clj-refactor.el 4.0

Hot on the heels of CIDER 2.0, clj-refactor.el 4.0 is out! It’s the first major release of the project in almost five years, and this time around the version bump is not just ceremonial - 4.0 is the biggest batch of user-facing improvements clj-refactor has seen in ages, plus a healthy dose of long-overdue spring cleaning. Unfinished business When I announced clj-refactor.el 3.0 back in 2021, I opened with a confession - we had failed to deliver the main objective of that release, namely restoring the dependency hot-loading that JDK 9’s module system broke. Well, better late than never: cljr-hotload-dependency is back in 4.0, reimplemented on top of clojure.tools.deps, and it even accepts deps.edn-style coordinate maps alongside the classic Leiningen vectors.1 I’ll also be honest about the bigger picture, as I was back then: clj-refactor spent most of the intervening years in maintenance mode, while clojure-lsp became the default refactoring engine for much of the community. That…