Currently the process of migrating your projects' data to a new version of the app needs to be done manually. In addition, you would have to invite members to your shared projects again.
To update the app to the new version while keeping your projects' data, you would need to do the following:
1.
Before you install a new version of the app, go to the Project View and click and export the project in JSON format. Do this for every project's data you wanting to keep.
Only one person per shared project should take responsibility for migrating that project to the new version. Other project members should be notified, and invited to the migrated project. Note the coordination this requires.
We have to the intention to make updating the app more automatic and seamless in the future. Stay tuned for the updates.