I face misunderstandings in the relations between the Sitecore Content SDK, Sitecore JSS, and SitecoreAI from time to time. What is the end of support for Sitecore JSS? Is Content SDK completely different from JSS? And so on.
I decided to visualize it to answer these questions.
SitecoreAI support for JSS and Content SDK timeline
The first chart is the one most teams actually need. It shows which SDK versions SitecoreAI (XM Cloud) supports over time, where Content SDK was copied out of JSS in December 2024, and the dates that matter for planning an upgrade. Sitecore JSS 22 maintenance reaches end of life in June 2026, and SitecoreAI will not add support for any newer JSS version — Content SDK is the path forward.
Sitecore Content SDK and Sitecore JSS versions history
The second chart goes back to the beginning. Each JSS major version gets its own swim lane below the time axis, and Content SDK sits above it. The dashed arrow marks the December 2024 code copy: Content SDK started from a snapshot of JSS, with no shared git history. From there the two diverge — JSS continues for XM/XP, while Content SDK adds metadata editing mode, the Next.js App Router, and other optimizations.
Sitecore Content SDK and Sitecore JSS versions history (short version)
The same history, trimmed to the versions still relevant today. Older JSS majors (v11–v19) are omitted so the recent JSS line (v20–v22) and the full Content SDK line (v0.2.0 → v1.x → v2.x) are easy to read at a glance.
What this means for your project
If you run a Sitecore headless frontend, the takeaway is simple: Content SDK is where SitecoreAI is investing, and JSS support is winding down. New SitecoreAI projects should start on Content SDK, and existing JSS projects should plan the move before JSS 22 reaches end of life. The migration is mostly mechanical — Content SDK began as a copy of JSS — but the architecture and editing-mode story have moved on since the fork.
This is exactly why we rebuilt our Astro SDK on top of Content SDK — see Sitecore Astro Content SDK release. If you want help mapping your upgrade path from legacy XM/XP or JSS to Content SDK and SitecoreAI, contact us.
