Performance
Datagrunt 4.0: A Rust-Accelerated CSV Core and the AI Feature Removal
Datagrunt 4.0 ships a bundled Rust engine for CSV delimiter and dialect inference (~5x faster), removes the deprecated AI/LLM features, and adds document-level batch PDF processing. Plus the same-day 4.0.1 packaging and security patch.
June 13, 2026
Datagrunt Updates: Context Managers, Class-Level Normalization, and Hardening (v3.2.0 - v3.4.1)
A consolidated review of Datagrunt releases from 3.2.0 through 3.4.1, highlighting class-level column normalization, context manager support, AI feature deprecation, and key performance and correctness fixes.
June 13, 2026
Datagrunt 3.1.40: A Hardening and Performance Release
Datagrunt 3.1.40 lands 33 merged pull requests focused on correctness, robustness, security, and speed. Highlights include eliminating silent CSV data loss, fail-fast input validation, ~500x faster repeated DuckDB queries, bounded-memory sampling, thread-safe PDF execution, a contained image-dedupe security fix, and a test suite that grew from 281 to 408 tests.
June 11, 2026
Optimizing PDFium: Resolving Multiprocessing Overhead and Layout Parser Recursion
How we optimized datagrunt's new default PDF engine (PDFium) to run 200x faster on single-page documents and fixed a critical infinite recursion bug in layout-aware column splitting.
June 7, 2026