GitHub Copilot VS Code Updates: Agents, Chat, UI, and Accessibility

Developers can now maintain multiple related conversations within a single session, enabling easier comparison of ideas, parallel work, and exploration of different approaches. This feature, including multi-chat support for Claude, allows each chat to have its own history and title, with options to fork into peer chats, close, reopen, and delete chats, all navigable via keyboard shortcuts.

Chat now provides more information and control, with general availability for Copilot vision allowing image and PDF uploads. Users can check AI credit usage, employ BYOK models in the Agents window, and run terminal commands directly from chat using the '!' prefix.

Updates to the editor, terminal, and browser improve navigation and customization. Features include a modern UI preview (experimental), direct file opening from Git diffs in the terminal, configurable browser tab placement, OS-level shortcuts for background VS Code commands, prompt file migration to skills, and toolbar-based editor type switching.

An experimental feature allows users to view and edit Markdown files directly within the Agents window. This capability enables adding comments that agents can act upon, providing a more integrated editing experience.

Accessibility is enhanced with built-in dictation, which can be enabled via the `dictation.enabled` setting for chat, the editor, and the integrated terminal. Optional transcript cleanup using LLMs is also available, along with improved screen reader control for the integrated terminal to manage output flow.

The public preview Agents window now features a redesigned layout, faster code review workflows, and enhanced management for multiple chat sessions. Users can review code alongside chat with a new editor panel, open files and diffs next to conversations, and utilize a shared tab bar for organization. Worktree support for Copilot sessions, quick chats without a workspace, and the ability to group/reorder sessions are also included.