The latest version of MRCC is released on Sept 25, 2017.
The important new features and changes are as follows.
1) Triplet states and transition moments for reduced-cost excited-state approaches.
2) Quadratic SCF algorithm.
3) Improved three-center two-electron integral integral code.
4) A couple of bugs have been fixed and the manual has been improved.
It is recommended for every user to upgrade to this version.