Richard, Thanks for analysis. I had tried Google search but it seems the results were biased because of my search history. Our PPA does not have old version. Only the central download page in launchpad [1]. Also my observation is that Windows installer exe is getting downloaded more frequently than the source distribution. That is why I had a hunch that it is some third party website linking directly to specific file. [1] https://edge.launchpad.net/gnusim8085/+download Onkar
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