# Release - Federate 21.0

**URL:** <https://community.siren.io/t/release-federate-21-0/317>\
**Category:** Announcements\
**Created:** [October 6, 2020, 1:14pm UTC](https://community.siren.io/t/release-federate-21-0/317 "2020-10-06T13:14:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Shaileja\_Pagare](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.siren.io/shaileja_pagare/32/173_2.png) [@Shaileja\_Pagare](https://community.siren.io/u/Shaileja_Pagare)\
**Post date:** [October 6, 2020, 1:14pm UTC](https://community.siren.io/t/release-federate-21-0/317/1 "2020-10-06T13:14:35Z")

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We’re excited to announce the new release - Siren Federate 21.0, introducing the index-based join, a faster join for critical investigations. It is compatible with Elasticsearch 7.9.1! [Read more](https://siren.io/siren-federate-21-release-a-faster-join-for-critical-investigations/)

It’s available to download [here](https://siren.io/downloads/?product=siren-federate)