As more and more workloads are being considered for containerization in the future and are finally landing in virtualized environments today, distributions remain a critical success factor and are more important than ever. Containers, like virtual machines, are not magical and rely on piles of software being assembled in a way that is repeatable, reliable, and functional. This is at the very heart of the problem that distributions have always solved. Each distribution is responsible for building, testing, and releasing software as well as managing the lifecycle of each application in the collection. Additionally, distributions do very important work in ensuring that various versions of upstream software work well together and can co-exist. Distributions are also, often responsible, for "de-vendoring" upstream software so that security fixes can be applied more quickly.