When attempting to upgrade HCX from version 4.11.3.0 to VCF HCX 9.0.0.0 or 9.0.1.0, the upgrade process may fail with the following error message.
Error: Upgrade from version 4.11.3.0 is not supported by this bundle.
Upgrade directly from version 4.11.3.0 to 9.0.0.0 or 9.0.1.0 is not supported.
From VMware HCX 4.11.3, the only supported upgrade path is to version 9.0.2.0 for now.
A direct upgrade from version 4.11.3.0 to 9.0.2.0 is supported.
For detailed instructions on downloading Broadcom products, patches, and software, please refer to the following KB: 142814
Reference: HCX Upgrade Path