vSphere Lifecycle Manager effectively, you must understand the basic concepts related to the way software is created, packaged, and distributed. vSphere 7.0 introduces a new model for software packaging and distribution.
VIBs, Bulletins, Components To understand the difference between vSphere Lifecycle Manager images and vSphere Lifecycle Manager baselines, you must understand the relation between the basic software packaging types that VMware, OEMs, and third-party vendors use to create and ship software updates.
ESXi Base Images and Vendor Add-Ons The ESXi base image is a collection of components that forms a complete, bootable ESXi image. OEMs pack one or multiple components into a unit called an add-on. You use vendor add-ons to customize an ESXi release for a family of servers.
Distribution Formats for Software Updates VMware, OEMs, and third-party software vendors must ship their software updates in a format that vSphere Lifecycle Manager supports and can consume.