Your Umbraco 17 Journey
Migrating to Umbraco 17 is a strategic investment, but it requires expertise across development, UX, content, and infrastructure.
At i3 Digital, our Umbraco Website Design & Development Services are designed to:
- Deliver future-proof, scalable Umbraco solutions
- Combine technical excellence with user-centred design
- Ensure seamless migrations with minimal disruption
- Unlock the full potential of your digital platform
Whether you’re upgrading from a legacy version or planning a complete digital transformation, we guide you through every stage, from discovery to optimisation.
Conclusion
A successful Umbraco 17 migration isn’t just about adopting new technology, it’s about creating a stronger, more adaptable digital experience for your users.
By following a structured roadmap and partnering with experienced Umbraco specialists, you can turn a necessary upgrade into a powerful opportunity for growth.
Ready to start your Umbraco migration journey? Explore how i3 Digital can help you build a smarter, more effective website with our Umbraco expertise: Get in touch