\f
* Installation Changes in Emacs 24.4
-** Emacs can be compiled with POSIX ACL support.
+** Emacs can be compiled with ACL support.
This happens by default if a suitable support library is found at
build time, like libacl on GNU/Linux. To prevent this, use the
-configure option `--without-acl'.
+configure option `--disable-acl'.
+
+** Emacs can be compiled with file notification support.
+The configure option `--with-file-notification=LIB' enables file
+notification support in Emacs. This option's value should be `yes',
+`no', `gfile', `inotify' or `w32'. `yes' is a synonym for `w32' on
+MS-Windows, and for `gfile' otherwise. The default value is `yes'.
** The configure option --with-crt-dir has been removed.
-It is no longer needed, as the crt*.o files are no longer linked specially.
+It is no longer needed, as the crt*.o files are no longer linked
+specially.
+
+** Emacs for MS-Windows can now be built by running the configure script
+using the MSYS environment and MinGW development tools.
+This is from now on the preferred method of building Emacs on
+MS-Windows. The Windows-specific configure.bat and makefile.w32-in
+files are deprecated. See the file nt/INSTALL.MSYS for detailed
+instructions.
+
+Using the Posix configure script and Makefile's also means a change in
+the directory structure of the Emacs installation on Windows. It is
+now the same as on GNU and Unix systems. In particular, the auxiliary
+programs, such as cmdproxy.exe and hexl.exe, are in
+libexec/emacs/VERSION/i686-pc-mingw32 (where VERSION is the Emacs
+version), version-independent site-lisp is in share/emacs/site-lisp,
+version-specific Lisp files are in share/emacs/VERSION/lisp and in
+share/emacs/VERSION/site-lisp, Info docs are in share/info, and data
+files are in share/emacs/VERSION/etc. (Emacs knows about all these
+directories and will find the files in there automatically; there's no
+need to set any variables due to this change.)
\f
* Startup Changes in Emacs 24.4
\f
* Changes in Emacs 24.4
+** Key ? also describes prefix bindings like C-h.
+
+++
** `apropos-variable' is now `apropos-user-option'
`apropos-user-option' shows all user options while `apropos-variable'
** `initial-buffer-choice' can now specify a function to set up the
initial buffer.
+** `write-region-inhibit-fsync' now defaults to t in batch mode.
+
** ACL support has been added.
+++
*** Emacs preserves the ACL entries of files when backing up.
using the scroll bar (i.e. dragging the thumb down even when the end
of the buffer is visible).
+** In compiled Lisp files, the header no longer includes a timestamp.
+
+** Multi-monitor support has been added.
+
+*** New functions `display-monitor-attributes-list' and
+`frame-monitor-attributes' can be used to obtain information about
+each physical monitor on multi-monitor setups.
+
\f
* Editing Changes in Emacs 24.4
+** `split-window' is no longer a command, just a non-interactive function.
+As a command it was a special case of `split-window-below', and as such
+superfluous. After being reimplemented in Lisp, its interactive form
+was mistakenly retained.
+
** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
bound to <f11> and M-<f10>, respectively.
** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction.
Eg View mode, etc.
+** New command `kmacro-to-register' to store keyboard macros in registers.
+
+** Shell Script mode
+
+*** `sh-mode' now has the mode own `add-log-current-defun-function'.
+You can pick the name of the function and the variables with `C-x 4 a'.
+
\f
* Changes in Specialized Modes and Packages in Emacs 24.4
+** `eshell' now supports visual subcommands and options
+Eshell has been able to handle "visual" commands (interactive,
+non-line oriented commands such as top that require display
+capabilities not provided by eshell) by running them in an Emacs
+terminal emulator. See `eshell-visual-commands'.
+
+This feature has been extended to subcommands and options that make a
+usually line-oriented command a visual command. Typical examples are
+"git log" and "git <command> --help" which display their output in a
+pager by default. See `eshell-visual-subcommands' and
+`eshell-visual-options'.
+
+** `remember' can now store notes in separates files
+You can use the new function `remember-store-in-files' within the
+`remember-handler-functions' option.
+
+See `remember-data-directory' and `remember-directory-file-name-format'
+for new options related to this function.
+** `ido-decorations' has been slightly extended to give a bit more control.
+
+** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>.
+Affected files:
+~/.emacs.d/timelog replaces ~/.timelog
+~/.emacs.d/todo-do replaces ~/.todo-do
+~/.emacs.d/todo-done replaces ~/.todo-done
+~/.emacs.d/todo-top replaces ~/.todo-top
+~/.emacs.d/vip replaces ~/.vip
+~/.emacs.d/viper replaces ~/.viper
+~/.emacs.d/ido.last replaces ~/.ido.last
+~/.emacs.d/kkcrc replaces ~/.kkcrc
+~/.emacs.d/quickurls replaces ~/.quickurls
+~/.emacs.d/idlwave replaces ~/.idlwave
+~/.emacs.d/bdfcache.el replaces ~/.bdfcache.el
+~/.emacs.d/places replaces ~/.emacs-places
+~/.emacs.d/shadows replaces ~/.shadows
+~/.emacs.d/shadow_todo replaces ~/.shadow_todo
+~/.emacs.d/strokes replaces ~/.strokes
+~/.emacs.d/notes replaces ~/.notes
+~/.emacs.d/type-break replaces ~/.type-break
+
** Delphi mode is now called OPascal mode.
*** All delphi-* variables and functions have been renamed to opascal-*.
*** `delphi-newline-always-indents' is not supported any more
use `electric-indent-mode' instead.
*** `delphi-tab' is gone, replaced by `indent-for-tab-command'.
+** Eldoc Mode works properly in the minibuffer.
+
** jit-lock-debug-mode lets you use the debuggers on code run via jit-lock.
** completing-read-multiple's separator can now be a regexp.
*** Battery information via the BSD `apm' utility is now supported.
+** Calendar and Diary
+
++++
+*** New variable `diary-from-outlook-function', used by the command
+`diary-from-outlook'.
+
** cl-lib
*** New macro cl-tagbody.
*** Support for ISO 8601 dates.
+** Desktop
+
+*** `desktop-auto-save-timeout' defines the number of seconds between
+auto-saves of the desktop.
+
** Dired
*** New minor mode `dired-hide-details-mode' hides details.
If set to a number, this can be used to avoid accidentally paste large
amounts of data into the ERC input.
+---
+** New F90 mode option `f90-smart-end-names'.
+
** Icomplete is a bit more like IDO.
*** key bindings to navigate through and select the completions.
*** The icomplete-separator is customizable, and its default has changed.
It also has an optional frame argument, which can be used by Lisp
callers to fit the image to a frame other than the selected frame.
-** Isearch
+** Info
+
+*** New face `info-index-match' is used to highlight matches in index
+entries displayed by `Info-index-next', `Info-virtual-index' and
+`info-apropos'.
+
+** Hi-Lock
+
+*** New option `hi-lock-auto-select-face'. When non-nil, hi-lock commands
+will cycle through faces in `hi-lock-face-defaults' without prompting.
+
++++
+*** New global command `M-s h .' (`highlight-symbol-at-point')
+highlights the symbol found near point without prompting,
+using the next face automatically.
+
+** Search and Replace
+
+*** New global command `M-s .' (`isearch-forward-symbol-at-point')
+starts a symbol (identifier) incremental search forward with the
+symbol found near point added to the search string initially.
*** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
and adds it to the search string.
+*** `M-s i' in Isearch mode toggles the variable `isearch-invisible'
+between nil and the value of the option `search-invisible' (or `open'
+when it's nil).
+
+*** `query-replace' skips invisible text when `search-invisible' is nil,
+and opens overlays with hidden text when `search-invisible' is `open'.
+
++++
+*** By default, prefix arguments do not now terminate Isearch mode.
+Set `isearch-allow-prefix' to nil to restore old behavior.
+
+*** More Isearch commands accept prefix arguments, namely
+`isearch-printing-char', `isearch-quote-char', `isearch-yank-word',
+`isearch-yank-line'.
+
** MH-E has been updated to MH-E version 8.5.
See MH-E-NEWS for details.
name and arguments. Useful to trace the value of (current-buffer) or
(point) when the function is invoked.
-** New command `delete-duplicate-lines' has two types of operation:
-when its arg ADJACENT is non-nil (when called interactively with C-u C-u)
+** New command `delete-duplicate-lines' has new types of operation:
+When its arg ADJACENT is non-nil (when called interactively with C-u C-u)
it works like the utility `uniq'. Otherwise by default it deletes
duplicate lines everywhere in the region without regard to adjacency.
+When it arg KEEP-BLANKS is non-nil (when called interactively with C-u C-u C-u),
+duplicate blank lines are preserved.
** New `cycle-spacing' command allows cycling between having just one
space, no spaces, or reverting to the original spacing. Like
*** Handlers for `file-acl' and `set-file-acl' for remote machines
which support POSIX ACLs.
+** VHDL mode
+
+*** New options: `vhdl-actual-generic-name', `vhdl-beautify-options'.
+
+*** New commands: `vhdl-fix-statement-region', `vhdl-fix-statement-buffer'.
+
** Woman
*** The commands `woman-default-faces' and `woman-monochrome-faces'
are obsolete. Customize the `woman-* faces instead.
+** Eshell
+
+*** Added Eshell-TRAMP module
+External su and sudo commands are now the default; the internal,
+TRAMP-using variants can still be used by enabling the eshell-tramp
+module.
+
+** New term.el option `term-suppress-hard-newline'.
+
** Obsolete packages:
*** longlines.el is obsolete; use visual-line-mode instead.
++++
+*** sup-mouse.el.
+
*** terminal.el is obsolete; use term.el instead.
+*** xesam.el.
+
+++
*** yow.el is obsolete; use fortune.el or cookie1.el instead.
\f
* New Modes and Packages in Emacs 24.4
+** New `superword-mode' in subword.el
+`superword-mode' overrides the default word motion commands to treat
+symbol_words as a single word, similar to what `subword-mode' does and
+using the same internal functions.
+
** New nadvice.el package offering lighter-weight advice facilities.
It is layered as:
- add-function/remove-function which can be used to add/remove code on any
\f
* Incompatible Lisp Changes in Emacs 24.4
+** overriding-terminal-local-map does not replace the local keymaps any more.
+It used to disable the minor mode, major mode, and text-property keymaps,
+whereas now it simply has higher precedence.
+
+** Default process filters and sentinels are not nil any more.
+Instead they default to a function which does what the nil value used to do.
+
+** `read-event' does not return decoded chars in ttys any more.
+Just as was the case in Emacs-22 and before, decoding of tty input according to
+keyboard-coding-system is not performed in read-event any more. But contrary
+to that past, it is still done before input-decode-map/function-key-map/...
+
** Removed inhibit-local-menu-bar-menus.
** frame-local variables that affect redisplay do not work any more.
\f
* Lisp Changes in Emacs 24.4
+FIXME - someone who knows what they are talking about, please improve
+this - see http://debbugs.gnu.org/14596
+** The default file coding for Emacs Lisp files is now utf-8.
+(See file-coding-system-alist.) In most cases, this change is
+totally transparent. Files that contain unusual characters but do
+not specify an explicit coding system may fail to load with obscure
+errors. You should either convert them to utf-8 or add an explicit
+coding: cookie.
+
+** Obsoleted functions:
+*** `dont-compile'
+*** `lisp-complete-symbol'
+*** `field-complete'
+*** `minibuffer-completion-contents'
+*** `isearch-nonincremental-exit-minibuffer'
+*** `isearch-filter-visible'
+*** `generic-make-keywords-list'
+
+** `with-wrapper-hook' is obsoleted by `add-function'.
+The few hooks that used with-wrapper-hook are replaced as follows:
+*** `abbrev-expand-function' obsoletes `abbrev-expand-functions'.
+*** `completion-in-region-function' obsoletes `completion-in-region-functions'.
+*** `filter-buffer-substring-function' obsoletes `filter-buffer-substring-functions'.
+
+
+** `get-upcase-table' is obsoleted by the new `case-table-get-table'.
+
** Support for filesystem notifications.
Emacs now supports notifications of filesystem changes, such as
creation, modification, and deletion of files. This requires the
-'inotify' API on GNU/Linux systems. On MS-Windows systems, this is
-supported for Windows XP and newer versions.
+`glib' API, or the 'inotify' API (on GNU/Linux systems only). On
+MS-Windows systems, this is supported for Windows XP and newer
+versions.
** Changes in autorevert.el
** The `defalias-fset-function' property lets you catch calls to defalias
and redirect them to your own function instead of `fset'.
-** The lock for 'DIR/FILE' is now 'DIR/.#FILE' or 'DIR/.#-FILE'.
+** The lock for 'DIR/FILE' is now 'DIR/.#FILE' and may be a regular file.
When you edit DIR/FILE, Emacs normally creates a symbolic link
DIR/.#FILE as a lock that warns other instances of Emacs that DIR/FILE
is being edited. Formerly, if there was already a non-symlink file
through DIR/.#FILE.9. These fallbacks have been removed, so that
Emacs now no longer locks DIR/FILE in that case.
-On MS-Windows the lock is a regular file DIR/.#-FILE, not a symlink.
-MS-Windows and non-MS-Windows implementations of Emacs ignore each
-other's locks.
+On file systems that do not support symbolic links, the lock is now a
+regular file with contents being what would have been in the symlink.
** The 9th element returned by `file-attributes' is now unspecified.
Formerly, it was t if the file's gid would change if file were deleted
`preserve-extended-attributes' as it now handles both SELinux context
and ACL entries.
+** Changes to the Emacs Lisp Coding Conventions in Emacs 24.4
+
+*** The package descriptor and name of global variables, constants,
+and functions should be separated by two hyphens if the symbol is not
+meant to be used by other packages.
+
\f
* Changes in Emacs 24.4 on Non-Free Operating Systems
modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable
on-the-fly spell checking for comments and strings.
+**** New option, `prog-prettify-symbols' lets the user control symbol
+prettify (replacing a string like "lambda" with the Greek lambda
+character. The mode derived from `prog-mode' must call
+`prog-prettify-install' with its own custom alist, which can be empty.
+
*** New hook `change-major-mode-after-body-hook', run by
`run-mode-hooks' just before any other mode hooks.