# Minimum Redis Version

**URL:** https://meta.discourse.org/t/minimum-redis-version/181415
**Category:** Development
**Created:** [February 28, 2021, 11:51pm UTC](https://meta.discourse.org/t/minimum-redis-version/181415 "2021-02-28T23:51:38Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![Falco](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/falco/32/179432_2.png) [@Falco](https://meta.discourse.org/u/Falco)
#### Post date: [March 1, 2021, 12:15am UTC](https://meta.discourse.org/t/minimum-redis-version/181415/4 "2021-03-01T00:15:38Z")

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> [@andyv1](#):
>
> What else does Discourse use Redis for? Or where in the code should I look?

Quite a lot actually.

We use Redis backend in the [GitHub - discourse/message\_bus: A reliable and robust messaging bus for Ruby and Rack · GitHub](https://github.com/discourse/message_bus) gem for live page updates, for the Rails cache, for the distributed rate limit, for our semaphore system, etc.

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