Downgrading from 09.0.10a or Later Releases to 08.0.70 or Earlier Releases

When downgrading from FastIron 09.0.10a or later releases to 08.0.70 or earlier releases on an ICX 7250, ICX 7450, or ICX 7650, licensed features will be lost unless there is a pre-installed XML license on the device. Licensed features that have an XML license will be retained during the downgrade.