Migration to JSS into Sitecore Content SDK for Sitecore AI

If you want to modernise the front-end of your website, this blog is for you. It is an important guide to migrating from JSS to the Sitecore Content SDK.

As the Sitecore ecosystem evolves, front-end architecture is undergoing a fundamental transformation. JSS 22.x will reach the end of support in June 2026. For XM Cloud and Sitecore AI environments, JSS 23.x will not support Sitecore AI, and companies must act proactively.

The future of front-end development with Sitecore AI lies in the Sitecore Content SDK. This transition is not a routine upgrade. It is a major modernisation initiative that directly impacts service quality, governance, developer experience, and long-term roadmap alignment. 

We help enterprises execute safe, structured, and performance-optimised migrations from JSS to the Content SDK, combining deep Sitecore engineering expertise with AI-accelerated tooling. 

But what is the reason for this shift? The transition from JSS to the Content SDK is significant and is discussed below. 

End of Maintenance = Operational Risk

JSS 22.x support is scheduled to end in June 2026 for both Sitecore AI and XM Cloud environments. Unsupported front-end frameworks may expose organisations to the following challenges:

Security vulnerabilities

• Compatibility issues with Sitecore roadmap updates
• Technical debt accumulation
• Escalating long-term maintenance costs

Proactive migration reduces last-minute pressure and ensures continuity across your digital architecture.

What Is the Sitecore Content SDK?

The Sitecore Content SDK allows developers to integrate content from Sitecore AI with modern JavaScript applications. 

It provides:

• APIs and services to retrieve layout, content, and presentation data
• Close integration with the Sitecore AI Pages visual editor
• Native support for modern JavaScript frameworks
• Personalisation and experimentation capabilities 

At its core, it forms the foundation of Sitecore AI’s next-generation headless front-end. 

Key Architectural Benefits in the Content SDK

1. Alignment with the Sitecore AI Roadmap

The Content SDK is the foundation of the Sitecore AI stack, ensuring compatibility with current and future platform advancements.

2. Modern Front-End Development Using Next.js

The SDK provides a starter template built on Next.js, supporting:

• App Router (v1.3.1+)
• Server-Side Rendering (SSR)
• Static Site Generation (SSG)
• Locale-based routing

(This enables scalable, enterprise-grade, high-performance applications.) 

• Visual Editing Integration
• Direct integration with Sitecore AI Pages allows:
• Local development using live data
• Component testing before publishing
• Seamless collaboration between marketers and developers

Developers can create bespoke components locally and push them back to Sitecore AI for marketer-driven experience creation.

3. Built-In Personalization & A/B/n Testing

• The Content SDK supports:
• Component-level experimentation
• Variant deployment across audience segments
• Personalisation without custom integration code

This significantly reduces development effort while enabling data-driven optimisation. 

4. Multi-Site Support

For companies managing multiple properties, the SDK supports:

• Multi-site architecture
• Site-specific configurations
• Integration with Next.js internationalisation routing 

5. GraphQL Utilities

Built-in GraphQL utilities enable efficient retrieval of:

• Content data
• Layout definitions
• Site information 

6. Localisation data and dictionaries

This improves data management while maintaining architectural clarity.

• Analytics & Event Tracking
• Out-of-the-box integration with Sitecore Cloud SDK enables:
• Event tracking
• Analytics reporting
• Customer behaviour insights

No additional instrumentation complexity is required. 

Why Migration Is a Foundational Shift (Not Just a Version Upgrade)

Migrating from JSS to the Content SDK requires: 

• Architectural restructuring
• Routing model transformation
• Rendering pipeline adjustments
• Component refactoring
• Dependency realignment 

It is a front-end modernisation initiative that positions your organisation for: 

• Improved performance
• Faster deployment cycles
• Stronger governance
• Reduced long-term technical debt 

Addact's Structured Migration Framework

Our expert team handles Content SDK migrations with precision and engineering rigour.

1. Assess

• Comprehensive technical audit of:
• Existing JSS implementation
• Hosting and deployment pipelines
• Custom integrations and dependencies
• Performance bottlenecks 

2. Plan

We deliver an AI-enhanced migration blueprint including:

• File-by-file impact analysis
• Architectural transformation mapping
• Risk identification matrix
• Timeline and effort estimation 

3. Execute

• End-to-end engineering, including:
• Component refactoring
• Routing and rendering updates
• Testing and validation
• Performance benchmarking 

4. Support

• Post-migration services include:
• Launch readiness checks
• Knowledge transfer sessions
• Hyper-care stabilisation
• Governance documentation
• AI-Powered Migration Acceleration  

The Content SDK is open-source software under the Apache 2.0 license. Enterprises benefit with:

• Transparent development lifecycle
• Community-driven enhancements
• GitHub-based collaboration
• Version-controlled changelogs

This ensures long-term sustainability and ecosystem innovation

When Should You Begin Your Transition?

If your organisation:

• Runs JSS 22.x
• Plans to adapt or expand Sitecore AI
• Is looking to reduce future operational risks
• Seeks to modernise front-end performance

Now is the right time to start planning.

Early migration simplifies execution and helps to avoid governance bottlenecks as support deadlines approach.

Final Thoughts

The transition from JSS to the Sitecore Content SDK is not optional for forward-looking organisations. It is a strategic modernisation initiative aligned with the future of Sitecore AI.

• Organisations that act early can benefit from:
• Architectural resilience
• Faster time-to-market
• Enhanced developer productivity
• Stronger personalisation capabilities
• Reduced long-term risk

Addact combines Sitecore engineering expertise with AI-powered acceleration to deliver reliable, secure, and optimised migrations.

If you are evaluating your JSS roadmap, this is the right time to shift from maintenance mode to modernisation mode.

Reference:

Sitecore Content SDK for SitecoreAI | Sitecore Documentation

Mitesh Patel - Technical Head - ADDACT

Sitecore || XMCloud || OrderCloud Certified

Mitesh, a distinguished Technical Head at Addact/Addxp, is a prominent figure in Sitecore/XMCloud/OrderCloud certified writing. From Sitecore XM Cloud Developer Certification to Sitecore 10 .NET Developer Certification and Sitecore OrderCloud Certification, Mitesh's expertise is unparalleled. Mitesh is not only a skilled Sitecore CMS developer but also a 12+ years experienced software engineer proficient in various technologies such as MVC, ASP.Net, C#, jQuery, and Azure cloud/AWS.