For the second generation single bay My Cloud OS5 version 5.09.115 is the latest OS5 firmware for that device.
For the OS3 firmware, the latest firmware version for the second generation single bay/single drive My Cloud is 2.41.116. In order to upgrade a second gen single bay My Cloud to OS5 one has to install OS3 firmware version 2.41.116 according to WD’s OS5 announcement.
Like always, one can see the firmware version for their single bay/single drive My Cloud version in the My Cloud Dashboard Firmware field box.
OS3 Dashboard Example:
OS5 Dashboard Example:
