TL;DR Fedora 29 will be End Of Life soon. With it Fedora Atomic Host will have its last incremental release (based on the Fedora 29 stream). Please move to the Fedora CoreOS preview if you can.
Last year we introduced the plans for Fedora CoreOS including that Fedora CoreOS would be the successor to Fedora Atomic Host and Container Linux (from CoreOS Inc.). As part of that succession plan we decided that Fedora 29 Atomic Host would be the last stream of Fedora Atomic Host to be released.
Fedora 29 Atomic Host has served us well, but with Fedora 29 End of Life coming soon , so will the last release of Fedora 29 Atomic Host. The next release of Fedora 29 Atomic Host (in the next few weeks) will be the last two-week release. It will contain all of the latest content from Fedora 29. After that release, Fedora 29, and Fedora 29 Atomic Host will no longer receive any updates.
Please try out the Fedora CoreOS preview to help us get it towards stable. Documentation and download links can be found at https://getfedora.org/coreos/.