Dell provides support for 4-5 years after the release of a model -- this model was released in 2017, making it end of life.   You can likely find driver updates from Intel, etc. but won't see any further firmware updates for this system, which is end of life.  
Hello!Updated drivers and BIOS updates for the Vostro 3568 series have not been published for over a year.Microsoft implicitly provides the possibility to install Windows 11 and waives the exclusion due to the 7th generation Intel processor. Windows 11 can be legally installed on this laptop with a clean install. (TPM 2.0 is a factory feature)There are probably many Vostro 3568s still in operation in the world, because it was an extremely reliable type. My copy also works perfectly and runs Winows 11 flawlessly. (with new battery)Perhaps it would be possible to exceptionally extend the support period and issue at least an updated BIOS for this series.[IMAGE]
Why are there no updated drivers for Vostro 3568?