# Is now possible to use G1GC with ES 6.4.x

**URL:** <https://discuss.elastic.co/t/is-now-possible-to-use-g1gc-with-es-6-4-x/150681>\
**Category:** Elasticsearch\
**Created:** [October 2, 2018, 10:51am UTC](https://discuss.elastic.co/t/is-now-possible-to-use-g1gc-with-es-6-4-x/150681 "2018-10-02T10:51:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![michaelsogos](https://avatars.discourse-cdn.com/v4/letter/m/9fc29f/32.png) [@michaelsogos](https://discuss.elastic.co/u/michaelsogos)\
**Post date:** [October 2, 2018, 10:51am UTC](https://discuss.elastic.co/t/is-now-possible-to-use-g1gc-with-es-6-4-x/150681/1 "2018-10-02T10:51:16Z")

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Dear,

Reading this [official page](https://www.elastic.co/guide/en/elasticsearch/guide/master/_don_8217_t_touch_these_settings.html) seems that G1GC is still avoided, at the same time seems that it is an old page from the far past.

Someone can confirm it is stable or not yet?

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**Author:** ![Bernt\_Rostad](https://avatars.discourse-cdn.com/v4/letter/b/3ab097/32.png) [@Bernt\_Rostad](https://discuss.elastic.co/u/Bernt_Rostad)\
**Post date:** [October 2, 2018, 10:58am UTC](https://discuss.elastic.co/t/is-now-possible-to-use-g1gc-with-es-6-4-x/150681/2 "2018-10-02T10:58:08Z")

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According to ticket [#33685](https://github.com/elastic/elasticsearch/pull/33685) , version 6.5.0 will be the first to officially support G1GC.

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**Author:** ![jasontedor](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jasontedor/32/66992_2.png) [@jasontedor](https://discuss.elastic.co/u/jasontedor)\
**Post date:** [October 16, 2018, 1:10am UTC](https://discuss.elastic.co/t/is-now-possible-to-use-g1gc-with-es-6-4-x/150681/3 "2018-10-16T01:10:24Z")

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I want to clarify something here.

We _intend_ that 6.5.0 will support G1GC when used on JDK 10.

However, nothing is guaranteed until we release and make official statements at that time.

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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:** [November 13, 2018, 1:23am UTC](https://discuss.elastic.co/t/is-now-possible-to-use-g1gc-with-es-6-4-x/150681/4 "2018-11-13T01:23:09Z")

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