So far the IR-2m and IR-4 are not progressing well. There is only a single 20 IR-2m centrifuge cascade, and a single 40 IR-4 Cascade operating in the Research and Development area of the Pilot Fuel Enrichment Plant. Neither of these cascades are producing LEU as the product and tails are combined at the end of the research runs.
Protests in southern Syrian city after Druze cleric's death (AP)
from the article: Iran pauses uranium enrichment at Natanz nuclear plant