A method begins by obtaining, for a set of data access requests to a set of storage units of a dispersed storage network, a storage-revision indicator from each of at least some storage units of the set of storage units, where the set of data access requests is regarding a data access transaction involving a set of encoded data slices. The method continues by generating an anticipated storage-revision indicator for the data access transaction based on a current revision level of the set of encoded data slices and a data access type of the data access transaction. The method continues by comparing the anticipated storage-revision indicator with the storage-revision indicators received from the at least some storage units. When a threshold number of the storage-revision indicators received from the at least some storage units substantially match the anticipated storage-revision indicator, the method continues by executing the data access transaction.