Subject: Re: bug#28625: [PROPOSED] Speed up (format "%s" STRING) and the like

From: Eli Zaretskii <[email-masked]>
Date: Sat, 07 Oct 2017 12:48:51 +0300

> From: Philipp Stephani <[email-masked]>
> Date: Sat, 07 Oct 2017 09:12:16 +0000
> Cc: [email-masked]
> 
> Shouldn't this at least be documented in the "Incompatible Lisp changes" section of NEWS? 

If it's incompatible, sure.  Is it?  Can you show the effect of the
incompatibility?