We were informed by a consultant that many past driver and firmware version updates need to be installed to bring them up to the latest version. Is that correct or are the updates supplied cumulative? We were under the impression that just the latest version update would be necessary.
Example drivers update page. See older version info at bottom
The recommendation by the consultant is to install the first and last update of each major version. This ends up being a dozen installs with reboots after each to bring drivers/firmware up to date for one device. They are also recommending BIOS and Chipset updates, bringing the total count of installs and reboots up to 20. Doesn't seem like the most efficient way to go about it but is that accurate?