Comment by reconditerose

It's not just a fork, there have been two releases on Valkey that improved performance and memory efficiency. There is a lie that Redis likes to spread that only their own employees were working on the core engine at the time of the fork, but most of the engineers on Valkey came directly from having worked on Redis OSS. A recent example is we modernized the hash table a bit: https://valkey.io/blog/new-hash-table/.