The Windows client caches the current version for a while, so may not yet have v1.32.3 available on your device.
In that case, you can still pull the latest release from http://pkgs.tailscale.com/stable.
Tailscale admin here, politely requesting client update push capability. Being able to see endpoint version is helpful, I will be suspending unpatched endpoints in the near future.
Or Get Tailscale in the Windows Store so it could auto update for all the endpoints out in the wild I don't control (company laptops, users home PCs, etc). Trying to get TEN people to manually update today was a pain, I can't imagine even triple that.