What is Valkey?
Valkey is a Linux Foundation-backed open-source fork of Redis
Created in April 2024 after Redis changed to a less permissive license
Backed by AWS, Google, Snap, Ericsson, Oracle, and others
Forked from Redis 7.2.4
Latest version: Valkey 9.0 (released 2025) with improved scalability
While it aims to be Redis-compatible, there are implementation differences
Answer
Unfortunately, Valkey has not been fully tested with LangSmith Deployments at this time and should not be used for self-hosted environments.