Summary

• Bumps redis dependency from >=4.2.2,<5 to >=4.2.2,<8
• Bumps hiredis dependency from >=2.0.0,<3 to >=2.0.0,<4

Motivation

The current redis<5 pin prevents downstream servers that depend on Feast from using redis-py 5+. Since redis-py is now at version 7.4.0, this is an increasingly painful constraint for users who need newer redis-py features or have other dependencies requiring redis-py 5+.

Compatibility Analysis

Feast uses only one file that imports redis (sdk/python/feast/infra/online_stores/redis.py). The APIs used are all stable across v4 through v7:

• Redis, RedisCluster, Sentinel client classes
• redis.asyncio module (Redis, RedisCluster, Sentinel)
• pipeline(), hset(), hmget(), hgetall(), scan_iter(), delete(), hdel(), expire()

All imports and method signatures are unchanged from redis-py 4.x to 7.x.

The hiredis cap is bumped from <3 to <4 because redis-py 5+ requires hiredis>=3.0 when the hiredis extra is used.

Test plan

• Verified all redis imports work with redis-py 7.4.0
• Verified all redis API methods used by Feast exist and are compatible
• All 19 redis unit tests pass with redis-py 7.4.0 (1 test errored due to unrelated missing dask dep in test fixture)