**Fast mode** for Anthropic and OpenAI models lets you trade cost for speed in the agent panel.
Rust CLI version 0.140.0-alpha.5 released.
chore(vscode): release v3.89.1 (#11451)
**Claude Code** `/model` picker now correctly displays **Opus** as the default on Max/Premium/Enterprise plans instead of hiding it behind a generic Default label.
Embedded **LanceDB** replaces Qdrant as the default semantic search backend, eliminating the need for a separate server.
**GitHub Copilot CLI** adds server-side filtering for GitHub issues/PRs via `/`, session-scoped extensions, and corporate proxy authentication via Kerberos/Negotiate (SPNEGO).