Long in development, the new major release of the Python-to-C compiler sheds legacy Python support and readies Cython developers for big changes in Python.

Cython 0.25 appeared late last week with a bevy of improvements that benefit Python developers translating their projects into C, as well as C/C++ developers looking to interoperate with Python.

Cython gives faster C-like performance to Python code execution. "The memory leak consisted of a small constant amount of bytes in certain function calls from Cython code," explains Langa.