The current version is CCP4 7.0 (07 January 2016). The new packages include:
SHELX suite: co distribution for academic users
CCP4I2: new ccp4 interface
DIALS: data processing and integration
ARCIMBOLDO-LITE: molecular replacement pipeline
The updated packages include PHASER, XIA2, REFMAC, MONOMER LIBRARY, AMPLE, COOT, AIMLESS POINTLESS, CTRUNCATE, DIMPLE, BLEND and many more

CCP4 exists to produce and support a world-leading, integrated suite of programs that allows researchers to determine macromolecular structures by X-ray crystallography, and other biophysical techniques.

The latest version supports Mac OSX and Linux and requires X11. Source code is also available.