IJulia not updated to 1.1

I know I have no right to kvetch as I dont contribute to IJulia.
I am setting up a demo for the company I work for tomorrow, to show off Julia plotting some seismic data. I have a small example working in the REPL.
Now I Want to show the power of setting up Jupyter notebooks with Julia on your own laptop.
But IJulia is not offering me 1.1.0 notebooks - and I just spent an hour at 4am UK time on this version.

Sorry to the maintaniers of IJulia. Not worthy of me but arggghhh

IJulia is working flawlessly on julia 1.1.0. Maybe there is an issue with your kernelspecs. Try rebuilding IJulia, ] build IJulia.

If ] build IJulia works, there should be ~/.local/share/jupyter/kernels/julia-1.1/kernel.json in Linux, ~/Library/Jupyter/kernels/julia-1.1/kernel.json in macOS, %APPDATA%\jupyter\kernels\julia-1.1\kernel.json in Windows. https://jupyter.readthedocs.io/en/latest/projects/jupyter-directories.html#data-files

Thankyou both for the quick replies. I will do as you suggest.
I am using Windows 10 and I did have my PATH variable set to Julia 1.0.1 - and it looks like when building Jupyter I had a folder version 1.0 build in Appdata.
I will build again.