So this Q doesn't get lost in the higher-traffic channel there. I can confirm that install-latest gives me v0.4.9 too while https://github.com/seancorfield/deps-new/releases shows three releases since then.

I'm guessing version numbers are maybe not compared numerically? if they are sorted that way at all I don't know

(sort ["0.4.1" "0.4.9" "0.4.12"])
=> ("0.4.1" "0.4.12" "0.4.9")

that's lexically sorted

https://github.com/owainlewis/semver

There's also: https://github.com/xsc/version-clj

user=> (v/version-sort ["0.4.1" "0.4.9" "0.4.12"])
("0.4.1" "0.4.9" "0.4.12")