Theoretical predictions in high energy physics are routine ly provided in the form of Monte Carlo generators. Comparisons of predictions from di fferent programs and/or different initialization set-ups are often necessary. MC-TESTER can be used for such tests of decays of intermediate states (particles or resonances) in a semi-automated way. Since 2002 new functionalities were introduced into the pac kage. In particular, it now works with theHepMC event record, the standard for C++ programs. The complete se tup for benchmarking the interfaces, such as interface betwe en τ-lepton production and decay, including QED bremsstrahlung effects is shown. The e xample is chosen to illustrate the new options introduced into the program. From the techni cal perspective, our paper documents software updates and supplements previous docum entation. As in the past, our test consists of two steps. Distinct Monte Carlo programs are run separately; events with decays of a chosen particle are sear ched, and information is stored by MC-TESTER. Then, at the analysis step, information from a pair of runs m ay be compared and represented in the form of tables and plots. Updates introduced in the progam up to version 1.24.3 are als o documented. In particular, new configuration scripts or script to combine results f rom multitude of runs into single information file to be used in analysis step are explained. To be submitted to Computer Physics Communications, CERN-LCGAPP-2008-02 IFJPAN-IV-2008-9 † This work is partially supported by EU Marie Curie Research Training Network grant under the contract No. MRTN-CT-2006-0355505 and by Polish Government grant N2 02 06434 (2008-2010).