CentOS developers have been working on their version 7 release for months and now coming less than one month after RHEL7's official release is the CentOS update -- which is much better than the slow turnaround in seeing CentOS 6, while helping the situation now is the Red Hat and CentOS partnership announced at the beginning of 2014.
Details on CentOS 7 can be found via the CentOS7 release notes. Among the new features to CentOS 7 / RHEL 7 are the use of the Linux 3.10 kernel, support for Linux Containers, OpenJDK 7 as the default Java Development Kit, the switch over to systemd, the use of GRUB2 as the boot-loader, the XFS file-system by default, support for UEFI Secure Boot, and numerous other changes.
CentOS 7 can be downloaded at CentOS.org. The version is reflected as CentOS 7.0.1406 to now mark the calendar year/month for denoting future re-spins with the latest updated packages.