> ## Documentation Index
> Fetch the complete documentation index at: https://docs.speckle.systems/llms.txt
> Use this file to discover all available pages before exploring further.
> ## Agent Instructions
> These docs contain multiple Speckle product experiences. For Speckle 2026.9, prefer /next/ pages for the topics and changes they cover. The navigation label Current does not override this version-specific precedence.
> Coverage under /next/ is incremental. Use Current documentation for unchanged topics and when a /next/ page says coverage is unavailable or explicitly refers you to Current. Do not infer a feature was removed from a missing page.
> Read the page-specific documentation status, applicability, affected guidance and replacement links in agent-only content. Impacted, changed and superseded apply only to the stated scope; they do not mean the entire feature is deprecated. Historical connector guides apply only to the legacy connector described.
> Match guidance to the customer's deployment version, model data format and connector. Respect plan, permission and compatibility restrictions. If an unknown version or data format changes the answer, ask a focused clarification; do not infer deployment version from the date alone.
# Navisworks in 2026.9
> 2026.8 is the last desktop connector. Use it for a 200 MB publish. Upload larger NWC and NWD files.
Documentation set: Speckle 2026.9. Status: current. Authority: canonical for this version and the coverage on this page.
Applies to version 2026.9, from 2026-09; this is not a rollout date for every deployment.
Authoritative Speckle 2026.9 documentation for the topic covered here. For Speckle 2026.9, prefer this page over conflicting earlier guidance. Follow the linked pages in the other documentation version for unchanged topics and where this page says coverage is not yet available. Respect data-format, deployment, plan, permission, and compatibility limitations stated in the page.
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** (2026.8 and earlier) in
the version selector.
There is no 2026.9 Navisworks desktop connector. **2026.8** is the last installer.
The 2026.8 connector remains the advised path for a publish around **200 MB**. For larger files,
upload an **NWC** or **NWD**. Speckle parses the file on the server, so you do not sit in Navisworks
watching a publish progress bar.
This page covers only that change. For install, sign-in, and publish in the 2026.8 connector, see
[How to use Speckle for Navisworks](/connectors/navisworks).
## What to do
* **About 200 MB.** Publish from the **2026.8** desktop connector. That is still the advised path
for a publish of that size. Do not wait for a 2026.9 installer.
* **Larger files.** Upload an NWC or NWD. Direct upload follows the general file-size limit of
**2 GB**. ACC sync of Navisworks files has been tested to **6 GB**. See [Direct
uploads](/connectors/direct-uploads/introduction) and [Autodesk Forma Data Management
(ACC)](/connectors/cloud-integrations/acc).
A file uploaded directly and the same model published from the desktop connector do not produce
identical Speckle data. See [Uploads and connectors produce different
datasets](/connectors/direct-uploads/introduction#uploads-and-connectors-produce-different-datasets).
## Data format if you stay on 2026.8
The 2026.8 connector publishes Speckle's current data model — the model in use before 2026.9.
Speckle may convert that published version to the 2026.9 format on the server. Treat that conversion
as best effort, not a guarantee.
* In the web app, versions stay readable either way.
* Speckle Intelligence can query only versions that are already in the 2026.9 format. See [Ask
questions about your models with Speckle Intelligence](/next/analytics/intelligence).
* If you read this data in a script, notebook, Automate function, or other API consumer, follow
[Data model migration for developers](/developers/migration/data-model-migration). Do not assume
the version was converted, and do not assume it stayed on the old model.
NWC and NWD uploads follow the upload path: new format by default, or the old format if the
workspace is in [compatibility mode](/next/it-admin/compatibility-mode) until **1 November 2026**.
Compatibility mode does not apply to desktop-connector publishes.
## Desktop-only workflows
If a file is larger than the upload or ACC sizes above, or you have a workflow that only the
desktop connector can do, tell Speckle in [speckle.community/help](https://speckle.community/help).
Those cases will be noted for consideration. As of now there is no 2026.9 connector.
## FAQ
Use the **2026.8** connector for a publish around **200 MB**, and when you need session filters
such as a selection, saved search, or saved view. Upload an NWC or NWD when the file is larger,
or when you do not want to leave Navisworks open on a publish progress bar.
Yes, on **2026.8**. That is the last installer. There is no 2026.9 package. New publishes from
that connector use the current data model. Server-side conversion to the 2026.9 format is not
guaranteed. If you consume the data in code, see [Data model migration for
developers](/developers/migration/data-model-migration).
Not as of now. If a file above the upload or ACC sizes, or a desktop-only workflow, blocks you,
post in [speckle.community/help](https://speckle.community/help) so it can be considered.
The desktop connector cannot match the throughput of server-side NWC and NWD ingest on large
files. Speckle takes that processing so you do not watch a progress bar in Navisworks. A 200 MB
publish from the 2026.8 connector is still the advised desktop path.
No. The Navisworks connector has always been publish-only. You still cannot load Speckle models
back into Navisworks.