> ## 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.

# 0.15.9

## Deprecation Notice 🗄️

* As of this release, we have deprecated `pg_search` support for PostgreSQL 13. This decision was taken to enable our team to better serve our
  existing customers on other PostgreSQL major versions and in anticipation of the upcoming release of PostgreSQL 18 later this year and subsequent
  deprecation of PostgreSQL 13 later this year.
* On April 2, 2025, we will be deprecating `pg_analytics`, our extension for reading data from external data lakes into Postgres. The
  `pg_analytics`repository will be archived and will no longer be maintained. The extension will be removed from our Dockerfile and Helm
  charts. This decision was made because our work on Postgres analytics is being done in our primary extension,`pg_search`. Additionally,
  while `pg_analytics` was an exciting proof of concept, there now exist other tools in the ecosystem that can be used to read from object stores,
  and we would like to help consolidate usage around those tools rather than compete with them.

## Performance Improvements 🚀

* We have significantly improved write throughput by optimizing our segment merge policy. As a result, we removed the
  `paradedb.max_mergeable_segment_size` and `paradedb.segment_merge_scale_factor` settings, which are no longer necessary
  under this new merge policy. We instead introduced a new index `WITH` option, `layer_sizes`, which which defaults to 100KB,
  1MB, 100MB, but can be set by the user either at `CREATE INDEX` time or later by `ALTER INDEX`.
* We added support for concurrent merging, which further contributes to write throughput improvements. As a result, we removed
  the `paradedb.is_merging()` function. We instead introduced the `paradedb.merge_info()` and `paradedb.vacuum_info()` functions.

## Stability Improvements 💪

* Fixed an issue where certain queries could come out without a BM25 score
* Fixed an issue where `REFRESH MATERIALIZED VIEW CONCURRENTLY` failed with `pg_search` installed
* Fixed an issue where the `max_num_chars` parameter was not being respected while querying for highlights using the snippets function
* Fixed an issue where certain queries would have missing rows when querying data with `NULL` values in a string fast field

## Full Changelog

The full changelog is available [on the GitHub Release](https://github.com/paradedb/paradedb/releases/tag/v0.15.9).