I contributed a few LOC to Redis in the past (before "Redis Labs" had taken over), but never signed a CLA or assigned Copyright (that's not even possible in my country of origin). I realize that under the permissive license that I published my contributions under, they can very well do what they are doing. That they are doing it, is disappointing nonetheless. I guess there are more people like me out there, with vastly more important contributions, who feel about the same. I, for one, will not contribute to the project under this new license any more.
What a shame.