C# was named TIOBE’s Programming Language of the Year, while the index also pointed to a potential rise for TypeScript.

Another resurgent language is R, which returned to the top 10 in 2025, driven largely by continued growth in data science and statistical computing, Jansen said. The C language, now ranked second, and ...

The two languages currently play a major role in Microsoft’s products. C is deeply embedded in the Windows kernel and many low-level system components, including the Win32 APIs, while C++ is widely ...