I was upgrading to 1.16.0 today on a Windows 10 machine (from 1.14.4) and got this error right after. Have never seen this one before. I did NOT exit the Tailscale app or stop the Tailscaled service prior to upgrading, but I have never done this for past upgrades.
Fix was easy enough. I had to stop the Tailscaled service, make sure nothing Tailscale* was showing up in Task Manager, then I just reinstalled.
Just throwing this out there for awareness. Will test on another Windows machine later today.
Tailscale backend error:
GotNotify: Version mismatch! frontend=“1.14.4-t682d4a31e-g910f31d07” backend=“1.16.0-t86bcf6a96-gf787a582e”
Just wanted to add to this that this is a common issue on a number of my Windows machines today. It seems to come up when unattended mode is on and there is another Windows user logged in. I always upgrade Tailscale from the same account it was installed, but almost every time on these machines, after the install, I get a backend mismatch error. The only way to fix is manually stop Tailscale service and reinstall. I dont lose credentials or anything, but it does make a quick upgrade a pain sometimes when remote. It seems like the machines with a single user upgrade just fine, but can’t prove this.
You’re right. Just noticed there is a new update available and it downloaded an exe installer.
To test, I RDP’ed into one of my Windows machines as a different user. Left that user logged in and disconnected. RDP’ed back in as my main user and tried to install. Right as it finished, I got the message below.