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Changelog

Full release notes are on GitHub Releases.

kumo and kumo-derive are versioned independently — one may release without the other.

kumo

0.1.0 — 2026-04-13

  • Async-first crawl engine via Tokio (CrawlEngine::builder())
  • CSS, regex, XPath, JSONPath selectors
  • LLM extraction via Claude, OpenAI, Gemini, Ollama
  • Rate limiting, auto-throttle, retry with backoff
  • JsonlStore, JsonStore, CsvStore, StdoutStore
  • PostgreSQL, SQLite, MySQL stores
  • Item pipelines (DropDuplicates, FilterPipeline, RequireFields)
  • MemoryFrontier, FileFrontier, RedisFrontier
  • LinkExtractor with allow/deny filtering
  • HTTP response cache, Bloom filter dedup, robots.txt
  • Headless browser fetcher, stealth mode
  • Multi-spider engine
  • CrawlEngine::stream() — async item stream with backpressure
  • SitemapSpider
  • OpenTelemetry OTLP/gRPC export (otel feature)

kumo-derive

0.1.2 — 2026-04-25

  • Added default = "value" — fallback string for String fields
  • Added transform = "trim|lowercase|uppercase" — post-extraction transform

0.1.1 — 2026-04-25

  • Added crate metadata: authors, rust-version, documentation, exclude

0.1.0 — 2026-04-21

  • #[derive(Extract)] proc-macro for structs with named fields
  • css, attr, re, text field options
  • llm_fallback — CSS-first with LLM fallback
  • String fields default to "", Option<String> to None