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Preparing for Installation 5
• Upgrading Current WDM Installations Only:
· Planning for Upgrading - WDM 4.9 supports direct upgrades from WDM version
4.8.0 or 4.8.5. If you are running WDM version 4.7.0 or 4.7.1, you must first upgrade
to 4.7.2, and then upgrade to 4.8.5 before upgrading to 4.9. CAUTION: Upgrading
from WDM 4.7.2 to 4.8.5 is supported if the following hotfixes are installed in the
following order prior to installing WDM 4.8.5: HF04072025609 and then
HF04072036209.
· WDM 4.7.2 Installations Planning for V90L, V90LE, or V90LEW Devices Using
Non-PXE Imaging - If you have an existing WDM 4.7.2 installation containing V90L,
V90LE, or V90LEW devices, and you want to continue using Non-PXE imaging in
WDM 4.9, be aware of the following requirements before upgrading to WDM 4.9
(CAUTION: If you have devices running earlier builds than those described below,
you must re-image the devices with the latest firmware before you upgrade to WDM
4.9):
· If you have V90L and V90LE devices running XPE build 673 or later, you must
first upgrade your devices using the following package (obtained from Wyse)
before upgrading to WDM 4.9: MerlinBootAgentUpgradeXPE_VLE.zip
· If you have V90LEW devices running WES build 688 or later, you must first
upgrade your devices using the following package (obtained from Wyse) before
upgrading to WDM v4.9: MerlinBootAgentUpgradeWES_VLE.zip