# Verision roll back

**URL:** <https://discuss.elastic.co/t/verision-roll-back/203301>\
**Category:** Elasticsearch\
**Created:** [October 12, 2019, 3:45am UTC](https://discuss.elastic.co/t/verision-roll-back/203301 "2019-10-12T03:45:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![cigarl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/cigarl/32/56745_2.png) [@cigarl](https://discuss.elastic.co/u/cigarl)\
**Post date:** [October 12, 2019, 3:45am UTC](https://discuss.elastic.co/t/verision-roll-back/203301/1 "2019-10-12T03:45:06Z")

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Updated Elasticsearch v6.1.3 to v6.7.1，data files can be identified automatically.Unfortunately,when i want to roll back, elasticsearch v6.1.3 can not identify the modified data files.It told me there was an illegalArgumentException: Unexpected fileld [mapping\_version].  
How to roll back the version correctly？Besides,I don't have more disk space to do SNAPSHOT.

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [October 12, 2019, 4:36am UTC](https://discuss.elastic.co/t/verision-roll-back/203301/2 "2019-10-12T04:36:50Z")

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Elasticsearch does not support rollbacks. The only way to roll back is to restore a snapshot taken before the upgrade.

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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 9, 2019, 4:37am UTC](https://discuss.elastic.co/t/verision-roll-back/203301/3 "2019-11-09T04:37:06Z")

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