> ## 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.

# 0.15.21

## Stability Improvements 💪

* Fixed an issue where "Top N" queries would return inconsistent results
* Various fixes to correctness issues in JOINs

## Performance Improvements 🚀

* Optimized fast field execution methods and query cost estimations, which has significantly improved certain types of JOINs
* Introduced a new [`paradedb.aggregate`](/documentation/aggregates/tantivy) function, intended as an escape hatch for fast aggregate
  execution over single tables

## New Features 🎉

* Introduced a token filter for stop words

## New Contributors 👋

* [blaginin](https://github.com/blaginin) made their first contribution in [#2577](https://github.com/paradedb/paradedb/pull/2577)

## Full Changelog

The full changelog is available [on the GitHub Release](https://github.com/paradedb/paradedb/releases/tag/v0.15.21).