Rust v0.129.0-alpha.4 released with no published changelog.
**MCP servers** now display connected tool counts and flag zero-tool connections; `/channels` supports console API key auth with opt-in flag.
Extensions now load in **prompt mode** (`-p`), with user extensions enabled by default and project extensions controllable via `GITHUB_COPILOT_PROMPT_MODE_EXTENSIONS=true`.
No material changes documented.
Desktop app now respects `HTTP_PROXY` environment variables and handles missing stored values gracefully.
**Kilo Code** now detects and preserves UTF-32 (LE and BE) with BOM when reading and editing files.