Hi,
The older version of SDK should be available in your current S32DS layout if you have the latest patch installed.
Anyway, SDK v2.9.0 was released in update 7: https://community.nxp.com/docs/DOC-341408
If you create a new project you can choose from different version of SDKs:
or create a new project form Example for specific SDK version:
Hope it helps.
Stan