OpenCode: What's New in December 2025

This release introduces support for LSP workspace/didChangeWatchedFiles notifications, enhancing integration capabilities. Several usability improvements were made to the desktop application, including better model selection, color auto-acceptance, and fixes for prompt input cleanup and incorrect toast messages for subagents.

This release introduces a new CLI subcommand for debugging agents in isolation and improves the desktop experience by updating the header layout and fixing rendering issues with large sessions. Users will also notice clearer prompt tagging in autocomplete and better placeholder text in the TUI.

This release introduces several new capabilities, including Gemini 3 Flash support and the ability to view detailed model usage statistics via the stats command. Several critical bugs were fixed, such as issues with MDNS registration and Codex model variants. Enhancements include configurable CORS hosts and improved stability for MCP tool calls.

This release focuses on backend and language server enhancements, introducing support for the Prisma language server and a new extract reasoning middleware. Additionally, a necessary CORS exception was added to improve compatibility for the Tauri desktop application.

This release focuses on minor internal and TUI adjustments. The main user-facing change is the relocation of the variant toggle control within the TUI command bar.

This release focuses on core infrastructure updates, primarily enabling CORS requests from *.opencode.ai subdomains. Additionally, the Nix configuration style has been updated to use more idiomatic syntax.

This release focuses on stability and resource management, primarily addressing a significant performance issue. Users will benefit from reduced CPU usage and memory leaks when filtering the model list to show no results.

This release focuses on improving the desktop experience by enabling project sharing across local servers and refining server management. Key fixes include correcting Cloudflare provider information and improving text selection behavior.

This release focuses on stability and visual consistency within the Core component, specifically addressing alignment and jitter issues in the split diff and markdown rendering. Additionally, the desktop application has been improved to prevent hanging when encountering dead servers.

This release focuses on stability by reverting the OpenTUI version to 0.1.63 to resolve a streaming jitter regression. It also includes documentation updates related to global Claude skills.

This release introduces significant new capabilities, including the ability to open projects in the web interface and support for global Claude skills. Key fixes address module resolution errors and prevent model list corruption in the TUI. The desktop application also gains system notifications and readline shortcuts.

This release introduces new language support with Nix syntax highlighting and the nixfmt formatter, alongside the addition of the supermemory plugin to the ecosystem. Several fixes address issues in message handling and WebFetch parameters, while the desktop application receives improved error reporting.

This release introduces significant enhancements to the desktop application, including project editing, image preview, and improved performance. Core updates include support for Bedrock configuration (region/tokens) and ensuring Claude streams are not truncated. Several bugs related to LSP installation and desktop scrolling synchronization have also been resolved.

This release introduces a new theme preview feature for easier visual selection. Key updates include synchronizing LSP updates and ensuring the current working directory is included in local MCP transport. Documentation has also been improved with new guides for plugins.

This release introduces new configuration options for controlling visibility during copy and export operations, alongside the addition of bash shell completions for command line users. Several bugs were addressed, including fixes for the stats command, TUI model searching, and terminal copy/paste functionality.

This release introduces several new capabilities, including path traversal protection for file operations, the shfmt formatter for shell scripts, and support for GitHub issues and workflow_dispatch events. Several bugs were resolved, notably fixing the `opencode web` baseURL error and ensuring the compact command cleans up revert state correctly. Users also gain more control over UI elements like the spinner animation and compaction settings.

This release introduces significant language support by adding Haskell LSP capabilities. Additionally, a critical bug affecting Windows users regarding the JDTLS configuration directory has been resolved.

This release focuses on improving the user experience by adding a clearer indicator for busy sessions and refining the layout by moving the session context display. Several minor bugs related to padding, keybind visibility, and project collapsing have also been resolved.

This release focuses on stability and correctness, addressing several key bugs. Users will experience smoother navigation during session reviews and more reliable behavior when overriding agent models or reconciling session changes.

This release focuses primarily on stability and correctness, fixing an issue with server connection failure display and correcting Content-Type headers for static assets. Additionally, tips are now disabled on the home route for a cleaner initial view.

This release introduces prompt stashing and adds support for the Cloudflare AI Gateway provider. Several key bugs have been resolved, including fixes for textarea resizing during pasting and incorrect visibility of favorites when filtering models. Users will also benefit from improved error handling and new helpful tips on the start screen.

This release introduces new filtering capabilities for skill tool descriptions and allows compaction hooks to fully replace prompts. Several usability improvements were made, including better styling for small screens and enhanced error messaging upon connection failure.

This release introduces a significant new capability with the addition of a native skill tool that includes a permission system. This update focuses on expanding core functionality and enhancing security controls for tool usage.

This release introduces several new capabilities, including an experimental LSP tool, Agent Skills support, and clipboard image pasting on Windows. Several important bug fixes address snapshot failures and incorrect port usage for websocket connections. Users will also notice visual polish on the desktop app and improved responsiveness for mobile devices.

This release introduces new capabilities, including support for schedule events and syntax highlighting for .ets files. Several critical bugs were addressed, such as issues with LSP server installation and SDK context usage. The tool also benefits from updated model temperature values and adoption of the official MCP SDK for better schema handling.

This release focuses on stability and usability improvements. Key updates include fixing a layout regression and resolving an incorrect state directory issue on macOS. Users will also benefit from clearer keybinding tooltips and the ability to select text.

This release focuses on stability and platform compatibility. Key updates include ensuring a primary agent is always enabled and fixing critical file loading errors. Additionally, the command-line interface now correctly builds on Windows systems.

This release addresses a critical regression issue related to configuration validation. Users should now find that the tool correctly processes configurations even when valid agents are present, resolving a previous error state.

This release introduces significant configuration flexibility by enabling users to set a default agent across all surfaces. Key updates also include new cursor themes like Catppuccin Frappé and several important bug fixes addressing session loading prioritization and system theme flickering.

This release introduces new API endpoints allowing users to delete and update message parts. Additionally, several stability issues have been addressed, including fixes for sidebar UX and event reconnection gaps.

This release focuses on stability and user experience improvements. Key updates include fixes for the sidebar UX and addressing issues related to event reconnection gaps.

This release focuses on stability and correctness, addressing issues related to file encoding logic and ensuring projects with missing metadata are correctly displayed. Additionally, initialization stability has been improved with the addition of retries.

This release focuses on improving session reliability and user experience, including fixing file encoding issues and enhancing prompt handling during session forking. Key improvements involve better LSP messaging accuracy and performance optimizations for auto-scrolling and session handling.

This release introduces markdown rendering for user messages in the TUI and adds oxlint server support for LSP. Desktop users benefit from improved error handling and separated shell prompt history, alongside UX refinements like smooth scrolling in the TUI autocomplete.

This release focuses on expanding language support by adding Rust generation capabilities and introducing inline editing for suggestions. Key improvements include faster suggestion generation and enhanced security awareness through a new Code Review mode.

This release introduces several new capabilities, including experimental support for the Ty language server and a new shell mode for the desktop application. Numerous bug fixes address issues with desktop layout, prompt history, and command execution validation. Users will also benefit from improved handling of GitHub Action hallucinations.

This release introduces a new quality-of-life feature allowing users to easily copy logs from server spawn failure dialogs. It also includes important stability improvements, such as fixing a server middleware bug related to empty query parameters, and enhances user control by allowing the terminal title to be disabled in the TUI.

This release focuses on improving the user experience by making error messages clearer and correcting an issue in the TUI where the wrong message was copied when reverting the last assistant reply.

This release introduces several new desktop client features, including optimistic prompt submission, session sharing, and new font support (Inter and IBM Plex Mono). Key fixes address issues with session list deletion behavior and configuration option adherence. Users can also now override the default output token limit via an environment variable.

This release introduces experimental support for the oxfmt formatter and enhances the desktop experience by allowing users to load more project sessions. Several critical bugs were resolved, including issues with prompt history navigation, multi-line input handling, and TUI autocomplete loading.

This release focuses primarily on stability and correctness, addressing several key bugs related to command execution, UI rendering in the TUI, and ensuring accurate LSP diagnostic reporting. Key fixes include preserving system prompt caching and correcting argument boundaries in the run command.

This release focuses on stability improvements for Windows users utilizing the Language Server Protocol (LSP). Key fixes include resolving issues with LSP path normalization and ensuring the LSP can successfully unzip on Windows systems.

This release focuses entirely on resolving critical issues specific to Windows environments. Key fixes include correcting the ElixirLS extension filename and ensuring proper path separation for LSP server lookups.

This release focuses on improving result relevance by prioritizing fuzzysort matches that begin with user input. Additionally, a critical bug causing connection timeouts due to improper server response handling has been resolved.

This release focuses on improving the reliability of interactions with Anthropic models. A key update includes a fix for message caching to ensure more consistent responses.

This release introduces support for the F# language server, significantly expanding language capabilities. Additionally, critical bugs affecting the desktop terminal and the share page functionality have been resolved.

This release introduces a significant new capability for desktop users by adding support for custom commands. This allows for greater customization and automation within the application environment.

This release introduces several new experimental hooks for advanced chat manipulation and a configuration option to control agent loop behavior upon user denial. Key fixes include resolving a race condition in file editing via new locking mechanisms and correcting issues with the --continue CLI flag and empty image file handling.

This release introduces several new language server and formatter integrations, including Gleam and TexLab, alongside ARM64 Docker support. Key fixes address visual issues in transparent themes and improve TUI behavior during session continuation. Enhancements also include better API resilience for Foundry and reduced context window usage from LSP diagnostics.

This release focuses on improving shell compatibility and stability, particularly on Windows, by enhancing Git Bash detection and fixing an issue with application exit behavior. Users will notice more reliable shell execution and correct handling of the exit key when the input prompt is not empty.

This release introduces an experimental hook for transforming chat messages and adds a visual indicator for ongoing chat sessions. Several important bug fixes address issues with LSP initialization on Windows, TUI readability in light mode, and command execution errors.

This release introduces enhanced keyboard customization by adding support for the super modifier (Command/Windows key) in keybinds. Additionally, a critical bug causing 100% CPU utilization when writing to stderr has been resolved.

This release focuses on enhancing user control and consistency by introducing custom keybinding support for input textareas and aligning default keyboard shortcuts. It also includes a fix for correctly managing GitHub reactions on issue comments.

This release focuses on enhancing version control integration by adding the ability to view Git log output directly. Users can now inspect commit hashes, messages, and detailed commit information within the tool.

This release introduces new integration capabilities with the addition of Cerebras headers and support for the models.dev family. Several critical bugs were resolved, including fixes for custom provider authentication and improved error messaging for failed tool executions. Users will also notice UX enhancements like improved interleaved thinking and the default setting of Gemini thinking level to high.

This release focuses primarily on documentation updates. Users will find clearer usage guidelines for the bash and grep tools.

This release introduces significant usability enhancements, most notably adding Windows support for shell mode execution and enabling agent creation via CLI arguments for better scripting integration. Several bugs were also addressed, including fixing improper error reporting from hooks and ensuring TUI exit commands function reliably.

This release introduces significant enhancements to project management, including custom colors, names, and icons, alongside the addition of Biome LSP support. Key fixes address issues with plugin caching and SVG file reading, improving overall stability and tooling integration.

This release introduces several new tracking and visibility features, including project update timestamps and a permission indicator in the TUI footer. A key fix addresses an issue where custom headers were incorrectly sent in MCP requests despite OAuth settings. The release also enhances telemetry data collection.

This release introduces significant language server support, adding LSP and formatting capabilities for Bash and Terraform, alongside OCaml support. Users will benefit from new customization options like three new themes, optional chat scrollbars, and dynamic terminal titles. Numerous bugs were fixed, including improvements to theme color contrast, autocomplete behavior, and session management.

This release introduces new configuration options for agent step limits and experimental OpenTelemetry tracing. Key fixes address initialization errors for GitHub Copilot Enterprise and SAP AI Core, along with improvements to session handling during repository commit changes. Users will also notice enhanced TUI readability and increased default scroll speed.

This release introduces support for the SAP AI Core provider and adds optional prompt input functionality for the GitHub Action. Several bugs were resolved, including issues with slash command persistence and model passing to tools, alongside improvements to bash tool messaging.

This release focuses on stability and configuration, specifically addressing an issue with setting up the Anthropic API key within the provider configuration. No new features or major improvements were introduced in this update.

This release focuses on stability and correctness. The primary update is a fix for a TypeError encountered during token cost calculations.

This release introduces new configuration options for tool availability via the experimental.primary_tools setting and adds a new TUI command to quickly navigate to the last user message. Several minor bugs were resolved, including issues with provider IDs, compaction types, DAX typos, and Windows pathing.

This release introduces several new usability features, including a basic session list command and a toggle to hide usernames in the TUI. Several important bugs were fixed, addressing authentication failures, incorrect plugin hook types, and issues with unignoring files. Performance and visual tweaks were also applied to themes and timeouts.

This release focuses primarily on stability and usability fixes, addressing issues with command-line argument parsing and theme rendering. Users will benefit from more reliable CLI execution and cleaner reasoning output when using OpenRouter.

This release introduces new customization options, including an overridable review slash command and the ability to toggle tool details visibility. Several critical bugs were addressed, focusing on authentication logic, configuration adherence (like npm registry settings), and stability when interacting with specific AI models like Gemini and GPT 4o mini.