Who owns the copyrights? According to the article, since 7.0.0, 24.8% of commits are from Tencent, 19.5% from Redis, 6.7% from Alibaba, 5.2% from Huawei, 5.2% from Amazon.
I wonder if there is a qualitative analysis of the commits. Aka, it changed a line of comment vs it introduced a new feature or refactored and increased long term viability, etc.
Some projects require signing copyright transfer before making commits (legal document claiming that you are a) copyright holder and b) you transfer those rights to them ie CLA [0]) so single entity holds whole copyrights.
They usually have a GHA that checks it when proposing PRs.
It doesn't look like redis has any of this.
So they run RedisLabs purely on trademark + admin rights on GH on redis/redis.
If that's the case then they also cannot legally change licence of code that's already there because they're not sole copyright holders of that code.
ps. as a side note that's why ie. SQLite doesn't allow external contributions at all, even though their code is Public Domain – because they can legally claim full copyright/authorship.
