@mnr This means that you have a quarto installed that is in your PATH, and which is version 0.9.4.
RStudio IDE will use the one in PATH first if one is found.
Can you find this installation ? which quarto should give you the where it is.
You need to remove it or update it.
@JBig same for you. Check which version you have found in your PATH with quarto --version in terminal.
Probably 0.9.58 and you need a more recent one.
@akvsak I would not tweak anything inside <RStudioPath>. You shouldn't need to do that to make it work.
If you have a quarto found in your PATH (which quarto on UNIX), then it will be used by RStudio IDE, even if an older version. Be sure to update the quarto installation you may have made in the past on your system.
I am willing to help sort this out so that we can update our docs. Please tell me all how that goes following the above advice to change the version found in PATH