The developers have made a huge number of changes and improvements
SME Server 9.0 RC1, a simple, powerful, and secure Linux server for networking and communications for small and medium enterprises, is now available for download.SME Server 9.0 RC1 is based on CentOS 6.5, just like all the development versions that came before it, and contains a lot of improvements, changes, and new features. This is normal, especially with such a complex Linux distribution.
“SME Server is the leading Linux distribution for small and medium enterprises. SME Server is brought to you by Koozali Foundation, Inc., a non-profit corporation that exists to provide marketing and legal support for SME Server.”
“SME Server is freely available under the GNU General Public License and is only possible through the efforts of the SME Server community. However, the availability and quality of SME Server is dependent on meeting our expenses, such as hosting costs, server hardware, etc,” said the developers in the official announcement.
The previous update took care of the Heartbleed problem and the developers were quick to close that issue with an update for openSSL. The current RC1 is a little bit bigger and takes care of a number of problems that affected many aspects of the OS, including Backups, File Server, Localization, Mail Server, Server manager, Webmail and Groupware, Web Server, and more.
According to the changelog, Dar files are no longer excluded by default in line with the console backup, the workstation backup report has been simplified, Dar has been updated to version 2.4.10, Wake on LAN is now used before starting Backup with DAR, NFS syntax has been deprecated for the CIFS mount, a template for wide links has been added, support for Windows 8 domain joining & user login has been added, process limits are now applied to Dovecot, and qmail concurrency templates have been simplified.
Also, Packager and Vendor have been removed from the spec file, the donation text in server-manager has been renewed, the wording for the Software Update button has been changed, ssh-autoblock has been added for the external interface, obsolete VLAN code has been removed, an audit for groups has been added, the full names of users added in %pre have been updated, and IPv6 has been disabled with the default installation.
A complete changelog can be found in the official announcement. You can download SME Server 9.0 RC1 right now from Softpedia.
Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.