0.2.4

Release Date: 2026-01-22

Agentic search pipeline, multi-language LSP integration, cloud retrieval, and comprehensive deprecation of legacy naming

New Features

Agentic Search Pipeline

• agentic_search tool — New primary codebase search tool replacing fast_search
• agentic_retrieval tool — Two-stage semantic + agentic code retrieval (requires RELACE_CLOUD_TOOLS=true and MCP_SEARCH_MODE=indexed|both)
• MCP_SEARCH_MODE — Control search mode: agentic (default), indexed, or both

Multi-Language LSP Integration

• Extended LSP toolset with find_symbol, find_references, get_hover for Python, TypeScript, Go, and Rust
• Session-based LSP lifecycle with fingerprint-based caching and improved state isolation
• SEARCH_LSP_TOOLS — Gatekeeper for LSP tool enablement (true, false, auto)

Configuration Enhancements

• SEARCH_TOP_P — Optional sampling control for providers requiring explicit top_p (e.g., Mistral)
• Third-party provider support — Relaxed API key requirements; auto-derive keys from {PROVIDER}_API_KEY

Benchmark

• Loc-Bench CLI tools: curate, report, checkpoint resume, timeout, and fail-fast support

Breaking Changes

• fast_search deprecated — Use agentic_search instead. Returns _deprecated field in response. Will be removed in v0.2.5.
• Environment variable deprecation finalized — All RELACE_* prefixed aliases emit warnings and will be removed in v0.2.5

Improvements

• Dual-channel parallel search with fine-grained benchmark metrics
• Tool descriptions streamlined for consistency across all MCP tools
• Security hardening for LSP path validation and symlink traversal

Fixed

• Cloud hash parameter and gitignore unignore semantics
• Branch handling and hash usage in cloud search logic
• Mistral API compatibility for assistant messages

Documentation

• Renamed fast_search to agentic_search in all docs
• Added agentic_retrieval usage guide
• README benchmark section added

Stats

144 files changed, 10811 insertions(+), 2626 deletions(-)

Full Changelog: v0.2.3...v0.2.4