They released the windows wallet v1.9.9 today but it was taken down few hours ago due to glitch being encountered in staking. People noticed that there something wrong in it and they reported it in their telegram channel. The devs swiftly removed the download link and they are currently making a patch for it. They advised for us to use the older version so that we will not encounter problems with it. They are trying to put out the patch today but we'll see if they'll gonna deliver to that timeline.