Porto is developed in C++11. We don't use exceptions. We don't use Boost.
Porto will support backward compatibility at least between minor version (e.g. 1.14 and 1.15).
Any kind of contribution is kindly welcome! Either you want to expand functionality, report a bug or add/fix the documentation, you can make a significant investment into the Porto project. Please, send your pull-request/issues via github.
Also, we are looking for a full-time developer: https://yandex.ru/jobs/vacancies/dev/cont_virtual_dev