It's a Continuous Build
In order to shorten the time to market for each driver almost every code check-in triggers a complete driver build in its tree. With AMD having switched to a unified driver package for their Linux x86 and x86_64 architectures, the 32-bit, 64-bit, and multiple X version support can be found all within the triggered build. Not only does AMD's unified packaging make it easier for the end-user who has multiple systems with different platforms, but it also provides similar benefits to AMD engineers when testing the driver. A regular automated build process is able to shorten the testing time since it provides a history for managing regressions and providing greater consistency between builds while removing developer tweaks from any build. Installing the driver no matter the platform is also carried out in just one step as opposed to manually installing everything.