This year, in March 2015, we started the port of Calligra from Qt4/kdelibs4 to Qt5/KF5. Both, because Qt4/kdelibs4 is running out of support and because of the promised lands of better portability and more granular dependencies with Qt5/KF5.
A little more than a week ago at Linaro Connect SFO15 in Burlingame Jim Perrin of the CentOS project publicly announced the availability of the Xen hypervisor in CentOS 7 for ARM64 (also known as aarch64). Jim and I have been working closely with George Dunlap, maintainer of Xen in CentOS for the x86 architecture, to produce high quality Xen binaries for 64-bit ARM servers. As a result you can setup an ARM64 virtualization host with just a couple of yum commands.
Continuum for Windows 10 Is Phone Convergence, but Not as Advanced as Ubuntu's
Continuum for Windows 10 is Microsoft's idea of convergence, and it looks like they got things going. The Windows 10 Devices event that happened yesterday saw the official launch of this feature, albeit it's a little bit more complicated than you might suspect, and it's not really all that similar to what Canonical is doing with Ubuntu.
NethServer 6.7 Server-Oriented Linux Distro Is Coming Soon, Based on CentOS 6.7
The developers of the CentOS-based NethServer open-source server-oriented operating system have announced the immediate availability for download and testing of the first Release Candidate (RC) build of the upcoming NethServer 6.7 OS.