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Branch-Aware Semantic Code Search

Branch-Aware Semantic Code Search

1
posts
2026

Qdrant now supports branch-aware semantic code search, enabling users to scope vector search queries to specific Git branches. This addresses the 'wrong-version problem' where a static vector index might return outdated information for a particular branch. The system indexes code by structural units (functions, classes, etc.) and uses Git commit information to track versions. Queries are filtered at runtime to ensure results are relevant to the user's current branch context. This capability is demonstrated with Qdrant's own codebase and is available for use with documentation or codebases.

2026

Branch-Aware Semantic Code Search with Qdrant - Qdrant

7/2/2026

Introduces the concept and implementation of branch-aware semantic code search. Details the 'wrong-version problem' in static vector indexes and proposes a solution by indexing code chunks with branch and commit metadata. Explains how to choose indexing units (structural declarations over fixed windows), track versions using stable identities (path + qualified symbol name), and keep the index synchronized with Git by replaying branch history. Discusses handling renames and moves, and the scaling implications of storage and filters. Demonstrates the system with Qdrant's Rust codebase and provides a tutorial link for implementation.