When I read the title, I thought it was a new operating system-level containerization image format for filesystem layers and runtime config. But it looks like "container format" is a more general term for a collection of multiple files or streams into one. https://en.wikipedia.org/wiki/Container_format TIL.
OS containers could use an update too, though. They're often so big and tend to use multiple tar.gz files.
OS containers could use an update too, though. They're often so big and tend to use multiple tar.gz files.