My onboard graphic is the Intel Corporation HD Graphics 530 (rev 06).
This graphics hardware is integrated inside of the Intel processor.
Intel only has one driver for all their graphics hardware that is integrated in their processors.
The i915 driver.
Fossapup64 is using this i915 driver, so you already are using the correct driver.
This one is very good and stable.
They finally got it right with this one.
Now, they do make updates to the i915 driver.
But the updates are to support the integrated graphics in their very newer processors and new features they may have.
Sometimes it has a bug fix.
Your Intel graphics is way down on the list of integrated graphics.
A newer i915 is not going to do anything for you.
Unless you are having issues that could be a bug in the driver.
The i915 driver is in the Linux kernel.
Changing to a newer kernel may give you a newer driver.
But because of the age of your graphics hardware, it will probably not be affected, by the newer driver.