If you have an existing cloud-hosted project which you have been accessing from 4D Pro, OpenViewer, or Scheduler version 6.3 (2020) and are ready to upgrade to version 6.4 (2021.1), follow the directions below. Please read all directions before installing version 6.4.

NOTE: These instructions are only for upgrading existing 4D iModels in Control. If you are upgrading from SWP (6.2 or older), upgrading a private project .sp from any version, or starting a new project, follow the directions in Setting up a 4D Project in SYNCHRO Control and simply leave the version as 6.4 (default).

RECOMMENDED:  Before installing SYNCHRO 4D Pro 6.4 a user with admin rights should consider opening any existing SYNCHRO Control projects in SYNCHRO 4D Pro version 6.3 and then select File > Save As to save a local copy of the project as an .SP file, in case user wants an .sp file in 6.3 as a backup. After this is done and you have your needed backup in 6.3, then 4D Pro version 6.4 may be installed. All users who will be accessing the cloud-hosted project from 4D Pro, OpenViewer, or Scheduler must be using the same version as set in SYNCHRO Control, so only upgrade the project version when all users are able to upgrade their SYNCHRO desktop products to the new version as well.

These steps must be performed by a user with administrative privileges for the project

1. Ensure that all users stop work on the project while the following process is performed. Users may view the project in SYNCHRO Control, but they should not submit any changes in SYNCHRO 4D Pro, SYNCHRO Field, OpenViewer or Scheduler
2. Prior to upgrading from 6.3 to 6.4, it is always best practice to open the Control project that you are about to upgrade in SYNCHRO 4D Pro 6.3 and go to File>Save As>Private Project. This is to make sure you have a local backup of .sp in 6.3 prior to the upgrade. 
3. In SYNCHRO Control, navigate to Administration>Manage iModel
4. Select the menu for the 4D iModel and choose Edit
   
5. Change the SYNCHRO Pro Version to 6.4 (from 6.3)
   
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6. Confirm upgrade
   
7. Press Upgrade
8. Sync will start the upgrade process (quite fast) and after it completes, you may open the project in version SYNCHRO 4D Pro, Scheduler, OpenViewer v6.4. 
   
9. Install SYNCHRO 4D Pro, OpenViewer or Scheduler version 6.4
10. You can now open the upgraded 4D Control project from SYNCHRO 4D Pro, OpenViewer or Scheduler version 6.4 and continue working and collaborating on your 4D cloud-hosted project through SYNCHRO Control.