Hi @Buddyn
We always recommend using the latest software releases and tool versions, especially if you are just getting started with the technology.
For S32K1 devices, the latest software release is RTD 3.0.0, which was developed and validated with S32 Design Studio (S32DS) 3.6.6. However, based on my experience, it also works well with newer S32DS 3.6.x versions. Therefore, I would recommend downloading and using the latest available S32DS 3.6 release.
This should be enough to get you started with the platform. Any additional software packages you may need will depend on your application's specific requirements.
To explore other software packages and examples available for S32K1 devices, you can navigate to S32K1 Reference Software.
BR, VaneB