Recommendations and considerations with multiple scenarios managing vCenter and ESXi versions when running vSphere environment and VCF Environment.
Note: Please review product interoperability at the following link for updated information before upgrading, Product Interoperability Matrix.
VMware by Broadcom general recommendations are as listed below.
NOTE: In some cases the ESXi version can be upgraded or can be of higher version in minor version update paths, especially when an express patch has been released for ESXi without a corresponding path for vCenter. For Example: From above, if the ESXi host has a patch release of ESXi 8.0 update1b then this does not require a vCenter upgrade since this is a minor version upgrade jump
NOTE: In some cases the ESXi version can be upgraded or can be of higher version in minor version update paths, especially when an express patch has been released for ESXi without a corresponding path for vCenter. For Example: From above, if the ESXi host has a patch release of ESXi 8.0 update1b then this does not require a vCenter upgrade since this is a minor version upgrade jump