The latest version of MRCC was released on March 18, 2025.
The important new features and changes are as follows.

1. A detailed review of MRCC's current capabilities has been published in J. Phys. Chem. A 129, 2086 (2025). All users are requested to use the corresponding new citation format in any publication (see Sect. 4 of the manual). https://doi.org/10.1021/acs.jpca.4c07807

2. Density-based basis-set correction for double hybrid DFT methods. https://doi.org/10.1021/acs.jpclett.5c00122

3. Reduced-cost and parallel implementation of explicitly correlated MP2 and CCSD(T). https://doi.org/10.1021/acs.jctc.4c01777

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.