I just got one of the new style (square corners) My Passport external drives. It can not be seen by WD utilities nor cannot be seen by WD Security. I installed latest updates for those programs. They see old style external drives with no problems.
Windows 10 is seeing the new drive and I reading and writing with no problem.
Could not find a working firmware updater software link for the new drive. Do not know if any firmware updates are required.
Some system information for reference:
Name WD My Passport 25E2 USB Device
Media Type External hard disk media
Capability 3726.0 GB
Interface Type USB
Total Cylinders 486397
Total Heads 255
Total Sectors 7813967805
Total Tracks 124031235
Tracks Per Cylinder 255
Bytes Per Sector 512
Sectors Per Track 63
S.M.A.R.T Support Yes
Current Temperature 0C (32F)
Name Intel® 5 Series/3400 Series Chipset Family 4 Port SATA AHCI Controller - 3B29