Thanks for reaching out!
The only current language supported by QMSI is the one included in ISSM. We assure you that we work to improve our products and bring more features to them. Hopefully languages such as C++ are added to QMSI in the future, nevertheless, the only one that is available right now is C.
We cannot disclose information about future releases, once they are made publicly available, a list of the new features will be published on the community. Also, there is no ETA for when the new version of ISSM will be released.
Please let us know if there is anything else we can help you with, we will be more than glad to help you in any way we can.