CentOS 7 is an Enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor.
CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. (CentOS mainly changes packages to remove upstream vendor branding and artwork.) This operating system is developed by a small but growing team of core developers. In turn the core developers are supported by an active user community including system administrators, network administrators, enterprise users, managers, core Linux contributors and Linux enthusiasts from around the world.
CentOS is a community-supported, mainly free software operating system based on Red Hat Enterprise Linux (RHEL). It stands for Community ENTerprise Operating System. The developers use Red Hat’s source code to create a final product very similar to Red Hat Enterprise Linux.
CentOS has numerous advantages over some of the other clone projects including: an active and growing user community, quickly rebuilt, tested, and QA’ed errata packages, an extensive mirror network, developers who are contactable and responsive, multiple free support avenues including IRC Chat, Mailing Lists, Forums, a dynamic FAQ.
In CentOS 7 Build 1503 most notable changes are:
- As of March 2015 ABRT (>= 2.1.11-19.el7.centos.0.1) can report bugs directly to bugs.centos.org.
- Support for new processors (Intel Broadwell) and graphics (AMD Hawaii)
- Full support for LVM cache
- Ability to mount ceph block devices
- Updated Hyper-V network drivers
- New libguestfs features
- Full support for OpenJDK-1.8.0
- Improved clock stability (for PTP and NTP)
- Updated Networkmanager packages to version 1.0
- Updated docker to 1.4.1
- Updated OpenSSH to 6.6.1
- New package: Mozilla Thunderbird
- Update to numerous storage, network and graphics drivers
- Technology Preview: Support of the Btrfs file system, OverlayFS and the Cisco VIC kernel driver
There are some important changes to this release compared with the previous versions and highly recommended reading this announcement along with the Release Notes.