SKIP, previously known as Reflex, is a general purpose programming language developed as a research project at Facebook over the last 3 years. Facebook have finished development and authorized the language lead developer to release the project as open source. SKIP is available on Github under the MIT source license.
The leader developer made the following Tweet announcing the release today:
You can learn more about the language at http://skiplang.com/. The language can be downloaded as a Docker image, with full installation instructions available here. There is also a web based playground application for trying out SKIP on the website. SKIP is described as:
Skip is a general-purpose programming language that tracks side effects to provide caching with reactive invalidation, ergonomic and safe parallelism, and efficient garbage collection. Skip is statically typed and ahead-of-time compiled using LLVM to produce highly optimized executables.