# Meilisearch v1.4.0 — Release & Upgrade Intelligence
- **Product:** Meilisearch (https://meilisearch.com)
- **Version:** v1.4.0
- **Released:** Sep 25, 2023
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/meilisearch/updates/v1.4.0/

## Executive Summary (TL;DR)
Meilisearch v1.4.0. Source highlight: Meilisearch v1.4 improves the search result relevancy by introducing three new settings: `nonSeparatorTokens`, `separatorTokens` and `dictionary`.

## Breaking Changes & Deprecations
- 🔴 Usage breaking change following `filter` bug fix

## Improvements
- Improve CI test suite for manual trigger events (#3989) @curquiza

## Bug Fixes
- Fix synonyms display (#3946) @ManyTheFish
- Fix thai synonyms (#4033) @Kerollmops
- Fix synonyms with separators (#3994) @ManyTheFish
- Fix the swap index tasks (#4041) @irevoire
- Fix highlighting bug when searching for a phrase with cropping (#4028) @vivek-26
- Empty arrays/objects now return empty instead of null (#3997) @dogukanakkaya