Its top 10 were JavaScript, Python, Java, PHP, C#, CSS, C++, TypeScript, Ruby, C, and Swift. Rust was in 19th spot. Notably, though, Java was not one of the languages to see much growth on GitHub.

In winning the designation for 2020, Python jumped 2.01 percentage points last year in the Tiobe Index of language popularity, edging out C++, which increased 1.99 percentage points.