Swift

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Vala

A general purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. Objective-C was specifically designed for the Apple ecosystem and their respective application programming interfaces, Cocoa and Cocoa Touch for building applications for macOS and iOS. Since 2014 the Apple ecosystem rely on their new programming language Swift.

At Google I/O 2017, Kotlin was announced as to official development and programming language for Android. As it became the third language to be fully supported by the platform with Java and C++. However, Kotlin can also be used cross-paltform for native, server-side and web development as well as for data science projects. The language is statically typed and general-purpose, and is designed from the bottom up to increase developer happiness. 

Raku is a programming language that intends to carry forward the ideals of the Perl community. The project was formerly known as Perl 6 and was renamed to Raku as of October 2019. Raku introduces many modern concepts to the historical language while keeping Perl compatibility mode as a part of the specification. Raku is developed by an enthusiastic community of volunteers, that strive to push the language forward.

C is a free and open-source general-purpose, procedural programming language. The language supports structured programming, lexical variable scope, and recursion, with a static type system. By design, C provides constructs that map efficiently to typical machine instructions. C was first created and released in 1972 at Bell Labs by Dennis Ritchie, today C is used in systems where you need absolute control over memory management such as OS kernels and other mission critical software.

Developed by Bjarne Stroustrup at Bell Labs in 1979, C++ is a general-purpose programming language. C++ was designed as an extension of the work on the programming language C, or "C with Classes". The language run on the most common platforms such as macOS, Windows, Linux and various versions of UNIX. In modern releases of C++ object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation has been introduced.

C# is a general-purpose and multi-paradigm programming language. C# encompasses strong typing, lexically scoped, imperative, declarative, functional, generic, object-oriented, and component-oriented programming disciplines.