From: Vibhav Pant Date: Thu, 9 Mar 2017 14:32:03 +0000 (+0530) Subject: etc/NEWS: Add entry for new `switch' bytecode. X-Git-Tag: emacs-26.0.90~606 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=550c23d326da983af082ad8f0227ace16c652021;p=emacs.git etc/NEWS: Add entry for new `switch' bytecode. --- diff --git a/etc/NEWS b/etc/NEWS index 32137a79da6..f0df0a70caa 100644 --- a/etc/NEWS +++ b/etc/NEWS @@ -741,6 +741,12 @@ processes on exit. * Incompatible Lisp Changes in Emacs 26.1 ++++ +** Certain cond/pcase/cl-case forms are now compiled using a faster jump +table implementation. This uses a new bytecode op `switch', which isn't +compatible with previous Emacs versions. This functionality can be disabled +by setting `byte-compile-cond-use-jump-table' to nil. + +++ ** Resizing a frame no longer runs 'window-configuration-change-hook'. Put your function on 'window-size-change-functions' instead.