We switched to Valkey two years ago. I haven't really looked back. I think both projects have done a lot of nice stuff since the split but it's not really impacting anything I use. The feature set was fine five years ago and I don't think we're using anything in Valkey that wouldn't work in Redis. There are probably a lot of projects that never switched over because they had no real need.

But most of the cloud providers now offer Valkey because of the license changes. Of course, cloud providers not offering Redis was the intention of the license change from the Redis point of view. So mission accomplished for Redis.

But the flip side of course is that if you want to deploy on standard infrastructure rather than self hosting Redis, Valkey is now the easy, low risk path that probably should be the default for most companies that target AWS, Azure, GCP, etc. Same with Elasticsearch vs. Opensearch and a few other products where the community forked because of license changes.

Mentioning Elasticsearch because I know people in both communities and I'm deeply familiar with the stack. A few years on, Opensearch has taken a lot of the momentum from Elasticsearch.