Flatcar Container Linux Long-Term Support (LTS) channel and advanced features now available to community

We are pleased to announce some significant enhancements to Flatcar Container Linux community images, with a Long-Term Support (LTS) channel and some advanced features that were previously only available to Kinvolk subscription customers. These changes are in response to requests from users and follow through on our commitment that the project be led by the community. LTS Flatcar Container Linux L