As noted in the parent comment, the Open Container Format will supersede appc. It will also adopt a lot of the ideas from appc, as noted in the CoreOS announce

As noted in the parent comment, the Open Container Format will supersede appc. It will also adopt a lot of the ideas from appc, as noted in the CoreOS announcement [1]. [1] https://coreos.com/blog/app-container-and-the-open-container-project/ https://coreos.com/blog/app-container-and-the-open-container...