We are pleased to share that this release includes aarch64 AMIs as well. Its
support in AWS was announced very recently 
https://aws.amazon.com/blogs/aws/new-ec2-instances-a1-powered-by-arm-based-aws-graviton-processors/.
An example of the diff between this and the previous released version (for x86_64) is:
ostree diff commit old: a10e5df10dd29683fd9b08df3cbd562b034768b4ca8ad52ba5c7620b789eb62c
ostree diff commit new: 0232d115fa5f1d4609dcf2eb90de228ccb08dbad1134b30a555d92ae676bb92d
Upgraded:
  cockpit-bridge 182-1.fc29 -> 183-1.fc29
  cockpit-docker 182-1.fc29 -> 183-1.fc29
  cockpit-networkmanager 182-1.fc29 -> 183-1.fc29
  cockpit-system 182-1.fc29 -> 183-1.fc29
  cryptsetup 2.0.5-1.fc29 -> 2.0.6-1.fc29
  cryptsetup-libs 2.0.5-1.fc29 -> 2.0.6-1.fc29
  dracut 049-11.git20181024.fc29 -> 049-25.git20181204.fc29
  dracut-config-generic 049-11.git20181024.fc29 -> 049-25.git20181204.fc29
  dracut-network 049-11.git20181024.fc29 -> 049-25.git20181204.fc29
  fedora-release 29-3 -> 29-5
  fedora-release-atomichost 29-3 -> 29-5
  glibc 2.28-20.fc29 -> 2.28-23.fc29
  glibc-all-langpacks 2.28-20.fc29 -> 2.28-23.fc29
  glibc-common 2.28-20.fc29 -> 2.28-23.fc29
  gnupg2 2.2.9-1.fc29 -> 2.2.11-1.fc29
  gnupg2-smime 2.2.9-1.fc29 -> 2.2.11-1.fc29
  kernel 4.19.3-300.fc29 -> 4.19.6-300.fc29
  kernel-core 4.19.3-300.fc29 -> 4.19.6-300.fc29
  kernel-modules 4.19.3-300.fc29 -> 4.19.6-300.fc29
  libarchive 3.3.3-1.fc29 -> 3.3.3-2.fc29
  libgcrypt 1.8.3-3.fc29 -> 1.8.4-1.fc29
  libreport-filesystem 2.9.6-1.fc29 -> 2.9.7-1.fc29
  libsolv 0.7.1-1.fc29 -> 0.7.1-2.fc29
  libxcrypt 4.4.0-1.fc29 -> 4.4.1-1.fc29
  nettle 3.4-5.fc29 -> 3.4.1rc1-1.fc29
  nss 3.39.0-2.fc29 -> 3.40.1-1.0.fc29
  nss-softokn 3.39.0-2.fc29 -> 3.40.1-1.0.fc29
  nss-softokn-freebl 3.39.0-2.fc29 -> 3.40.1-1.0.fc29
  nss-sysinit 3.39.0-2.fc29 -> 3.40.1-1.0.fc29
  nss-util 3.39.0-2.fc29 -> 3.40.1-1.0.fc29
  pam 1.3.1-3.fc29 -> 1.3.1-8.fc29
  polkit 0.115-2.fc29 -> 0.115-4.1.fc29
  polkit-libs 0.115-2.fc29 -> 0.115-4.1.fc29
  python-pip-wheel 18.0-4.fc29 -> 18.1-1.fc29
  python2-pip 18.0-4.fc29 -> 18.1-1.fc29
  python3-gobject-base 3.30.2-1.fc29 -> 3.30.4-1.fc29
  python3-pip 18.0-4.fc29 -> 18.1-1.fc29
  runc 2:1.0.0-57.dev.git9e5aa74.fc29 -> 2:1.0.0-59.dev.gitccb5efd.fc29
  shadow-utils 2:4.6-2.fc29 -> 2:4.6-4.fc29
  vim-minimal 2:8.1.527-1.fc29 -> 2:8.1.549-1.fc29  
x86_64 AMIs are here:
Fedora-AtomicHost-29-20181210.0.x86_64  ap-northeast-1  ami-01a1a979eedb139a8  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  ap-northeast-2  ami-07b5d0cd1e09c1f97  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  ap-south-1      ami-07d637099dbbc7baf  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  ap-southeast-1  ami-01869e59f160c2a8f  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  ap-southeast-2  ami-0290694b417464c66  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  ca-central-1    ami-0d4a4e0ece763cf4d  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  eu-central-1    ami-045b6673569dbf435  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  eu-west-1       ami-011b5a3ea7e037294  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  eu-west-2       ami-0b4da417be294f2d0  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  sa-east-1       ami-0820fdac8cc005164  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  us-east-1       ami-02221c5c80bb4675a  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  us-west-1       ami-06f96f7ac807cad66  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  us-west-2       ami-0fa24c8ff5d011f75  hvm  standard
Fedora-AtomicHost-29-20181210.0.x86_64  ap-northeast-1  ami-0e443dd7833acffae  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  ap-northeast-2  ami-0cecf0633abd5413a  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  ap-south-1      ami-018058b5346fd9bd9  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  ap-southeast-1  ami-084bb13cd64c92ef4  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  ap-southeast-2  ami-041741639960ee671  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  ca-central-1    ami-082244737f42a2acc  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  eu-central-1    ami-0951f992c913217b1  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  eu-west-1       ami-0d4292e4e03bbd6d9  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  eu-west-2       ami-0f03bc174cc7aecfb  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  sa-east-1       ami-03111e924e8ea4e1f  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  us-east-1       ami-0a9d6aa0dd13b75b5  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  us-west-1       ami-06345b2f7a4569296  hvm  gp2
Fedora-AtomicHost-29-20181210.0.x86_64  us-west-2       ami-0218b08ff408e2024  hvm  gp2
aarch64 AMIs are here:
Fedora-AtomicHost-29-20181210.0.aarch64  us-east-1       ami-00213bfafd96949e4  hvm  gp2
Fedora-AtomicHost-29-20181210.0.aarch64  us-west-2       ami-0619fb886287080a1  hvm  gp2
Fedora-AtomicHost-29-20181210.0.aarch64  eu-west-1       ami-0899a76b7173ccfa0  hvm  gp2
The Vagrant Cloud page with the new Atomic Host:
https://app.vagrantup.com/fedora/boxes/29-atomic-hosthttps://app.vagrantup.com/fedora/boxes/29-atomic-host/versions/29.20181210.0Thanks,
Fedora Atomic Working Group