We released an updated version of the Amazon Linux AMI earlier this week. It is available in all AWS Regions for all instance types.
Here's what's new:
- Default compiler upgraded from GCC 4.1 to GCC 4.4.
- The AMI kernel is now based on 220.127.116.11 release.
- An HVM AMI was released to support the Cluster Compute (cc1.4xlarge) and Cluster GPU (cg1.4xlarge) instance types.
- Default filesystem type for the AMI root filesystem has been changed from ext3 to ext4.
- The Amazon Linux AMI is using upstart instead of sysvinit when booting.
- The default Yum configuration on Amazon Linux AMI enables fail-over access to neighboring regions in case the repository in the local region is not accessible.
There's more information and a complete list of new and updated packages in the Amazon Linux Release Notes.