| New architecture |
We made changes to the way the Eucalyptus components are installed and registered. We
separated the user-facing services from the database host (the CLC). This makes for better
security and for better availability of the user-facing services. For
more information, see Plan Your Installation. |
| New storage architecture |
We added an object storage system that provides a S3 API interface. This interface is
designed to scale out horizontally. For more information, see Object Storage. |
| New networking mode |
We added support for the new Edge networking mode. For more information, see the Installation Guide.. |
| New default administrator roles |
We added support for three default admininstrator roles. For more information, see
Administration Roles. |
| New ELB features |
We added support in elastic load balancing (ELB) to support session stickiness and SSL
certificates. For more information about sticky sessions, see Creating Elastic Load Balancing Sticky Sessions. For more information about SSL
certificates, see Uploading SSL Certificates for Elastic Load Balancing. |
| Deprecated console |
We deprecated the Administration Console. The IAM functionality was moved to the User
Console. The following tasks must now be done using the CLI: change VM types, create accounts,
delete accounts, download certificates, and generate reports. |
| Stock DHCP server package |
Previous versions of Eucalyptus applied a private DHCP entry to VNET_DHCPDAEMON for the Cluster
Controller (CC) and the Node Controller (NC). In 4.0.0, we recommend that the VNET_DHCPDAEMON file be edited to use the dhcpinstead of the dhcp41 file.
For more information, see "Switch to the Stock DHCP Package" in the 4.0.0 Eucalyptus Installation Guide. |
| New schemas |
We created new schemas for the backend services that correspond to the user-facing
services. For more information, see the Internal APIs section in Schema Documentation. |
| New technical preview feature |
We are offering CloudFormation templates in technical preview. For more information
about this feature, go to the draft
specification. For more information
about AWS CloudFormation go to Working
with AWS CloudFormation Templates. |