How so? Does Hiroshi handle proposals at github better? Because I have not seen evidence for that. Ruby feels much more locked down nowadays. It has always had a Japanese driven programming language, of course, but now it feels much more closely aligned to first tier japanese and second tier non-japanese (unless they worked at/for shopify or github). And I am pretty certain to not be the only one who has had the same impression (again, excluding e. g. shopify or microsoft).
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There are a lot of bug fixes and changes happening. Even a very useful feature (cooldowns). See https://blog.rubygems.org
As a user, I have no complaints. Quite the opposite; I've been impressed by how well he is doing with it.