# Upgrade notes

These pages summarize **notable API and behavior changes** by release. They are curated from [CHANGELOG](https://github.com/oguzhankir/omnichunk/blob/main/CHANGELOG.md); for exhaustive detail, read the changelog for each version.

| Version | Notes |
|--------|--------|
| [v0.8](v0.8.md) | Hierarchical chunking, `chunk_diff`, token budget optimizer |
| [v0.9](v0.9.md) | Multiformat loaders, dedup, `omnichunk eval` |
| [v0.10](v0.10.md) | Chunk store, streaming upsert, MCP serve, OpenTelemetry |
