February 2026 Summaries

Zed has introduced split diffs as the new default feature starting from version 0.224, allowing users to view project or branch diffs with the base text on the left and the working copy on the right, both of which scroll in sync. This enhancement addresses a top user request following the Git integration release in March 2025. The split diff view in Zed is designed to be fast, minimal, and intuitive, integrating seamlessly with the editor's multibuffer system, which spans multiple files and allows cursor movement across file boundaries. The system employs a block map to ensure vertical alignment of corresponding lines by inserting non-text spacers, maintaining performance even with large changesets. The development process involved tackling challenges unique to Zed's architecture, resulting in performance optimizations that extend beyond split diffs, including improvements to project search and reduced main thread hangs on macOS. Users can experience the new split diffs in the latest stable release and provide feedback through GitHub or Discord, with the option to revert to unified diffs via settings if desired.

Theme Builder is a visual editor designed for creating and customizing themes for the Zed code editor, eliminating the need for manual JSON file editing. It allows users to instantly see changes in a live preview as they adjust color tokens across 16 UI categories, 10 syntax color categories, and multiplayer collaboration elements. The system addresses the complexity of modern editor theming by offering features such as an interactive inspector to identify which tokens control specific elements, color linking to maintain consistency across related elements, and pixel-perfect syntax highlighting via Tree-sitter. Theme Builder also supports importing existing themes and exporting creations as theme overrides or extensions, offering a seamless and intuitive way to craft personalized editor aesthetics.

"Let's Git Together" was an eight-week initiative by Zed, running from November to December 2025, aimed at enhancing Git integration through community collaboration. This unique contributor program invited users to participate in feature development and issue resolution, resulting in significant improvements, including 66 community contributions, five major features, 28 bug fixes, and 33 additional enhancements. Prominent features included a File History View and a Tree View for the Git Panel, which improved usability and functionality. The program's success was attributed to a curated project board, weekly pairing sessions, biweekly demo days, and rapid feedback, which collectively fostered a productive and engaging environment for contributors. The initiative demonstrated the power of community-driven development and has inspired plans for future focused community sprints in 2026 to continue refining Zed's capabilities.

Zed has expanded its functionality to support multiple edit prediction providers, allowing users to choose between Zeta, Mercury Coder, Sweep, Ollama, Codestral, and GitHub Copilot's Next Edit Suggestions. This enhancement enables users to select a prediction model that best aligns with their coding style, aiming to improve coding efficiency by anticipating changes, suggesting syntax completion, and optimizing code editing. Zed's edit prediction system now features a pluggable provider architecture, simplifying the integration of new prediction models by focusing on model-specific components like API calls and response handling. Zeta remains the default model, but users can experiment with other options like Mercury Coder, which uses a diffusion architecture for parallel output refinement, or Sweep, which offers rapid suggestions using a custom diff format. Ollama allows for local execution of open-weight models, ensuring code privacy. Users can configure their preferred provider in the Settings Editor, and Zed encourages experimentation to find the best fit based on language, project size, and editing style.