Changelog

All notable changes to jsonl-algebra are documented here.

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v1.04 — 2026-01-31

Documentation & release maintenance.

• Trimmed MkDocs nav to reference only pages that exist on disk
• Added this changelog
• Fixed stale bump2version config (was pinned to v0.9.0)

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v1.03 — 2025-12-14

Window functions, join types, and shell enhancements.

• Added window functions: row_number, rank, dense_rank, lag, lead, first_value, last_value, ntile, percent_rank, cume_dist
• Extended join types (left, right, outer)
• Shell UX improvements and bug fixes

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v1.02 — 2025-11-14

MCP server fixes and developer documentation.

• Fixed critical MCP server bugs
• Added developer documentation and integration guides
• Fixed build configuration (removed non-existent scripts package)
• PyPI release

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v1.01 — 2025-08-18

Fluid API and initial PyPI release.

• Added fluid API for chaining relational operations
• Chained group-by and aggregation support
• Initial MkDocs documentation site with Material theme
• First PyPI release

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v1.0 — 2025-10-27

Interactive shell and comprehensive test suite.

• Added ja-shell: interactive filesystem navigator for JSON/JSONL
• Virtual filesystem abstraction (ja/vfs.py) — treat JSONL files as directories of records
• MCP (Model Context Protocol) server integration
• Comprehensive test suite with TDD approach
• MkDocs documentation deployed to GitHub Pages

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v0.9.0 — 2025-08-18

Initial release.

• Core relational algebra operations: select, project, join, union, difference, intersection, distinct, sort_by, rename, product
• Expression evaluation engine with dot notation and JMESPath fallback
• Group-by with aggregation (groupby_agg)
• Pipeline composition with | operator
• CLI tool (ja) and streaming-compatible design
• CSV import/export, JSON Schema inference