# general


05/05/2020, 5:57 PM
We are trying to deploy multiple pulumi stacks in parallel while there are stack references defined among those stacks. We defined internal guidelines to make sure we never make pulumi changes that change the value of the pulumi resources that are being referenced by another stack, which means during the paralel build of a set of pulumi stacks, it doesn’t matter if one stack is referencing an older state of another stack or a newer state. But we are wondering if pulumi actually support reading the stack reference while that stack is being deployed by another pulumi process?