Coordination Space Versions

There are currently two versions of coordination spaces available with automatic clash turned on. The version you are using depends on the date that both your project and coordination spaces were created.

What version coordination space am I using?

In projects created after October 25, 2022, all coordination spaces with automatic clash turned on are version 2 (V2) coordination spaces.

In projects created before October 25, 2022:

Coordination spaces with automatic clash turned on that were created before August 3, 2023 are version 1 (V1) coordination spaces.
Coordination spaces with automatic clash turned on that were created after August 3, 2023 are V2, except for:
- Coordination spaces created against or within the Plans folder. These are always V1, even if created after August 3, 2023.

You can tell which version your coordination space is by doing the following:

Click the Module Selector > Project Admin > Services tab, select Model Coordination from the left panel and:
- Review the banner if shown at the top of the page.
- Check the Main folder path column for the relevant coordination space.
- Click the more menu in the row corresponding to the relevant coordination space, then click the View details option and check check the date the coordination space was created in the Other details section of the coordination space details panel.

Note: Coordination spaces with automatic clash turned off are not versioned and are unaffected by the differences described in the following section.

What are the differences between the versions?

There are several differences between V1 and V2 coordination spaces:

V2 coordination spaces only

Optimized to only check for clashes based on model content that has changed since the last clash check. V1 coordination spaces run clash detection between all models in the space each time new models are uploaded. This may result in a more efficient experience when working in V2 coordination spaces.
Clash results are calculated for Revit files using the master model view instead of using the model geometry in each Revit view. The master model view is a representation of all the geometry included in a Revit file.
Supports access to ongoing clash feature enhancements. Certain new features may not be available when working in V1 coordination spaces.
- Excluding model objects from clash detection is only supported for V2 coordination spaces.

V1 and V2 coordination spaces

V1 and V2 coordination spaces will both detect the same clashes, but calculate the numbers of clashes or clash groups slightly differently. This means that the numbers shown in the grid in the Clashes tab, the list in the Models tab, and the Clashes panel in the viewer, might be different between a V1 and V2 coordination space containing the same content.