Quick links:
Upgrading and Downloads:
If you have existing cloud-hosted 4D SYNCHRO Control projects, see the detailed instructions on upgrading cloud-hosted projects from 6.3 to 6.4.
If you are starting your cloud-hosted SYNCHRO Control project for the first time, see Collaborating on a cloud-hosted 4D project.
Click the links below to download the latest version or visit Software Downloads in the Bentley CONNECT Center.
Major features and improvementsfor Cloud-hosted 4D project through SYNCHRO Control
Forms integration
- Creating Forms from selected Tasks - Improved experience to create Forms directly from the selected Tasks, whether it is one or many Tasks. Form subjects are automatically populated based on Task names. Additionally, associated 3D, Resources and Tasks can be automatically captured with Forms created from Tasks- coming soon.

- Horizontal Forms layout - Improved user experience with capability to resize Forms grid, and side-by-side Forms grid and details UI. With more space, users are more encouraged to raise Forms directly in SYNCHRO 4D Pro and review Forms and comments from SYNCHRO Control or Field. Creating a closed 4D model feedback loop through Forms across mobile, web and desktop.

- Improve loading time for Forms - Performance improvement when working with a lot of Forms, now faster loading Forms when changing Form definition/ type or Refreshing list of Forms.
- Refresh in Forms not to change Form definition/ type - Improving user experience and now preserving same Form type as user refresh list of Forms.
- Dates in Forms to follow Time Display format and Language (Options> General in SYNCHRO 4D Pro).
- Buttons in Forms now have reduced width.
- Fixed issues with scrollbar and text visibility in Forms.
iModel integration/ 4D cloud collaboration
- Support for proxy network - Now users who have network traffic going through VPN with proxy service can open Control project from SYNCHRO 4D Pro without any problem. Settings are available in Options> General> HTTP Proxy settings.

- Select same value object is enabled for iModel in 3D Properties> User Fields - Allows iModel users to quickly select same value object by 3D user fields.
- Copying 3D User Field values using CTRL+C is possible for iModel in 3D Properties> User Fields - Allows iModel users to extract user field values for use elsewhere.
- SHIFT+M to switch manipulator when using Edit as assigned on iModel elements - Allows iModel users to take advantage of different manipulators while using Edit as Assign to transform 3D Resources as they are assigned to Tasks.
- One click to upgrade 4D cloud-collaboration project from 2020 (v6.3) to 2021 (v6.4) - Uninterrupted and swift upgrade experience without any wait and friction. No more downloading/ uploading .sp to redeploy as newer version. 2020 (v6.3) users will not get disconnected when project is upgraded to 6.4 and can still make changes. Those changes made by 6.3 users are available to 6.4 users who are connected to the project. As soon as any change is made by any 6.4 user, 6.3 users will be disconnected and must upgrade to 6.4 then connect to the project to continue working on it.

- Manual re-entering credentials is no longer required in SYNCHRO Control - Previously re-enter credentials are needed after a period to (re)request for approval on necessary permissions when working with 4D cloud-hosted collaboration project through SYNCHRO Control.
Plugins
- Update Navisworks plugin to support 2022
- Update Revit plugin to support 2022
- Revit: Add User Field naming option to better identify Element Properties - Adds option to distinguish parameters in identical names by concatenating additional parameter information when exporting user fields to 4D Pro.
- Revit: Support for nested components from Revit - Renamed prevoius option "Export with nested families separately" to export nested components to "Export nested components under host family" with option to "merge nested components" to reduce detailed 3D objects not needed for 4D planning purpose. Adds flexibilty to control 3D hierarchy and level of details when it comes to nested components. Additionally, now always exports two additional user fields "SuperElementID" and "TopSuperElementID" for easier selection of 3D by group if being used in conjunction with "Select same value objects" in 4D Pro.

- SPX generated by Revit plugin sometimes contain several entities with same external IDs
- Revit: Some 3D Elements have blank user field in SPX despite having that property assigned in Revit
Other improvements and fixes
- Task properties link tab over & under display set for Predecessors and Successors windows

- Animation export: Performance/Startup and fixes for longer animation export time in 6.4 and compare to 6.3
- Selection of 3D on large model causes Pro to be not responding
- Multiple crashes reported by users on specific models and registry settings
- Synchronize To IFC makes IFC corrupted
- Synchronise from IFC changes coordinates
- Sometimes can rename Task to a symbol when pressing Esc key immediately after Task name is selected
- When switching between the 3D Path keyframes using arrows the focus time is not snapped accordingly (if the path assigned to a resource group)
- Scheduler and Viewer do not run, dll's are missing
- Cannot import Excel
- Crash on export EVA data to Excel
- Crash on calculation area
- Crash on disable anti-aliasing
- Effects are not applied to animation export unless applied in 3D view
- Ambient Occlusion is enabled but not applied in AVI preview/export
- Fast emulation transparency makes some objects completely invisible with double precision
- Pan tool is not working properly in isometric view
- Lines are displayed in the wrong place
- Geometry change color if use DirectX with enable Double rendering.
- Geometry changes color and texture disappears when zooming in 3D View.
- Growing simulation does not work after converting units to meters
Resources
Contact Details
This release is in memoriam of Anton Anichkin (1988-2021), Ph.D., Developer (SYNCHRO 4D).
Anton joined the Synchro team in 2007 while studying at the HSE University Master's program. As a talented programmer, he made invaluable contributions to the development and evolution of Synchro Pro (recently SYNCHRO 4D product line). He combined product development with scientific research, which was highly praised by the scientific community.
While his contributions remain embedded in SYNCHRO 4D, he will be greatly missed.