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Folks, pls remind me where we ended up with ‘concurrency’? 

In the current implementation concurrency is a task policy (and not sure how much we tested it, not with unit testing/automated testing).

Also I recall discussing/ going back and forth re if concurrency is a task policy or it belongs to with_items, and at some point we admitted that Nikolay was right from the beginning when advocating for concurrency as with_item property. 

What’s the desired? 

This is not reopening the discussion: I just need to recall what the decision was :)

DZ.