Question Upgrade old Unity project to use shader graphs

Hi,

I have a large old Unity project that uses the old styled shaders. I want to upgrade it all to use shader graphs so i can make my own shaders.

Is there a tutorial on how to upgrade large project that uses the old style shaders to use the shader graphs?

I tried importing the light weight rendering pipeline, but it doesnt show up in the package manager for some reason.

Using Unity 2018.3 with a very old project that started with Unity 5.6

Maybe i should upgrade to 2019.3 before changing to shader graphs?

Anybody have any idea?

Thanks