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studioSL v2018.0529 has a number of minor bug fixes outlined in the release log.
One major enhancement, however, relates to the ability to import observed tracer data using the .obs.csv format and then exporting the data back to Excel with columns showing 1) storage capacity; 2) flow capacity; 3) Δ tracer mass / cumulative tracer mass injected; and 4) connected volume in addition to the usual columns of concentration and cumulative tracer mass produced/cumulative tracer mass injected . You can find a tutorial on how to use this new feature here.