DOC: changelog

CHANGELOG.md

@@ -3,7 +3,9 @@
 ## 2111.0 (Thursday 11th November 2021)
 
  - The `rpath` is explicitly set on executables and shared libraries,
-   and the `install_name` set on shared libraries under macOS.
+   and the `install_name` set on shared libraries under macOS. This
+   is to support local development, and execution of commands from
+   their `$FSLDIR/src/` directory.
 
 
 ## 2109.1 (Wednesday 22nd September 2021)