Zed now includes an integrated REPL (Read Eval Print Loop) that allows users to run and visualize code directly within the editor, enhancing the development experience by merging the interactive elements of Jupyter notebooks with the coding flow. Users can execute Python and other languages, such as TypeScript via Deno and R via Ark or xeus-r, either line by line, block by block, or by specific selections, transforming Markdown documents into interactive notebooks without needing separate notebook software. The REPL detects installed kernels and allows inline execution and iteration, making it easier for developers to experiment with code snippets and data visualizations directly in their scripts or Markdown documents. This feature is now available in the latest Zed release, offering a preview of enhanced coding and analysis capabilities.