Update changelog with #2689

Author: magnars

CHANGELOG.md

@@ -22,6 +22,8 @@
 * `C-c , C-g` and `C-c C-t C-g` cancel the key chord instead of rerunning the last test. The respective command has been moved to `C-c , C-a`, `C-c , a`, `C-c C-t C-a` and `C-c C-t a`.
 * [#2643](https://github.com/clojure-emacs/cider/issues/2643): **(Breaking)** Stop using the `cider.tasks/nrepl-server` custom task for `cider-jack-in` with Boot.
 * [#2647](https://github.com/clojure-emacs/cider/issues/2647) `cider-repl-require-repl-utils` now loads cljs specific repl utils in cljs buffers.
+* [#2689](https://github.com/clojure-emacs/cider/issues/2689) `cider-load-buffer` now takes an optional `callback` that will override the default `cider-load-file-handler`.
+* [#2689](https://github.com/clojure-emacs/cider/issues/2689) `cider-load-file-handler` now takes an optional `done-handler` lambda that is run once load is complete.
 
 ### Bug fixes