Compare Current and 2026.9

This is 2026.9 documentation. Coverage here is incremental: a page exists only where 2026.9 differs or is newly documented. For any other topic, switch to Current in the version selector.

Use this page to see what 2026.9 changes for you, next to how Speckle works today. For the current product, switch to Current in the version selector. If you only publish and load through Speckle connectors, your day-to-day work stays the same. The rows below are the exceptions and dates that matter. For the full steps, see Speckle’s data model is changing.

What’s different

What you do	Today	In 2026.9	Learn more
Publish, load, and view	You publish and load through connectors and the web app	You still do. After your project moves to the new data format, those flows are faster	What to do next
Models you already published	Your existing models stay readable	They stay readable. New publishes use the new format going forward	What to do next
ACC sync or drag-and-drop	Uploads use today’s data format	Uploads move to the new format. If another tool still needs the old format, ask Speckle to turn on compatibility mode. That option ends 1 November 2026	Who should pay closer attention
Connector updates	Your current connectors keep working	Update them from 1 September 2026, and no later than 1 November 2026	What you should do now
Speckle Intelligence	It looks at properties on each object	It can also see how parts of a model relate to each other — what connects to what, and what contains what	What to do next
Data Validation	Checks, plus project standards on Enterprise	Project standards are not in 2026.9. Author checks. A later rollup from Checks to workspace standards is planned	Data Validation in 2026.9
Open a model in the web app	Current viewer: section box, Selection info, Filters	New viewer: hybrid load, docked Selection / Filters / Views, section planes	3D viewer in 2026.9
Compare model versions	··· View changes on a version opens a dedicated diff view	Deprecated — no diff view in the Models ··· menu. Ask Speckle Intelligence (Chat, the viewer sparkle, or a Report) to detect, report, and assess the impact of what changed	Ask Speckle Intelligence
Navisworks models	Publish from the desktop connector	No 2026.9 desktop connector. 2026.8 is last, and still advised at 200 MB. Larger NWC/NWD: upload to 2 GB, ACC tested to 6 GB	Navisworks in 2026.9
Trimble Connect	Not available	New beta cloud sync on Team and Enterprise. Service account for background downloads; personal Trimble ID to browse	Sync models from Trimble Connect

This table is a summary. Follow the linked page for steps and dates.

Connector-specific changes live under Publishing & Loading: Revit in 2026.9, Grasshopper in 2026.9, Power BI in 2026.9, Navisworks in 2026.9, and Trimble Connect. Viewer chrome, Selection, Filters, and Views are on 3D viewer in 2026.9. Until a 2026.9 page exists for another topic, use the Current docs.

If you build on Speckle

If you use SDKs, APIs, Automate, or a self-hosted server, see Data model migration for developers. That page covers SDK updates, compatibility mode for uploads, and when to stay on 2026.8. Holding notes for the other developer tabs are under Developers in this preview.

FAQ

Why isn't my connector in the table?

Most people who publish and load through Speckle connectors keep the same workflow. 2026.9 details for Revit, Grasshopper, Power BI, Navisworks, and Trimble Connect are under Publishing & Loading. Other design tools still use the Current connector guides.

What if I cannot find a 2026.9 page for something I use?

Use the Current documentation. If this preview has no page for that topic yet, the feature is still in the Current docs. It did not go away.

Do I need compatibility mode if I only publish from desktop connectors?

No. Compatibility mode is only for ACC sync and drag-and-drop uploads when another tool still expects the old format. It ends on 1 November 2026. See Who should pay closer attention.

Quick Reference

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Compare Current and 2026.9

What’s different

If you build on Speckle

FAQ

​What’s different

​If you build on Speckle

​FAQ

What’s different

If you build on Speckle

FAQ