QDOS 0.11

QDOS 0.11 was the second beta release of QDOS/86-DOS. It fixed an unspecified bug found in QDOS 0.10, and was compiled in July 1980, quickly after version 0.10.

State of Shipment
Similarly to QDOS 0.10, it is a mystery whether version 0.11 actually shipped to consumers. Tim Paterson revealed in an email to comp.os.cpm member bill_h that less than 30 people ever saw 86-DOS 0.3. Bill estimates that less than 10 people ever saw version 0.10 based on that figure, and that number is probably similar to the amount of people who ever saw QDOS 0.11.

Like QDOS 0.10, this could be explained in two ways: people may not have been aware of QDOS' existence, or it was never shipped. The former is supported by the fact that the first ad for QDOS/86-DOS showcases version 0.2, which came out after both 0.10 and 0.11. In addition, like the previous version, Microsoft still hadn't contacted Seattle Computer Products yet. The alternative, that version 0.11 was never shipped to the general public, would make sense based on the small number of people to ever see it in action.