Upgrade and Downgrade Paths Supported

The README files of previous firmware releases have omitted supported upgrade and downgrade paths.

This table identifies supported firmware version upgrade and downgrade paths.

From To 1.1.x 1.3.x 2.0.x 2.1.2 - 2.1.6 2.1.7 - 2.1.9 1.1.x Upgrade or Downgrade Upgrade or Downgrade 1.3.x Upgrade or Downgrade Upgrade or Downgrade Upgrade or Downgrade Upgrade or Downgrade Upgrade Downgrade to 2.1.6 first 2.0.x Upgrade or Downgrade Upgrade or Downgrade Upgrade or Downgrade Upgrade Downgrade to 2.1.6 first 2.1.2 - 2.1.6 Upgrade or Downgrade Upgrade or Downgrade Upgrade or Downgrade Upgrade Downgrade to 2.1.6 first 2.1.7 - 2.1.9 Upgrade Downgrade to 2.1.6 first Upgrade Downgrade to 2.1.6 first Upgrade Downgrade to 2.1.6 first Upgrade or Downgrade

For example, upgrading from firmware version 1.1.2 to 1.3.5 is supported. However, upgrading from firmware version 1.1.2 to 2.1.5 is not. You must first upgrade from firmware version 1.1.2 to 1.3.x, and from firmware version 1.3.x to 2.1.5.

Similarly, downgrading from firmware version 2.1.6 to 2.0.7 is supported. However, downgrading from firmware version 2.1.9 to 2.0.7 is not. You must first downgrade from firmware version 2.1.9 to 2.1.6 using the downgrade version of firmware 2.1.6. Then you can downgrade from 2.1.6 to 2.0.7.