> ## Documentation Index
> Fetch the complete documentation index at: https://paradedb-ankitml-legacy-docs-remove.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 0.18.3

## Stability Improvements 💪

* Fixed an issue where queries with nested `OR EXISTS` clauses or multiple `JOIN`s would throw an `rt_fetch used out-of-bounds` error

## Performance Improvements 🚀

* Pushed down `GROUP BY...ORDER BY...LIMIT` queries to the custom aggregate scan
* Improved write throughput by roughly 20% by swapping out our custom buffered writer for Rust's standard `BufWriter`

The full changelog is available [on the GitHub Release](https://github.com/paradedb/paradedb/releases/tag/v0.18.3).