You can narrow news to a specific version by calling `view-emacs-news'
with a prefix argument or by typing C-u C-h C-n.
+\f
+* Installation Changes in Emacs 23.4
+
+** The MS-Windows build prefers libpng version 1.14 or later.
+Versions of libpng before 1.14 had security issues, so we now
+recommend to use version 1.14 or later. Precompiled Windows binaries
+require version 1.14 or later. See README.W32 and nt/INSTALL for
+details and pointers to URLs where the latest libpng can be
+downloaded.
+
+\f
+* Changes in Emacs 23.4 on non-free operating systems
+
+** The MS-Windows port can now use more than 500MB of heap.
+Depending on the available virtual memory, Emacs on Windows can now
+have up to 2GB of heap space. This allows, e.g., to visit several
+large (> 256MB) files in the same session.
+
\f
* Installation Changes in Emacs 23.3
\f
* Changes in Emacs 23.3 on non-free operating systems
-** The nextstep port can have different modifiers for the left and right
+** The NeXTstep port can have different modifiers for the left and right
alt/option key by customizing the value for ns-right-alternate-modifier.
\f
*** Emacs now supports multi-page TIFF images.
-** New NeXTSTEP-based port.
+** New NeXTstep-based port.
This provides support for GNUstep (via the GNUstep libraries) and Mac
OS X (via the Cocoa libraries).
nextstep/README and nextstep/INSTALL in the Emacs source directory.
** Mac OS X is no longer supported via Carbon.
-Use the NeXTSTEP port, described above.
+Use the NeXTstep port, described above.
** The new configuration option "--with-dbus" enables D-Bus language
bindings for Emacs.
*** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them.
See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'.
-*** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'.
+*** `icomplete-prospects-height' now supersedes `icomplete-prospects-length'.
*** Info displays breadcrumbs in the header of the page.
See Info-breadcrumbs-depth to control it.