To select these Stacks you just have to open your app on bitrise.io,
go to the Workflow
tab (Workflow Editor), and on the Stack
tab select the Xcode 14.1.x
option and your next build will start on the corresponding stack.
Note: you can now select separate stacks for separate workflows!
Read more at: https://blog.bitrise.io/per-workflow-stack-selection-is-here.
You can find the system reports here:
If you’d like to add additional tools to be pre-installed you can find the instructions on GitHub, for both the Linux and for the macOS stacks.
Information about Stack types & update schedules can be found here: discuss.bitrise.io/t/281.