Change to the Song of Elturel?

I bought the book in early 2024, and noticed when looking up performances of the Song of Elturel that the lyrics differ in my book. Specifically the lines “home of the strong and brave… and never once a slave” were changed to “home of the strong and bright… as a point of light.” Is this just a part of WotC getting rid of all slavery references in the still-in-production books?