Well, that´s probably because Windows is one of the first OSes to get upgrades (alongside with other binary distributions that use the storagenode_updater mechanism) and also because there are a lot of SNOs running on Windows machines.
Also, I suppose Windows updates got more attention because the 1.6.3 update contains a bug pretty annoying for the SNO that caused the node termination.
That release was halted on the windows release phase and the issue was investigated and solved very fast by Storj team (
) , so there are some SNOs running on Windows and waiting for 1.6.4 to rollout in order to solve their issues:
In my particular case, I’m just trying to move away to a Linux and Docker releases, and it needs to be on the same version to do it in a safe way.