# Elastic fork/commit in github, how to apply? **URL:** \ **Category:** Elasticsearch\ **Tags:** ilm-index-lifecycle-management, rollups\ **Created:** [February 15, 2022, 9:26am UTC](https://discuss.elastic.co/t/elastic-fork-commit-in-github-how-to-apply/297217 "2022-02-15T09:26:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![b.kaliuzhnyi](https://avatars.discourse-cdn.com/v4/letter/b/58f4c7/32.png) [@b.kaliuzhnyi](https://discuss.elastic.co/u/b.kaliuzhnyi)\ **Post date:** [February 15, 2022, 9:26am UTC](https://discuss.elastic.co/t/elastic-fork-commit-in-github-how-to-apply/297217/1 "2022-02-15T09:26:07Z")
Hello! I need a function to add a rollup to ILM. Found something on github: [https://github.com/elastic/elasticsearch/issues/48003](https://github.com/elastic/elasticsearch/issues/48003) . I've never worked with git, I don't know where to start. Is there an instruction to install Elasticsearch from the github repository([Master](https://github.com/elastic/elasticsearch) or [Fork](https://github.com/talevy/elasticsearch) )? Can I add a commit([link: Commit](https://github.com/elastic/elasticsearch/commit/5811deb580ed1d72e1b412d3d29418deeaac9317)) to an existing installed cluster (I installed it from a deb package), not connected to git? Or is it necessary to install a full fork that has this commit? Is it possible to apply the commit(5811deb580ed1d72e1b412d3d29418deeaac9317) to the main branch(elastic/Elasticsearch)? How do I view the fork version? And will I be able to update the cluster after installation (for example, from version 7.16 to 7.17)? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 15, 2022, 9:27am UTC](https://discuss.elastic.co/t/elastic-fork-commit-in-github-how-to-apply/297217/2 "2022-03-15T09:27:03Z")
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