[FEATURE] Restrict Redis version to <7.4

[timlrx]

Is there an existing issue for this?

• I have searched the existing issues

Description

Heads up that Redis is also moving to a restrictive proprietary license starting from v7.4 onwards.

Suggest to restrict the version to <7.4

Is your feature request related to a problem/limitation?

Licensing issue which limits adoption and use of the software

Describe the solution you'd like

Given the dependencies to redis and the use of the subscription feature, my recommendation would be to just restrict the version for the time being.

Alternatives

Replace with an open-source Redis alternative that supports subscription.

Additional Context

No response

Related Issues/PRs

#276

[imda-benedictlee]

Hi @timlrx, thanks for flagging this to our attention. Let me bring to the attention of the team for further discussion on where to take this.

[imda-benedictlee]

@HanFai-IMDA for your attention.

[timlrx]

Thanks @imda-benedictlee and @HanFai-IMDA! Another possibility is to use https://github.com/valkey-io/valkey which is the linux foundation fork of redis that seems to be getting the most traction. It has more contributors and recent activity compared to redis - https://github.com/valkey-io/valkey/pulse/monthly vs https://github.com/redis/redis/pulse/monthly

[imda-benedictlee]

Hi @timlrx, thanks for the suggestion. I think at the moment, we could go with the first suggestion to fix the version below 7.4. Will bring up the alternatives to a discussion with the team.

[HanFai-IMDA]

Noted on the change in Redis license from v7.4 onwards. Currently AI Verify install Redis server version 6.2 in the docker compose and k8s scripts. We will lock it at version 6.x until the release of AI Verify 2.0. As for the Redis clients used by the python and nodejs modules, they are licensed under MIT and not affected by Redis change in licensing.