We used #'pharo9.x' in smalltalkCI baseline and seems to work well:

https://github.com/hpi-swa/smalltalkCI/blob/master/repository/BaselineOfSmalltalkCI.package/BaselineOfSmalltalkCI.class/instance/setUpPharo5AndGreaterPackages..st

On Fri, Jan 24, 2020 at 5:47 PM ducasse <stepharo@netcourrier.com> wrote:
Hi

I would like to adapt some baselines to Pharo90 and I���m wondering if we should not
add pharo9.x to a list somewhere.

S.