# How reliable is unified highlighter in 5.6 ES?

**URL:** <https://discuss.elastic.co/t/how-reliable-is-unified-highlighter-in-5-6-es/155767>\
**Category:** Elasticsearch\
**Created:** [November 7, 2018, 5:33pm UTC](https://discuss.elastic.co/t/how-reliable-is-unified-highlighter-in-5-6-es/155767 "2018-11-07T17:33:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![7ca884569f2642e2c488](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/7ca884569f2642e2c488/32/75102_2.png) [@7ca884569f2642e2c488](https://discuss.elastic.co/u/7ca884569f2642e2c488)\
**Post date:** [November 7, 2018, 5:33pm UTC](https://discuss.elastic.co/t/how-reliable-is-unified-highlighter-in-5-6-es/155767/1 "2018-11-07T17:33:24Z")

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Hello, we are using FVH highlighter now but it has one problem -- it doesn't work with different words order. It is the same issue as in this [issue](https://github.com/elastic/elasticsearch/issues/12648). This issue was closed with a link to this [PR](https://github.com/elastic/elasticsearch/pull/21621). So I changed our highlighter from Fvh to Unified and it works beautifully now (fast and correct). But documentation for ES 5 is saying that this feature is experimental. We can't upgrade to ES 6 where this highlighter is not marked as experimental. So question is how reliable is Unified highlighter? Is it too dangerous to use it in production?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 5, 2018, 5:33pm UTC](https://discuss.elastic.co/t/how-reliable-is-unified-highlighter-in-5-6-es/155767/2 "2018-12-05T17:33:28Z")

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