Usually you can install the latest Nikon firmware directly without first installing older missed versions. Firmware updates are often cumulative. However, there are exceptions, so you should always read Nikon’s release notes and installation instructions for your specific camera model before updating. If an intermediate version is required, Nikon will say so there.

To check your current firmware version on the camera, go to the Setup Menu and open the Firmware Version/Firmware Settings item.

To decide whether to update, review Nikon’s firmware download/support page for your model. That’s typically where Nikon provides the latest firmware, update instructions, and notes about fixes, added features, or compatibility changes.

As a general precaution, don’t assume newer firmware is always better for every user. Sometimes updates can change behavior or compatibility, so it’s worth reading the notes and user feedback first.