"In November's edition of the TIOBE Index, Rust has dropped out of Top 10," writes I-Programmer, noting that Rust ceded the #10 position to Go. "At the same time, another Google-originated language, Dart, has entered the top 20 ousting Julia after only one month." TIOBE explains Dart's popularity is mainly being driven by Flutter, Google's framework for building cross-platform mobile applications. In fact, Flutter has become one of the major technologies for cross-platform mobile app development. The Dart language itself is not particularly unique, although it incorporates many modern programming language features. Its success is largely driven by the strength of the Flutter ecosystem and the convenience of developing applications for multiple platforms using a single codebase... [In November's ranking] Visual Basic has also lost two places, making room for R and SQL in the Top 10. Further down the ranking, Assembly has re-entered the Top 20. So TIOBE ranks the top 10 languages in November as Python, C, Java, C++, C#, JavaScript, R, SQL, Visual Basic, and Go. But I-Programmer points out that "At the top of the table, Java is back in the top 3, after over three years in 4th position," pushing C++ down to #4. Are some changes more significant than others? If you think of the ratings as shares of a pie divided into 100 pieces, there is one huge slice — Python, accounting for a over a fifth of the pie, then comes C with a slice slightly less than half of Python's. Java and C++ then have smaller slices... and C#'s share is around half of their average size. Over half the pie has now been shared between just five languages... — Next 5 (#6-10): 10.17% (JavaScript, R, SQL, Visual Basic, Go) — Next 10 (#11-20): 11.12% (Rust, PHP, Fortran, Scratch, Perl, MATLAB, Assembly, Swift, Delphi, Dart) — Next 30 (#21-50): 12.81% — Final 50 (#51-100): 12.93% [So in this month's chart...] Java has overtaken C++, but as you can see from this month's Top 10 chart they are in lock step and the difference between them is insignificant. More obvious is that Python is way ahead of all the competition and that C has an edge over Java and C++. For more discussion of this see TIOBE — Two To Rule Them All in which Mike James argued that this: confirms the standard model of programming - code is written in Python and C and everything else is just noise. Back in July we reported Rust Enters TIOBE Top 10. After four months in #10 Rust is now back at #11, which is still three places above its position, 14, a year ago. Given the way these rankings operate it only takes a very small month-on-month change for a language to lose its position and even, as has happened here it can gain in terms of its percentage ranking while still moving down. So Rust with 1.63% in November is now in #11 when it had been in #10 with 1.44%.

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