"Kirill 'Big K' Katsnelson" <kkm(a)dtmx.com&gt; writes: The purpose of NEWS is to document user-visible changes. If I have code that does: (let ((binary-process-output t)) ...) and that code no longer works in 21.2, this should well be mentioned in NEWS, under "Lisp and internal changes". The entry might look like this: ** The variable `binary-process-output' is now obsolete. This variable was previously used to tell NT XEmacs to forgo the CRLF detection and accept its input as binary. The correct way to do it is now the same as under Unix, by binding `coding-system-for-read'. The NT-specific code that looked like this: (let ((binary-process-output t)) ... code ...) should be changed to this: (let ((coding-system-for-read 'binary)) ... code ...)