Container Linux release images will be signed with a new key due to scheduled subkey rotation in all channels, starting with the alpha release in two weeks (May 7). With today's promotion of version 2079.3.0 to stable, the tools shipped with Container Linux in all channels support the new subkey.
The new subkey is 67B3CA0E, which was added to the overall key 93D2DCB4. You can update the key from public PGP key servers or retrieve it from the following URL: https://coreos.com/security/image-signing-key/ If you have processes that download Container Linux images, please ensure you are using the updated key to continue cryptographically verifying the artifacts.
