The VX9000 is supplied into downloadable image images
          image 1) VX9000-5.9.1.4-004R.img 
This is the  full image contains all software images for all support access point
          image 2)VX9000-LEAN-5.9.1.4-004R.img 
The lean image has had the AP software images removed to reduce the size of the software build
To confirm the software images installed 
please use the following command 
         show device-image versions 
This will list all software versions installed
AP's will also adopt even if the there is a software mismatch.
show adoption status 
will tell you if the aps have been adopted, if there is a software mismatch this will show here.
Finally, the VX9000 does not automatically update the firmware 
to manually update firmware please use 
device-upgrade all