Upgrade Devices and Services CDO provides a wizard that helps you upgrade the software images installed on your devices. FDM Software Upgrade PathsFDM-Managed Device Upgrade PrerequisitesUpgrade a Single FDM-Managed DeviceBulk FDM-Managed Devices UpgradeUpgrade an FDM-Managed High Availability PairUpgrade to Snort 3.0Revert From Snort 3.0 for FDM-Managed DeviceSchedule a Security Database UpdatePrerequisites for ASA and ASDM Upgrade in CDOUpgrade Bulk ASA and ASDM in CDOUpgrade ASA and ASDM Images on a Single ASAUpgrade ASA and ASDM Images in a High Availability PairUpgrade an ASA or ASDM Using Your Own Image