You can still have as many profiles as you want. (Google "ipython profile"). It is just that, with IPython 3 or later (or Jupyter 4+), you no are no longer forced to have a separate profile just to use Julia. Consequently, IJulia no longer sets up a profile by default.
- [julia-users] Default Ipython profile in Ijulia Jason Castiglione
- [julia-users] Default Ipython profile in Ijulia David P. Sanders
- [julia-users] Re: Default Ipython profile in Ij... Jason Castiglione
- [julia-users] Re: Default Ipython profile i... Steven G. Johnson