Languages are a beloved subject of debate and the kernels of some of the strongest developer communities. The choice of programming language matters deeply to developers because they want to keep their skills up to date and marketable. They matter to toolmakers too, because they want to make sure they provide the most useful SDKs. So which programming languages had notable changes in adoption trends in the last 3 years? Find the answers in our infographic with key findings from our Developer Economics 19th edition survey, which ran in June-August 2020 and reached 17,000 developers in 159 countries.
Java, with over 8M active users worldwide, is the cornerstone of the mobile app ecosystem – Android – as well as one of the most important general-purpose languages. It’s adoption may have remained stable in the past six months but, in the overall picture, the Java community has gained 1.6M developers since mid-2017, which corresponds to a 24% growth.
Kotlin is one of the fastest growing language communities, having increased more than two-fold in size since the end of 2017, from 1.1M in Q4 2017 to 2.3M in Q3 2020. This is also very evident from Kotlin’s ranking, where it moved from 11th to ninth place during that period – a trend that’s largely attributed to Google’s decision to make Kotlin its preferred language for Android development.
Swift surpassed Kotlin in popularity this year, after attracting slightly more net new developers in the first half of 2020 (400k vs 300k). Since Swift became the default language for development across all Apple platforms, the adoption of Objective C has been decreasing steadily. This phase-out from the Apple app ecosystem is also matched by a significant drop in the rank of Objective C, from ninth to 12th place.
Finally, the more niche languages – Go, Ruby, Rust, and Lua – are still much smaller, with up to 1.5M active software developers each. Ruby and Lua have been around for more than two decades now, but their communities have essentially stopped growing in the last three years. On the contrary, Go and Rust appear to be actively adding developers, although it is still unclear whether the two languages will climb the programming language ranking in the coming period.
What’s your favourite programming language? Take our Developer Economics 20th edition survey to support your choice!