Version 5.1.0 of the library breaks compatibility with 4.0 of the server

[tlhunter]

Description

I noticed that the v5.1.0 release of the Redis library break compatibility with the 4.0 release of the server:

Redis Client Error [SimpleError: ERR Syntax error, try CLIENT (LIST | KILL | GETNAME | SETNAME | PAUSE | REPLY)]

I have not looked into exactly which version of the Redis server is last compatible. E.g. I don't know if Redis server 5.0 is compatible with 5.1.0 of the library.

While Redis v4.0 is pretty old it would likely be considered a major change to stop supporting it.

Node.js Version

v22.13.1

Redis Server Version

4.0.14

Node Redis Version

5.1.0

Platform

macOS

Logs

[nkaradzhov]

Thanks for the catch. We test 3 versions back, hence why we didnt catch this. I will look into it.

[nkaradzhov]

CLIENT SETINFO <LIB-NAME|LIB-VER> is unsupported below redis server v7.2.0

redis server v7, v6, v5 all return the same error: ERR Unknown subcommand or wrong number of arguments for 'SETINFO'. Try CLIENT HELP which we ignore as per the recommendation.

redis server v4 returns different error: ERR Syntax error, try CLIENT (LIST | KILL | GETNAME | SETNAME | PAUSE | REPLY) which we didnt expect (since we didnt test with v4) and are actually throwing instead of ignoring.

Will provide a fix soon, node-redis@5.1.1 should have it.

[submarines-and]

For redis 7.2 (GCP) it also fails to connect with error below after this update. Not sure if related.

[SimpleError: ERR unknown command 'CLIENT', with args beginning with: 'SETINFO' 'LIB-VER' '5.0.1' ]