Container support (is it Docker? seems too early for RHEL to integrate Docker..? maybe it's just LXC?)
systemd is a big win (although a hot topic)
CentOS 7 shouldn't be lagging too far behind. The CentOS team recently got taken up with RHEL, so I think we can expect a CentOS update soon (can't wait!).
Red Hat employs a huge swathe of the systemd developers. It not be surprising at all to see it finally integrated in. If anything, it is surprising it took this long - systemd service files were designed to be significantly easier for service maintainers.
It's LXC. LXC has been around since 2008 (before Docker existed, since Docker builds atop it). And LXC isn't tied to a for-profit company, so RHEL would be more likely to include it.
"Enhanced application development, delivery, portability and isolation through Linux Containers, including Docker, across physical, virtual, and cloud deployments as well as development, test and production environments."
Was my thoughts exactly. Seems odd to put Docker into a RHEL release, especially since docker only 1.0'ed yesterday. RHEL usually goes for rock solid stable (typically older/matured) packages... LXC seems the natural fit... I could see Docker in RHEL 8 or something...
RHEL can go years without seeing a major version increase. In between now and then, a lot of people are going to want to use containers, including Docker. If RHEL doesn't support them, people are going to use Debian/Ubuntu/CoreOS/etc. instead. So Red Hat is supporting them. They know Ubuntu has a head start on them in the cloud, and they do not want to let them widen that gap.
Switching to XFS as the default filesystem.
Improved MS Active Directory integration
Container support (is it Docker? seems too early for RHEL to integrate Docker..? maybe it's just LXC?)
systemd is a big win (although a hot topic)
CentOS 7 shouldn't be lagging too far behind. The CentOS team recently got taken up with RHEL, so I think we can expect a CentOS update soon (can't wait!).