# Meilisearch v1.23.0 — Release & Upgrade Intelligence
- **Product:** Meilisearch (https://meilisearch.com)
- **Version:** v1.23.0
- **Released:** Oct 13, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/meilisearch/updates/v1.23.0/

## Executive Summary (TL;DR)
Meilisearch v1.23.0. Source highlight: This release introduces a new compact route on the index routes, which appends a new compaction task to the queue. Meilisearch uses an LMDB environment by index, and indexes start to fragment after some time. We have noticed that the indexes generally have 30% fragmentation. By defragmenting the env

## New Features
- Introduce a task to compact an index
- Add request uid to search routes

## Improvements
- Parallelize bulk facets & word prefix fid/position docids
- Change Java version in SDK CI
- Minor improvement in OpenAPI CI

## Bug Fixes
- Fix ranking score bug when sort is present
- Synonym performance fix
- Update README.md to fix newsletter link
- Try to fix GH license detection again