v0.5.0

New Features

• Add Copilot Chat support (copilot-chat, copilot-chat-send, copilot-chat-send-region, copilot-chat-reset) using the conversation/* LSP methods. (#446)
• Add Next Edit Suggestions (copilot-nes-mode) via textDocument/copilotInlineEdit. NES predicts edits anywhere in the file based on recent editing patterns. (#447)
• Add copilot-chat-stop command to cancel in-flight streaming.
• Show mode-line streaming status indicator for chat.
• Display follow-up suggestions after chat responses.
• Show errors inline in the chat buffer.
• Use markdown-mode GFM font-lock in the chat buffer when available.
• Add Chat, NES, Panel Complete, Clear Overlay, Select Completion Model, and Reinstall Server entries to the Copilot mode menu.
• Add GitHub issue templates for bug reports and feature requests.

Changes

• Add a default error handler to copilot--async-request so async failures (e.g. cancelled completions) are logged to *Messages* instead of being silently swallowed.
• Remove unused copilot-server-log-level defcustom (dead code — nothing read it).
• Improve copilot-log-max docstring to explain the *copilot events* buffer.
• Convert copilot--satisfy-predicates from macro to function for simplicity.

Bug Fixes

• Fix chat conversation/create sending allSkills as a string array instead of a boolean, which caused a schema validation error on copilot-language-server v1.436.0+. (#452)
• Fix copilot-complete being immediately cancelled when called from wrapper commands (lambdas, user-defined functions) whose name doesn't start with copilot-. (#453)
• Fix chat not displaying replies from newer server versions. (#459)
• Fix :json-false treated as truthy for external in window/showDocument handler.
• Normalize :json-false busy flag in didChangeStatus handler. (#457)
• Guard against :json-null in server responses.
• Clear copilot--completion-initiated-p flag in idle timer path to prevent stale state. (#454)
• Suppress copilot-max-char warning when copilot-max-char-warning-disable is non-nil.