I'm a very happy Julia user, but what's the point of this blog post? It seems to just be regurgitating a bunch of points from the official 1.9 announcement[1]. There was also significant discussion of the 1.9 announcement on hacker news only a couple of days ago, so posting it here for discussion seems silly.
[1] https://julialang.org/blog/2023/04/julia-1.9-highlights/