December 2018's Release Radar highlights several notable software releases from the GitHub community, showcasing a diverse array of projects that have reached significant milestones. Noteworthy releases include fx 10.0, a command-line tool for JSON manipulation with new features like regular expression search; Vault 1.0, which enhances secure secret management with cloud unsealing and OpenAPI specifications; and PyTorch 1.0, a deep learning library introducing a just-in-time compiler and experimental C++ interface. Other releases feature NES.css 1.0, a CSS framework for retro 8-bit aesthetics; Vitess 3.0, with improvements for MySQL database clusters; SpaceVim 1.0, which enriches the Vim editor with IDE-like features; rgbaster 2.0, a JavaScript library rewritten in TypeScript for color identification in images; Kong 1.0, an API gateway with new service mesh capabilities; Flutter 1.0, for developing native mobile apps from a single codebase; fish 3.0, an interactive shell with new combiners and faster commands; and PhysX SDK 4.0, a physics engine with updates for industrial robotics and AI training. The summary reflects the vibrant contributions of the GitHub community, encouraging continued innovation and collaboration.