Among a number of bug fixes, scaling, and performance improvements, there are a few notable features and considerations.
**Migrations**
With this release, we introduce a number of changes that require migrations. To run migrations, you can update to the latest version of R2R with `r2r update`, upon serving R2R (e.g. `r2r serve --docker`) the schema will be checked, and you will be prompted to upgrade your database with `r2r db upgrade.`
**Advanced GraphRAG**
We're rolling out [prompt tuning](https://r2r-docs.sciphi.ai/cookbooks/advanced-graphrag#prompt-tuning) and [contextual embeddings](https://r2r-docs.sciphi.ai/cookbooks/advanced-graphrag#contextual-chunk-enrichment), which both offer significant improvements.