Hello Niranjan,
The image you provided shows the Vision Extension Package for S32V23x v1.3. This package includes an integrated version of the Vision SDK. To find the version, you could look to the S32V23x_Extension_Package_Release_Notes.pdf. This is located at 'C:/NXP/S32DS.3.4/Release_Notes/S32V23x_Extension_Package_Release_Notes.pdf'
The Vision SDK version is listed in the Release Content section:

Each version contained some bug fixes and other improvements. In your case, we see one of the example projects was removed. There will be no further development efforts in S32 Design Studio to support newer versions of the Vision SDK nor are there plans to provide any patches/updates to existing versions.
My recommendation is to make a list of the versions you require for the course content you already have developed. This should include the following items:
1) S32 Design Studio
2) S32V2xx Development Package
3) Vision Extension Package for S32V23x
You indicated that you are unable to program the S32V234 hardware. As I understand, for the vision applications, the Linux BSP which is executed from the microSD card (I believer one is supplied with each EVB) is used for running them. The applications are loaded to the same microSD card within the LInux filesystem. The microSD should have been supplied with a standard SD card adapter which most PCs built in recent years support. You can also purchase cheap adapters that connect via USB port.
I would add to the above list, the version of the LInux BSP which is supported by the Vision SDK contained in the Vision Extension Package for S32V23x you are using.
Once you have this list, determine which items you are not able to access today from your NXP account and I can help to ensure you gain access to them. Please contact me with what you need access to.
After you have access to all of the items. I suggest you make them available to the students of your course on a local server. It will be unsustainable to provide each of them individually access to older versions of the packages. The base S32 Design Studio versions should remain available to all on our website, but you may want to have this on your local site as well.
As you indicated, it will not be easy to update the course materials to the latest versions of these tools. If they are working well for you now, then there is no reason to change them until you need to update the course content.
Best Regards,
Mike