GNOME 3 and KDE 4.10 are the new available graphical environments.
This version provides many improvements like:
- a fully supported event MPM, improving asynchronous request process and performance,
- the native FastCGI support in the mod_proxy module,
- a reduced memory usage.
MariaDB is the direct replacement for MySQL with almost complete compatibility.
See MariaDB documentation.
PostgreSQL is another great Open Source relational database system.
See PostgreSQL documentation.
This new version brings the support for the SMB 3 protocol and for the Active Directory logon protocols used by Windows 2000 and above.
See Samba release notes.
OpenJDK 7 is now available with its performance improvements.
Source: Red Hat 7 Release Notes.