Update changelog

Author: yuhan0

CHANGELOG.md

@@ -2,8 +2,12 @@
 
 ## master (unreleased)
 
-### Bugs fixed
+### New features
+* [#556](https://github.com/clojure-emacs/clojure-mode/issues/556): `clojure-rename-ns-alias` picks up existing aliases for minibuffer completion.
 
+### Bugs fixed
+* [#556](https://github.com/clojure-emacs/clojure-mode/issues/556): Fix renaming of ns aliases containing regex characters.
+* [#555](https://github.com/clojure-emacs/clojure-mode/issues/555): Fix ns detection for ns forms with complex metadata.
 * [#520](https://github.com/clojure-emacs/clojure-mode/issues/508): Fix allow `clojure-align-cond-forms` to recognize qualified forms.
 * Enhance add arity refactoring to support a defn inside a reader conditional.
 * [#404](https://github.com/clojure-emacs/clojure-mode/issues/404)/[#528]((https://github.com/clojure-emacs/clojure-mode/issues/528)) Fix syntax highlighting for multiple consecutive comment reader macros (`#_#_`)