Tailscale update command failing on Windows Server 2019

When I run tailscale update on my Windows server, via both CMD and PowerShell, I get the message showing the download size, followed immediately by encoding/hex: invalid byte: U+0069 'i'

Does anyone know why this is happening, and what the resolution is? Not a major problem, since I can always just download the latest update directly, but still would be nice.

Thanks for the report! This was a bug in our downloads server. We kicked it as a quick workaround and are working on a proper fix.


I was wondering if there was any information that I could look at related to the usage of this update method. I am trying to update a bunch of our servers in an automated way and came across this but cannot find any information on its usage.

Sorry for the hijack.