See files NEWS.24, NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
and NEWS.1-17 for changes in older Emacs versions.
-You can narrow news to a specific version by calling `view-emacs-news'
+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.
Temporary note:
\f
* Installation Changes in Emacs 25.2
+** The new option 'configure --enable-gcc-warnings=warn-only' causes
+GCC to issue warnings without stopping the build. This behavior is
+now the default in developer builds. As before, use
+'--disable-gcc-warnings' to suppress GCC's warnings, and
+'--enable-gcc-warnings' to stop the build if GCC issues warnings.
+
+++
-** New configure option ‘--disable-build-details’ attempts to build an
+** The Emacs server now has socket-launching support. This allows
+socket based activation, where an external process like systemd can
+invoke the Emacs server process upon a socket connection event and
+hand the socket over to Emacs. Emacs uses this socket to service
+emacsclient commands. This new functionality can be disabled with the
+configure option '--disable-libsystemd'.
+
+** New configure option '--disable-build-details' attempts to build an
Emacs that is more likely to be reproducible; that is, if you build
and install Emacs twice, the second Emacs is a copy of the first.
Deterministic builds omit the build date from the output of the
\f
* Changes in Emacs 25.2
+---
+** `find-library-name' will now fall back on looking at `load-history'
+to try to locate libraries that have been loaded with an explicit path
+outside `load-path'.
+
+++
-** A number of accessors for the value returned by `file-attributes'
-has been added. They are: `file-attribute-type',
-`file-attribute-link-number', `file-attribute-user-id',
-`file-attribute-group-id', `file-attribute-access-time',
-`file-attribute-modification-time',
-`file-attribute-status-change-time', `file-attribute-size',
-`file-attribute-modes', `file-attribute-inode-number', and
-`file-attribute-device-number'
+** Faces in `minibuffer-prompt-properties' no longer overwrite properties
+in the text in functions like `read-from-minibuffer', but instead are
+added to the end of the face list. This allows users to say things
+like `(read-from-minibuffer (propertize "Enter something: " 'face 'bold))'.
+
++++
+** The new variable `extended-command-suggest-shorter' has been added
+to control whether to suggest shorter `M-x' commands or not.
---
-** The locale language name `ca' is now mapped to the language
-environment `Catalan', which has been added.
+** icomplete now respects `completion-ignored-extensions'.
+
++++
+** Non-breaking hypens are now displayed with the `nobreak-hyphen'
+face instead of the `escape-glyph' face.
---
-** `align-regexp' has a separate history for its interactive argument
-`align-regexp' no longer shares its history with all other
-history-less functions that use `read-string'
+** `C-x h' (`mark-whole-buffer') will now avoid marking the prompt
+part of minibuffers.
+
+---
+** `find-library' now takes a prefix argument to pop to a different
+window.
+
+** `find-library', `help-function-def' and `help-variable-def' now run
+`find-function-after-hook'.
+
+---
+** 'process-attributes' on Darwin systems now returns more information.
+
++++
+** Several accessors for the value returned by 'file-attributes'
+have been added. They are: 'file-attribute-type',
+'file-attribute-link-number', 'file-attribute-user-id',
+'file-attribute-group-id', 'file-attribute-access-time',
+'file-attribute-modification-time',
+'file-attribute-status-change-time', 'file-attribute-size',
+'file-attribute-modes', 'file-attribute-inode-number', and
+'file-attribute-device-number'.
+
++++
+** The new function 'buffer-hash' computes compute a fast, non-consing
+hash of a buffer's contents.
+
+---
+** 'fill-paragraph' no longer marks the buffer as changed unless it
+actually changed something.
+
+---
+** The locale language name 'ca' is now mapped to the language
+environment 'Catalan', which has been added.
+
+---
+** 'align-regexp' has a separate history for its interactive argument.
+'align-regexp' no longer shares its history with all other
+history-less functions that use 'read-string'.
+++
** The networking code has been reworked so that it's more
asynchronous than it was (when specifying :nowait t in
-`make-network-process'). How asynchronous it is varies based on the
+'make-network-process'). How asynchronous it is varies based on the
capabilities of the system, but on a typical GNU/Linux system the DNS
resolution, the connection, and (for TLS streams) the TLS negotiation
are all done without blocking the main Emacs thread. To get
asynchronous TLS, the TLS boot parameters have to be passed in (see
the manual for details).
-Certain process oriented functions (like `process-datagram-address')
+Certain process oriented functions (like 'process-datagram-address')
will block until socket setup has been performed. The recommended way
to deal with asynchronous sockets is to avoid interacting with them
until they have changed status to "run". This is most easily done
from a process sentinel.
-** ‘make-network-process’ and ‘open-network-stream’ sometimes allowed
+** 'make-network-process' and 'open-network-stream' sometimes allowed
:service to be an integer string (e.g., :service "993") and sometimes
required an integer (e.g., :service 993). This difference has been
eliminated, and integer strings work everywhere.
-** It is possible to disable attempted recovery on fatal signals
+** It is possible to disable attempted recovery on fatal signals.
-Two new variables allow to disable attempts to recover from stack
+Two new variables support disabling attempts to recover from stack
overflow and to avoid automatic auto-save when Emacs is delivered a
-fatal signal. `attempt-stack-overflow-recovery', if set to `nil',
+fatal signal. 'attempt-stack-overflow-recovery', if set to 'nil',
will disable attempts to recover from C stack overflows; Emacs will
then crash as with any other fatal signal.
-`attempt-orderly-shutdown-on-fatal-signal', if set to `nil', will
+'attempt-orderly-shutdown-on-fatal-signal', if set to 'nil', will
disable attempts to auto-save the session and shut down in an orderly
fashion when Emacs receives a fatal signal; instead, Emacs will
-terminate immediately. Both variables are non-`nil' by default.
+terminate immediately. Both variables are non-'nil' by default.
These variables are for users who would like to avoid the small
probability of data corruption due to techniques Emacs uses to recover
in these situations.
++++
+** A second dir-local file (.dir-locals-2.el) is now accepted.
+See the variable 'dir-locals-file-2' for more information.
+
+---
+** International domain names (IDNA) are now encoded via the new
+puny.el library, so that one can visit web sites with non-ASCII URLs.
+
++++
+** The new 'timer-list' command lists all active timers in a buffer,
+where you can cancel them with the 'c' command.
+
++++
+** The new function 'read-multiple-choice' prompts for multiple-choice
+questions, with a handy way to display help texts.
+
\f
* Editing Changes in Emacs 25.2
++++
+** New bindings for 'query-replace-map'.
+'undo', undo the last replacement; bound to 'u'.
+'undo-all', undo all replacements; bound to 'U'.
+
\f
* Changes in Specialized Modes and Packages in Emacs 25.2
+** Compilation mode
+
+---
+*** Messages from CMake are now recognized.
+
+** Dired
+
++++
+*** In wdired, when editing files to contain slash characters,
+the resulting directories are automatically created. Whether to do
+this is controlled by the 'wdired-create-parent-directories' variable.
+
++++
+*** 'W' is now bound to 'browse-url-of-dired-file', and is useful for
+viewing HTML files and the like.
+
** eww
+++
-*** A new `s' command for switching to another eww buffer via the minibuffer.
+*** A new 's' command for switching to another eww buffer via the minibuffer.
---
-*** The `o' command (`shr-save-contents') has moved to `O' to avoid collision
-with the `o' command from `image-map'.
+*** The 'o' command ('shr-save-contents') has moved to 'O' to avoid collision
+with the 'o' command from 'image-map'.
+
++++
+*** A new command 'C' ('eww-toggle-colors') can be used to toggle
+whether to use the HTML-specified colors or not. The user can also
+customize the 'shr-use-colors' variable.
+
+---
+*** Images that are being loaded are now marked with gray
+"placeholder" images of the size specified by the HTML. They are then
+replaced by the real images asynchronously, which will also now
+respect width/height HTML specs (unless they specify widths/heights
+bigger than the current window).
+
+** Images
+
++++
+*** Images are automatically scaled before displaying based on the
+'image-scaling-factor' variable (if Emacs supports scaling the images
+in question).
+
++++
+*** Images inserted with 'insert-image' and related functions get a
+keymap put into the text properties (or overlays) that span the
+image. This keymap binds keystrokes for manipulating size and
+rotation, as well as saving the image to a file. These commands are
+also available in 'image-mode'.
+
++++
+*** A new library for creating and manipulating SVG images has been
+added. See the "SVG Images" section in the lispref manual for
+details.
+
++++
+*** New setf-able function to access and set image parameters is
+provided: 'image-property'.
+++
** The commands that add ChangeLog entries now prefer a VCS root directory
for the ChangeLog file, if none already exists. Customize
-`change-log-directory-files' to nil for the old behavior.
+'change-log-directory-files' to nil for the old behavior.
---
-** Support for non-string values of `time-stamp-format' has been removed.
+** Support for non-string values of 'time-stamp-format' has been removed.
+
+** Message
+
+---
+*** 'message-use-idna' now defaults to t (because Emacs comes with
+built-in IDNA support now).
+
+---
+*** The 'message-valid-fqdn-regexp' variable has been removed, since
+there are now top-level domains added all the time. Message will no
+longer warn about sending emails to top-level domains it hasn't heard
+about.
+
+*** 'message-beginning-of-line' (bound to C-a) understands folded headers.
+In 'visual-line-mode' it will look for the true beginning of a header
+while in non-'visual-line-mode' it will move the point to the indented
+header's value.
** Tramp
+++
-*** New connection method "sg", which allows to edit files under
+*** New connection method "sg", which supports editing files under a
different group ID.
+++
*** New connection method "doas" for OpenBSD hosts.
---
-** `auto-revert-use-notify' is set back to t in `global-auto-revert-mode'.
+** 'auto-revert-use-notify' is set back to t in 'global-auto-revert-mode'.
+
+** CSS mode
+
+---
+*** Support for completing attribute values and bang-rules using the
+'completion-at-point' command.
+
++++
+** Emacs now supports character name escape sequences in character and
+string literals. The syntax variants \N{character name} and
+\N{U+code} are supported.
+
++++
+** Prog mode has some support for multi-mode indentation.
+This allows better indentation support in modes that support multiple
+programming languages in the same buffer, like literate programming
+environments or ANTLR programs with embedded Python code.
+
+A major mode can provide indentation context for a sub-mode through
+the 'prog-indentation-context' variable. To support this, modes that
+provide indentation should use 'prog-widen' instead of 'widen' and
+'prog-first-column' instead of a literal zero. See the node
+"Mode-Specific Indent" in the ELisp manual for more details.
+
+** ERC
+
+*** New variable 'erc-default-port-tls' used to connect to TLS IRC
+servers.
+
+** URL
+
++++
+*** The new function 'url-cookie-delete-cookie' can be used to
+programmatically delete all cookies, or cookies from a specific
+domain.
+
++++
+*** `url-retrieve-synchronously' now takes an optional timeout parameter.
+
+---
+*** The URL package now support HTTPS over proxies supporting CONNECT.
+
++++
+*** 'url-user-agent' now defaults to 'default', and the User-Agent
+string is computed dynamically based on 'url-privacy-level'.
+
+** VC and related modes
+
+---
+*** The VC state indicator in the mode line now defaults to more
+colorful faces to make it more obvious to the user what the state is.
+See the 'vc-faces' customization group.
\f
* New Modes and Packages in Emacs 25.2
* Incompatible Lisp Changes in Emacs 25.2
+++
-** Resizing a frame no longer runs `window-configuration-change-hook'.
-Put your function on `window-size-change-functions' instead.
+** Resizing a frame no longer runs 'window-configuration-change-hook'.
+Put your function on 'window-size-change-functions' instead.
+
+** 'C-up', 'C-down', 'C-left' and 'C-right' are now defined in term
+mode to send the same escape sequences that xterm does. This makes
+things like forward-word in readline work.
+
+---
+** hideshow mode got four key bindings that are analogous to outline
+mode bindings: 'C-c @ C-a', 'C-c @ C-t', 'C-c @ C-d', and 'C-c @ C-e.'
+
+** The grep/rgrep/lgrep functions will now ask about saving files
+before running. This is controlled by the 'grep-save-buffers'
+variable.
\f
* Lisp Changes in Emacs 25.2
-** New var syntax-ppss-table to control the syntax-table used in syntax-ppss
+** New var syntax-ppss-table to control the syntax-table used in syntax-ppss.
** Autoload files can be generated without timestamps,
-by setting `autoload-timestamps' to nil.
+by setting 'autoload-timestamps' to nil.
FIXME As an experiment, nil is the current default.
If no insurmountable problems before next release, it can stay that way.
-** `ert-with-function-mocked' of 'ert-x package allows mocking of functions
+** 'ert-with-function-mocked' of 'ert-x package allows mocking of functions
in unit tests.
---
-** `gnutls-boot' now takes a parameter :complete-negotiation that says
+** 'gnutls-boot' now takes a parameter :complete-negotiation that says
that negotiation should complete even on non-blocking sockets.
+++
-** New functions `window-pixel-width-before-size-change' and
-`window-pixel-height-before-size-change' allow to detect which window
-changed size when `window-size-change-functions' are run.
+** New functions 'window-pixel-width-before-size-change' and
+'window-pixel-height-before-size-change' support detecting which
+window changed size when 'window-size-change-functions' are run.
+++
-** New function `display-buffer-reuse-mode-window' is an action function
-suitable for use in `display-buffer-alist'. For example, to avoid creating
+** New function 'display-buffer-reuse-mode-window' is an action function
+suitable for use in 'display-buffer-alist'. For example, to avoid creating
a new window when opening man pages when there's already one, use
(add-to-list 'display-buffer-alist
'("\\`\\*Man .*\\*\\'" .
(inhibit-same-window . nil)
(mode . Man-mode))))
+---
+** There is now a new variable 'flyspell-sort-corrections-function'
+that allows changing the way corrections are sorted.
+
+---
+** The new command 'fortune-message' has been added, which displays
+fortunes in the echo area.
+
+++
-** `parse-partial-sexp' state has a new element. Element 10 is
+** New function 'func-arity' returns information about the argument list
+of an arbitrary function. This generalizes 'subr-arity' for functions
+that are not built-in primitives. We recommend using this new
+function instead of 'subr-arity'.
+
++++
+** 'parse-partial-sexp' state has a new element. Element 10 is
non-nil when the last character scanned might be the first character
-of a two character construct, i.e. a comment delimiter or escaped
+of a two character construct, i.e., a comment delimiter or escaped
character. Its value is the syntax of that last character.
+++
-** `parse-partial-sexp''s state, element 9, has now been confirmed as
+** 'parse-partial-sexp''s state, element 9, has now been confirmed as
permanent and documented, and may be used by Lisp programs. Its value
is a list of currently open parenthesis positions, starting with the
outermost parenthesis.
+---
+** 'read-color' will now display the color names using the color itself
+as the background color.
+
+** The function 'redirect-debugging-output' now works on platforms
+other than GNU/Linux.
+
++++
+** The new function 'string-version-lessp' compares strings by
+interpreting consecutive runs of numerical characters as numbers, and
+compares their numerical values. According to this predicate,
+"foo2.png" is smaller than "foo12.png".
+
++++
+** The new function 'char-from-name' converts a Unicode name string
+to the corresponding character code.
+
++++
+** New functions 'sxhash-eq' and 'sxhash-eql' return hash codes of a
+Lisp object suitable for use with 'eq' and 'eql' correspondingly. If
+two objects are 'eq' ('eql'), then the result of 'sxhash-eq'
+('sxhash-eql') on them will be the same.
+
++++
+** Function 'sxhash' has been renamed to 'sxhash-equal' for
+consistency with the new functions. For compatibility, 'sxhash'
+remains as an alias to 'sxhash-equal'.
+
++++
+** Time conversion functions that accept a time zone rule argument now
+allow it to be OFFSET or a list (OFFSET ABBR), where the integer
+OFFSET is a count of seconds east of Universal Time, and the string
+ABBR is a time zone abbreviation. The affected functions are
+'current-time-string', 'current-time-zone', 'decode-time',
+'format-time-string', and 'set-time-zone-rule'.
+
\f
* Changes in Emacs 25.2 on Non-Free Operating Systems
** Intercepting hotkeys on Windows 7 and later now works better.
The new keyboard hooking code properly grabs system hotkeys such as
Win-* and Alt-TAB, in a way that Emacs can get at them before the
-system. This makes the `w32-register-hot-key' functionality work
+system. This makes the 'w32-register-hot-key' functionality work
again on all versions of MS-Windows starting with Windows 7. On
Windows NT and later you can now register any hotkey combination. (On
Windows 9X, the previous limitations, spelled out in the Emacs manual,
still apply.)
+** `convert-standard-filename' no longer mirrors slashes on MS-Windows.
+Previously, on MS-Windows this function converted slash characters in
+file names into backslashes. It no longer does that.
+
\f
* Installation Changes in Emacs 25.1
be installed setgid. The option now defaults to the 'games' group.
---
-** The `grep-changelog' script (and its manual page) are no longer included.
+** The 'grep-changelog' script (and its manual page) are no longer included.
It has no particular connection to Emacs and has not changed in years,
so if you want to use it, you can always take a copy from an older Emacs.
---
** Emacs 25 comes with a new set of icons.
Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png.
-The old Emacs logo icons are available as `emacs23.png' in the same location.
+The old Emacs logo icons are available as 'emacs23.png' in the same location.
---
-** New make target `check-expensive' to run additional tests.
+** New make target 'check-expensive' to run additional tests.
This includes all tests which run via "make check", plus additional
tests which take more time to perform.
+++
** When Emacs is given a file as a command line argument and
-`initial-buffer-choice' is non-nil, display both the file and
-`initial-buffer-choice'. When Emacs is given more than one file and
-`initial-buffer-choice' is non-nil, show `initial-buffer-choice'
+'initial-buffer-choice' is non-nil, display both the file and
+'initial-buffer-choice'. When Emacs is given more than one file and
+'initial-buffer-choice' is non-nil, show 'initial-buffer-choice'
and *Buffer List*. This makes Emacs convenient to use from the
-command line when `initial-buffer-choice' is non-nil.
+command line when 'initial-buffer-choice' is non-nil.
+++
-** The value of ‘initial-scratch-message’ is now treated as a doc string
+** The value of 'initial-scratch-message' is now treated as a doc string
and can contain escape sequences for command keys, quotes, and the like.
+---
+** The default height of GUI frames was enlarged.
+This is so there's enough space in the initial window to display the
+optional text about recovering crashes sessions, without losing the
+splash image display.
+
\f
* Changes in Emacs 25.1
+++
** Xwidgets: a new feature for embedding native widgets inside Emacs buffers.
If you have gtk3 and webkitgtk3 installed, and Emacs was built with
-xwidget support, you can access the embedded webkit browser with `M-x
+xwidget support, you can access the embedded webkit browser with 'M-x
xwidget-webkit-browse-url'. This opens a new buffer with the embedded
-browser. The buffer will have a new mode, `xwidget-webkit-mode'
-(similar to `image-mode'), which supports the webkit widget.
+browser. The buffer will have a new mode, 'xwidget-webkit-mode'
+(similar to 'image-mode'), which supports the webkit widget.
+++
-*** New functions for xwidget-webkit mode `xwidget-webkit-insert-string',
-`xwidget-webkit-adjust-size-dispatch', `xwidget-webkit-back',
-`xwidget-webkit-browse-url', `xwidget-webkit-reload',
-`xwidget-webkit-current-url', `xwidget-webkit-scroll-backward',
-`xwidget-webkit-scroll-forward', `xwidget-webkit-scroll-down',
-`xwidget-webkit-scroll-up'.
+*** New functions for xwidget-webkit mode 'xwidget-webkit-insert-string',
+'xwidget-webkit-adjust-size-dispatch', 'xwidget-webkit-back',
+'xwidget-webkit-browse-url', 'xwidget-webkit-reload',
+'xwidget-webkit-current-url', 'xwidget-webkit-scroll-backward',
+'xwidget-webkit-scroll-forward', 'xwidget-webkit-scroll-down',
+'xwidget-webkit-scroll-up'.
+++
** Emacs can now load shared/dynamic libraries (modules).
A dynamic Emacs module is a shared library that provides additional
functionality for use in Emacs Lisp programs, just like a package
-written in Emacs Lisp would. The functions `load', `require',
-`load-file', etc. were extended to load such modules, as they do with
-Emacs Lisp packages. The new variable `module-file-suffix' holds the
-system-dependent value of the file-name extension (`.so' on Posix
+written in Emacs Lisp would. The functions 'load', 'require',
+'load-file', etc. were extended to load such modules, as they do with
+Emacs Lisp packages. The new variable 'module-file-suffix' holds the
+system-dependent value of the file-name extension ('.so' on Posix
hosts) of the module files.
A module should export a C-callable function named
-`emacs_module_init', which Emacs will call as part of the call to
-`load' or `require' which loads the module. It should also export a
-symbol named `plugin_is_GPL_compatible' to indicate that its code is
+'emacs_module_init', which Emacs will call as part of the call to
+'load' or 'require' which loads the module. It should also export a
+symbol named 'plugin_is_GPL_compatible' to indicate that its code is
released under the GPL or compatible license; Emacs will refuse to
load modules that don't export such a symbol.
If a module needs to call Emacs functions, it should do so through the
-API defined and documented in the header file `emacs-module.h'. Note
+API defined and documented in the header file 'emacs-module.h'. Note
that any module that provides Lisp-callable functions will have to use
-Emacs functions such as `fset' and `funcall', in order to register its
+Emacs functions such as 'fset' and 'funcall', in order to register its
functions with the Emacs Lisp interpreter.
-Modules can create `user-ptr' Lisp objects that embed pointers to C
-struct's defined by the module. This is useful for keeping around
+Modules can create 'user-ptr' Lisp objects that embed pointers to C
+structs defined by the module. This is useful for keeping around
complex data structures created by a module, to be passed back to the
module's functions. User-ptr objects can also have associated
"finalizers" -- functions to be run when the object is GC'ed; this is
useful for freeing any resources allocated for the underlying data
structure, such as memory, open file descriptors, etc. A new
-predicate `user-ptrp' returns non-nil if its argument is a `user-ptr'
+predicate 'user-ptrp' returns non-nil if its argument is a 'user-ptr'
object.
Loadable modules in Emacs are an experimental feature, and subject to
change in future releases. For that reason, their support is disabled
-by default, and must be enabled by using the `--with-modules' option
+by default, and must be enabled by using the '--with-modules' option
at configure time.
-+++
-** A second dir-local file (.dir-locals-2.el) is now accepted.
-See the variable `dir-locals-file-2' for more information.
-
+++
** Network security (TLS/SSL certificate validity and the like) is
added via the new Network Security Manager (NSM) and controlled via
-the `network-security-level' variable.
-
----
-** International domain names (IDNA) are now encoded via the new
-puny.el library, so that one can visit web sites like
-"http://méxico.icom.museum".
+the 'network-security-level' variable.
+++
** C-h l now also lists the commands that were run.
-** The new M-s M-w key binding uses eww to search the web for the
-text in the region.
-
+++
-** The new `timer-list' command lists all active timers in a buffer
-where you can cancel them with the `c' command.
-
-** M-x suggests shorthands and ignores obsolete commands for completion.
-** x-select-enable-clipboard is renamed select-enable-clipboard.
-x-select-enable-primary and renamed select-enable-primary.
+** x-select-enable-clipboard is renamed select-enable-clipboard
+and x-select-enable-primary is renamed select-enable-primary.
Additionally they both now apply to all systems (OSX, GNUstep, Windows, you
name it), with the proviso that on some systems (e.g. Windows)
select-enable-primary is ineffective since the system doesn't
have the equivalent of a primary selection.
+++
-** New option `switch-to-buffer-in-dedicated-window' allows you to
-customize how `switch-to-buffer' proceeds interactively when the
+** New option 'switch-to-buffer-in-dedicated-window' allows you to
+customize how 'switch-to-buffer' proceeds interactively when the
selected window is strongly dedicated to its buffer.
+++
-** The option `even-window-heights' has been renamed to
-`even-window-sizes' and now handles window widths as well.
-
-+++
-** New function `read-multiple-choice' use to prompt for
-multiple-choice questions, with a handy way to display help texts.
+** The option 'even-window-heights' has been renamed to
+'even-window-sizes' and now handles window widths as well.
+++
** terpri gets an optional arg ENSURE to conditionally output a newline.
+++
-** `insert-register' now leaves point after the inserted text
+** 'insert-register' now leaves point after the inserted text
when called interactively. A prefix argument toggles this behavior.
+++
-** The new variable `term-file-aliases' replaces some files from lisp/term.
-The function `tty-run-terminal-initialization' consults this variable
+** The new variable 'term-file-aliases' replaces some files from lisp/term.
+The function 'tty-run-terminal-initialization' consults this variable
when deciding what terminal-specific initialization code to run.
---
-** New variable `system-configuration-features', listing some of the
+** New variable 'system-configuration-features', listing some of the
main features that Emacs was compiled with. This is mainly intended
for use in Emacs bug reports.
+++
** A password is now hidden also when typed in batch mode. Another
-hiding character but the default `.' can be used by let-binding the
-variable `read-hide-char'.
+hiding character but the default '.' can be used by let-binding the
+variable 'read-hide-char'.
+++
** The Emacs pseudo-random number generator can be securely seeded.
On system where Emacs can access the system entropy or some other
-cryptographically secure random stream, it now uses that when `random'
-is called with its argument `t'. This allows cryptographically strong
+cryptographically secure random stream, it now uses that when 'random'
+is called with its argument 't'. This allows cryptographically strong
random values; in particular, the Emacs server now uses this facility
to produce its authentication key.
---
-** New input methods: `tamil-dvorak' and `programmer-dvorak'.
+** New input methods: 'tamil-dvorak' and 'programmer-dvorak'.
\f
* Editing Changes in Emacs 25.1
+++
*** Successive single-char deletions are collapsed in the undo-log just like
successive char insertions. Which commands invoke this behavior is
-controlled by the new `undo-auto-amalgamate' function. See the node
+controlled by the new 'undo-auto-amalgamate' function. See the node
"Undo" in the ELisp manual for more details.
+++
-*** The heuristic used to insert `undo-boundary' after each command
+*** The heuristic used to insert 'undo-boundary' after each command
has changed, so that if a command causes changes in more than just the
-current buffer, Emacs now calls `undo-boundary' in every buffer
+current buffer, Emacs now calls 'undo-boundary' in every buffer
affected by the command.
+++
-** New command `comment-line' bound to `C-x C-;'.
+** New command 'comment-line' bound to 'C-x C-;'.
** New and improved facilities for inserting Unicode characters
*** Unicode names entered via C-x 8 RET now use substring completion by default.
+++
-*** C-x 8 now has shorthands for these chars: ‐ ‑ ‒ – — ― ‘ ’ “ ” † ‡ • ′ ″
-€ № ← → ↔ − ≈ ≠ ≤ ≥. As before, you can type C-x 8 C-h to list shorthands.
+*** C-x 8 now has shorthands for several chars, such as U+2010
+(HYPHEN), U+2011 (NON-BREAKING HYPHEN), and U+2012 (FIGURE DASH). As
+before, you can type C-x 8 C-h to list shorthands.
+++
-*** New minor mode electric-quote-mode for quoting ‘like this’ and “like this”
-as you type. See also the new variable ‘text-quoting-style’.
+*** New minor mode electric-quote-mode for using curved quotes as you
+type. See also the new variable 'text-quoting-style'.
---
** New minor mode global-eldoc-mode is enabled by default.
standards.
+++
-** You can access `mouse-buffer-menu' (C-down-mouse-1) using C-f10.
+** You can access 'mouse-buffer-menu' (C-down-mouse-1) using C-f10.
+++
-** New buffer-local `electric-pair-local-mode'.
+** New buffer-local 'electric-pair-local-mode'.
+++
-** New variable `fast-but-imprecise-scrolling' inhibits
+** New variable 'fast-but-imprecise-scrolling' inhibits
fontification during full screen scrolling operations, giving less
hesitant operation during auto-repeat of C-v, M-v at the cost of
possible inaccuracies in the end position.
+++
-** New documentation command `describe-symbol'.
-Works for functions, variables, faces, etc. It is bound to `C-h o' by
+** New documentation command 'describe-symbol'.
+Works for functions, variables, faces, etc. It is bound to 'C-h o' by
default.
+++
-** New function `custom-prompt-customize-unsaved-options' checks for
+** New function 'custom-prompt-customize-unsaved-options' checks for
unsaved customizations and prompts user to customize (if found). It
is intended for adding to 'kill-emacs-query-functions'.
+++
-** The old `C-x w' bindings in hi-lock-mode are officially deprecated
-in favor of the global `M-s h' bindings introduced in Emacs-23.1.
+** The old 'C-x w' bindings in hi-lock-mode are officially deprecated
+in favor of the global 'M-s h' bindings introduced in Emacs-23.1.
They'll disappear soon.
-+++
-** New bindings for 'query-replace-map'.
-`undo', undo the last replacement; bound to `u'.
-`undo-all', undo all replacements; bound to `U'.
-
\f
* Changes in Specialized Modes and Packages in Emacs 25.1
** Checkdoc
+++
-*** New command `checkdoc-package-keywords' checks if the
+*** New command 'checkdoc-package-keywords' checks if the
current package keywords are recognized. Set the new option
-`checkdoc-package-keywords-flag' to non-nil to make
-`checkdoc-current-buffer' call this function automatically.
+'checkdoc-package-keywords-flag' to non-nil to make
+'checkdoc-current-buffer' call this function automatically.
+++
-*** New function `checkdoc-file' checks for style errors.
-It's meant for use together with `compile':
+*** New function 'checkdoc-file' checks for style errors.
+It's meant for use together with 'compile':
emacs -batch --eval "(checkdoc-file \"subr.el\")"
** Desktop
to version 206, you can do this with C-u C-u M-x desktop-save.
+++
-** New function `bookmark-set-no-overwrite' bound to C-x r M.
+** New function 'bookmark-set-no-overwrite' bound to C-x r M.
It raises an error if a bookmark of that name already exists,
-unlike `bookmark-set' which silently updates an existing bookmark.
+unlike 'bookmark-set' which silently updates an existing bookmark.
** Gnus
+++
-*** New user options `mm-html-inhibit-images' and `mm-html-blocked-images'
+*** New user options 'mm-html-inhibit-images' and 'mm-html-blocked-images'
now control how mm-* functions fetch and display images in an HTML
-message. Gnus still uses `gnus-inhibit-images' and `gnus-blocked-images'
+message. Gnus still uses 'gnus-inhibit-images' and 'gnus-blocked-images'
for that purpose, i.e., binds mm-html- variables with those gnus-
variables, but other packages do not have to bind gnus- variables now.
---
-*** `mm-inline-text-html-with-images' has been removed.
-Use `mm-html-inhibit-images' instead. Note that the value is opposite
+*** 'mm-inline-text-html-with-images' has been removed.
+Use 'mm-html-inhibit-images' instead. Note that the value is opposite
in meaning.
** IMAP
---
-*** `imap-ssl-program' has been removed, and imap.el uses the internal
+*** 'imap-ssl-program' has been removed, and imap.el uses the internal
GnuTLS encryption functions if possible.
** JSON
---
-*** `json-pretty-print' and `json-pretty-print-buffer' now maintain
+*** 'json-pretty-print' and 'json-pretty-print-buffer' now maintain
the ordering of object keys by default.
---
-*** New commands `json-pretty-print-ordered' and
-`json-pretty-print-buffer-ordered' pretty prints JSON objects with
+*** New commands 'json-pretty-print-ordered' and
+'json-pretty-print-buffer-ordered' pretty prints JSON objects with
object keys sorted alphabetically.
-+++
-** Prog mode has some support for multi-mode indentation.
-This allows better indentation support in modes that support multiple
-programming languages in the same buffer, like literate programming
-environments or ANTLR programs with embedded Python code.
-
-A major mode can provide indentation context for a sub-mode through
-the `prog-indentation-context' variable. To support this, modes that
-provide indentation should use `prog-widen' instead of `widen' and
-`prog-first-column' instead of a literal zero. See the node
-"Mode-Specific Indent" in the ELisp manual for more details.
-
** Prettify Symbols mode
+++
*** Prettify Symbols mode supports custom composition predicates. By
-overriding the default `prettify-symbols-compose-predicate', modes can
+overriding the default 'prettify-symbols-compose-predicate', modes can
specify in which contexts a symbol may be displayed as some Unicode
-character. `prettify-symbols-default-compose-p' is the default which
+character. 'prettify-symbols-default-compose-p' is the default which
is suitable for most programming languages such as C or Lisp (but not
(La)TeX).
+++
*** Symbols can be unprettified while point is inside them.
-New variable `prettify-symbols-unprettify-at-point' configures this.
+New variable 'prettify-symbols-unprettify-at-point' configures this.
** Enhanced xterm support
---
-*** The new variable `xterm-screen-extra-capabilities' for configuring xterm.
+*** The new variable 'xterm-screen-extra-capabilities' for configuring xterm.
This variable tells Emacs which advanced capabilities are available in
the xterm terminal emulator used to display Emacs text-mode frames.
The default is to check each capability, and use it if available.
---
*** Killing text now also sets the CLIPBOARD/PRIMARY selection
in the surrounding GUI (using the OSC-52 escape sequence). This only works
-if your xterm supports it and enables the `allowWindowOps' options (disabled
+if your xterm supports it and enables the 'allowWindowOps' options (disabled
by default at least in Debian, for security reasons).
Similarly, you can yank the CLIPBOARD/PRIMARY selection (using the OSC-52
escape sequence) if your xterm has the feature enabled but for that you
-additionally need to add `getSelection' to `xterm-extra-capabilities'.
+additionally need to add 'getSelection' to 'xterm-extra-capabilities'.
+++
-*** `xterm-mouse-mode' now supports mouse-tracking (if your xterm supports it).
+*** 'xterm-mouse-mode' now supports mouse-tracking (if your xterm supports it).
---
-** The way to turn on and off `save-place' mode has changed.
+** The way to turn on and off 'save-place' mode has changed.
It is no longer sufficient to load the saveplace library and set
-`save-place' non-nil. Instead, use the two new minor modes:
-`save-place-mode' turns on saving last place in every file, and
-`save-place-local-mode' does that only for the file in whose buffer it
-is invoked. The `save-place' variable is now an obsolete alias for
-`save-place-mode', which replaces it, and `toggle-save-place' is an
-obsolete alias for the new `save-place-local-mode' command.
+'save-place' non-nil. Instead, use the two new minor modes:
+'save-place-mode' turns on saving last place in every file, and
+'save-place-local-mode' does that only for the file in whose buffer it
+is invoked. The 'save-place' variable is now an obsolete alias for
+'save-place-mode', which replaces it, and 'toggle-save-place' is an
+obsolete alias for the new 'save-place-local-mode' command.
** ERC
+++
*** ERC can now hide message types by network or channel.
-`erc-hide-list' will hide all messages of the specified type, while
-`erc-network-hide-list' and `erc-channel-hide-list' will only hide the
+'erc-hide-list' will hide all messages of the specified type, while
+'erc-network-hide-list' and 'erc-channel-hide-list' will only hide the
specified message types for the respective specified targets.
-*** New variable `erc-default-port-tls' used to connect to TLS IRC
-servers.
-
---
*** Reconnection is now asynchronous.
---
*** New commands, key binds, and menu items.
-**** `<' and `>' for navigating previous and next tracks in playlist
+**** '<' and '>' for navigating previous and next tracks in playlist
-**** New play/pause command `mpc-toggle-play' bound to `s'
+**** New play/pause command 'mpc-toggle-play' bound to 's'
-**** `g' bound to new command `mpc-seek-current' will navigate current
+**** 'g' bound to new command 'mpc-seek-current' will navigate current
track.
-**** New commands `mpc-toggle-{consume,repeat,single,shuffle}' for
+**** New commands 'mpc-toggle-{consume,repeat,single,shuffle}' for
toggling playback modes.
---
** Midnight-mode
---
-*** `midnight-mode' is now a proper minor mode.
+*** 'midnight-mode' is now a proper minor mode.
---
*** clean-buffer-*-regexps can now specify buffers via predicate functions.
+++
*** New "external" package status.
An external package is any installed package that's not built-in and
-not from `package-user-dir', which usually means it's from an entry in
-`package-directory-list'. They are treated much like built-in
+not from 'package-user-dir', which usually means it's from an entry in
+'package-directory-list'. They are treated much like built-in
packages, in that they cannot be deleted through the package menu and
are not considered for upgrades.
The effect is that a user can manually place a specific version of a
-package inside `package-directory-list' and the package menu will
+package inside 'package-directory-list' and the package menu will
always respect that.
+++
*** If a package is available on multiple archives and one has higher
-priority (as per `package-archive-priorities') only that one is
-listed. This can be configured with `package-menu-hide-low-priority'.
+priority (as per 'package-archive-priorities') only that one is
+listed. This can be configured with 'package-menu-hide-low-priority'.
+++
-*** `package-menu-toggle-hiding' now toggles the hiding of packages.
+*** 'package-menu-toggle-hiding' now toggles the hiding of packages.
This includes the above-mentioned low-priority packages, as well as
available packages whose version is lower than the currently installed
version (which were previously impossible to display).
asynchronously.
---
-*** New variable `package-menu-async' controls whether the
+*** New variable 'package-menu-async' controls whether the
package-menu uses asynchronous downloads.
---
-*** `package-install-from-buffer' and `package-install-file' work on directories.
+*** 'package-install-from-buffer' and 'package-install-file' work on directories.
This follows the same rules as installing from a .tar file, except the
-pkg file is optional.
---
*** Packages which are dependencies of other packages cannot be deleted.
-The FORCE argument to `package-delete' overrides this.
+The FORCE argument to 'package-delete' overrides this.
---
-*** New custom variable `package-selected-packages' tracks packages
+*** New custom variable 'package-selected-packages' tracks packages
which were installed by the user (as opposed to installed as
dependencies). This variable can also be manually customized.
---
-*** New command `package-install-selected-packages' installs all
-packages from `package-selected-packages' which are currently missing.
+*** New command 'package-install-selected-packages' installs all
+packages from 'package-selected-packages' which are currently missing.
---
-*** `package-install' function now takes a DONT-SELECT argument. If
+*** 'package-install' function now takes a DONT-SELECT argument. If
this function is called interactively or if DONT-SELECT is nil, add the
-package being installed to `package-selected-packages'.
+package being installed to 'package-selected-packages'.
---
-*** New command `package-autoremove' removes all packages which were
+*** New command 'package-autoremove' removes all packages which were
installed strictly as dependencies but are no longer needed.
+++
** Shell
-When you invoke `shell' interactively, the *shell* buffer will now
+When you invoke 'shell' interactively, the *shell* buffer will now
display in a new window. However, you can customize this behavior via
-the `display-buffer-alist' variable. For example, to get
+the 'display-buffer-alist' variable. For example, to get
the old behavior -- *shell* buffer displays in current window -- use
(add-to-list 'display-buffer-alist
'("^\\*shell\\*$" . (display-buffer-same-window))).
** EIEIO
+++
-*** The `:protection' slot option is not obeyed any more.
+*** The ':protection' slot option is not obeyed any more.
+++
-*** The `newname' argument to constructors is optional&deprecated.
-If you need your objects to be named, do it by inheriting from `eieio-named'.
+*** The 'newname' argument to constructors is optional&deprecated.
+If you need your objects to be named, do it by inheriting from 'eieio-named'.
+++
*** The <class>-list-p and <class>-child-p functions are declared obsolete.
+++
*** defgeneric and defmethod are declared obsolete.
Use the equivalent facilities from cl-generic.el instead.
+++
-*** `constructor' is now an obsolete alias for `make-instance'.
---- `pcase' accepts a new UPattern `eieio'.
+*** 'constructor' is now an obsolete alias for 'make-instance'.
+--- 'pcase' accepts a new UPattern 'eieio'.
** ido
+++
-*** New command `ido-bury-buffer-at-head' bound to C-S-b
-Bury the buffer at the head of `ido-matches', analogous to how C-k
+*** New command 'ido-bury-buffer-at-head' bound to C-S-b
+Bury the buffer at the head of 'ido-matches', analogous to how C-k
kills the buffer at head.
---
-*** A prefix argument to `ido-restrict-to-matches' will reverse its
+*** A prefix argument to 'ido-restrict-to-matches' will reverse its
meaning, and the list is restricted to those elements that do not
match the current input.
+++
*** You can use <UP> and <DOWN> arrow keys to move through history by lines.
-The new commands `next-line-or-history-element' and
-`previous-line-or-history-element', bound to <UP> and <DOWN> in the
+The new commands 'next-line-or-history-element' and
+'previous-line-or-history-element', bound to <UP> and <DOWN> in the
minibuffer, allow by-line movement through minibuffer history,
similarly to an ordinary buffer. Only when point moves over
the bottom/top of the minibuffer it goes to the next/previous history
-element. `M-p' and `M-n' still move directly to previous/next history
+element. 'M-p' and 'M-n' still move directly to previous/next history
item as before.
** Search and Replace
+++
-*** `isearch' and `query-replace' can now perform character folding in matches.
+*** 'isearch' and 'query-replace' can now perform character folding in matches.
This is analogous to case folding, but instead of disregarding case
variants, it disregards wider classes of distinctions between similar
characters. (Case folding is a special case of character folding.)
groups of characters instead of just themselves.
For instance, the ASCII double quote character " will match all
-variants of double quotes (like “ and ”), and the letter a will match
-all of its accented cousins, even those composed of multiple
-characters, as well as many other symbols like ℀, ℁, ⒜, and ⓐ.
+variants of double quotes, and the letter 'a' will match all of its
+accented cousins, even those composed of multiple characters, as well
+as many other symbols like U+249C (PARENTHESIZED LATIN SMALL LETTER
+A).
-Character folding is enabled by customizing `search-default-mode' to
-the value `character-fold-to-regexp'. You can also toggle character
-folding in the middle of a search by typing `M-s ''.
+Character folding is enabled by customizing 'search-default-mode' to
+the value 'character-fold-to-regexp'. You can also toggle character
+folding in the middle of a search by typing 'M-s ''.
-`query-replace' honors character folding if the new variable
-`replace-character-fold' is customized to a non-nil value.
+'query-replace' honors character folding if the new variable
+'replace-character-fold' is customized to a non-nil value.
+++
-*** New user option `search-default-mode'.
+*** New user option 'search-default-mode'.
This option specifies the default mode for Isearch. The default
value, nil specifies that Isearch does literal searches (however,
-`case-fold-search' and `isearch-lax-whitespace' may still be applied,
+'case-fold-search' and 'isearch-lax-whitespace' may still be applied,
as in previous Emacs versions).
+++
-*** New function `character-fold-to-regexp' can be used
+*** New function 'character-fold-to-regexp' can be used
by searching commands to produce a regexp matching anything that
character-folds into STRING.
+++
*** The new M-s M-w key binding uses eww to search the web for the
text in the region. The search engine to use for this is specified by
-the customizable variable `eww-search-prefix'.
+the customizable variable 'eww-search-prefix'.
+++
*** Query-replace history is enhanced.
When query-replace reads the FROM string from the minibuffer, typing
-`M-p' will now show previous replacements as "FROM SEP TO", where FROM
+'M-p' will now show previous replacements as "FROM SEP TO", where FROM
and TO are the original text and its replacement, and SEP is an arrow
-string defined by the new variable `query-replace-from-to-separator'.
-To select a prior replacement, type `M-p' until the desired
+string defined by the new variable 'query-replace-from-to-separator'.
+To select a prior replacement, type 'M-p' until the desired
replacement appears in the minibuffer, and then exit the minibuffer by
typing RET.
** Calc
+++
-*** If `quick-calc' is called with a prefix argument, insert the
+*** If 'quick-calc' is called with a prefix argument, insert the
result of the calculation into the current buffer.
+++
** ElDoc
+++
-*** New minor mode `global-eldoc-mode'
-It is turned on by default, and affects `*scratch*' and other buffers
+*** New minor mode 'global-eldoc-mode'
+It is turned on by default, and affects '*scratch*' and other buffers
whose major mode supports Emacs Lisp.
---
-*** `eldoc-documentation-function' now defaults to `ignore'
+*** 'eldoc-documentation-function' now defaults to 'ignore'
---
-*** `describe-char-eldoc' displays information about character at point,
-and can be used as a default value of `eldoc-documentation-function'. It is
-useful when, for example, one needs to distinguish various spaces (e.g. ] [,
-] [, ] [, etc.) while using mono-spaced font.
+*** 'describe-char-eldoc' displays information about character at point,
+and can be used as a default value of 'eldoc-documentation-function'. It is
+useful when, for example, one needs to distinguish various spaces - e.g.,
+U+00A0 (NO-BREAK SPACE), U+2002 (EN SPACE), and U+2009 (THIN SPACE) - while
+using mono-spaced font.
** eww
*** HTML can now be rendered using variable-width fonts.
+++
-*** A new command `F' (`eww-toggle-fonts') can be used to toggle
+*** A new command 'F' ('eww-toggle-fonts') can be used to toggle
whether to use variable-pitch fonts or not. The user can also
-customize the `shr-use-fonts' variable.
-
-+++
-*** A new command `C' (`eww-toggle-colors') can be used to toggle
-whether to use the HTML-specified colors or not. The user can also
-customize the `shr-use-colors' variable.
+customize the 'shr-use-fonts' variable.
+++
-*** A new command `R' (`eww-readable') will try do identify the main
+*** A new command 'R' ('eww-readable') will try do identify the main
textual parts of a web page and display only that, leaving menus and
the like off the page.
+++
-*** A new command `D' (`eww-toggle-paragraph-direction') allows you to
+*** A new command 'D' ('eww-toggle-paragraph-direction') allows you to
toggle the paragraph direction between left-to-right and right-to-left.
----
-*** Images that are being loaded are now marked with grey
-"placeholder" images of the size specified by the HTML. They are then
-replaced by the real images asynchronously, which will also now
-respect width/height HTML specs (unless they specify widths/heights
-bigger than the current window).
-
---
*** You can now use several eww buffers in parallel by renaming eww
buffers you want to keep separate.
pages visited) is now preserved in the desktop file.
+++
-*** `eww-after-render-hook' is now called after eww has rendered
+*** 'eww-after-render-hook' is now called after eww has rendered
the data in the buffer.
---
-*** The `eww-reload' command now takes a prefix to not reload via
+*** The 'eww-reload' command now takes a prefix to not reload via
the net, but just use the local copy of the HTML.
+++
details.
+++
-*** `mailcap-mime-data' is now consulted when displaying PDF files.
+*** 'mailcap-mime-data' is now consulted when displaying PDF files.
+++
-*** The new `S' command will list all eww buffers, and allow managing
+*** The new 'S' command will list all eww buffers, and allow managing
them.
---
*** text/html messages that contain inline image parts will be
transformed into multipart/related messages before sending.
----
-*** The `message-valid-fqdn-regexp' variable has been removed, since
-there are now top-level domains added all the time. Message will no
-longer warn about sending emails to top-level domains it hasn't heard
-about.
-
-*** `message-beginning-of-line' (bound to C-a) understands folded headers.
-In `visual-line-mode' it will look for the true beginning of a header
-while in non-`visual-line-mode' it will move the point to the indented
-header’s value.
-
+++
** In Show Paren Mode, a parenthesis can be highlighted when point
stands inside it, and certain parens can be highlighted when point is
at BOL or EOL, or in whitespace there. To enable these, customize,
-respectively, `show-paren-when-point-inside-paren' or
-`show-paren-when-point-in-periphery'.
+respectively, 'show-paren-when-point-inside-paren' or
+'show-paren-when-point-in-periphery'.
---
** If gpg2 exists on the system, it is now used as the default value
-of `epg-gpg-program' (instead of gpg).
-
-** Images
-
-+++
-*** Images are automatically scaled before displaying based on the
-`image-scaling-factor' variable (if Emacs supports scaling the images
-in question).
-
-+++
-*** Images inserted with `insert-image' and related functions get a
-keymap put into the text properties (or overlays) that span the
-image. This keymap binds keystrokes for manipulating size and
-rotation, as well as saving the image to a file. These commands are
-also available in `image-mode'.
-
-+++
-*** A new library for creating and manipulating SVG images has been
-added. See the "SVG Images" section in the lispref manual for
-details.
-
-+++
-*** New setf-able function to access and set image parameters is
-provided: `image-property'.
-
+of 'epg-gpg-program' (instead of gpg).
** Lisp mode
---
-*** Strings after `:documentation' are highlighted as docstrings.
+*** Strings after ':documentation' are highlighted as docstrings.
This enhances Lisp mode fontification to handle documentation of the
-form `(:documentation "the doc string")' used in Common Lisp code for
+form '(:documentation "the doc string")' used in Common Lisp code for
CLOS class and slot documentation.
** Rectangle editing
+++
*** C-x C-x in rectangle-mark-mode now cycles through the four corners.
-*** `string-rectangle' provides on-the-fly preview of the result.
+*** 'string-rectangle' provides on-the-fly preview of the result.
+++
-** New font-lock functions `font-lock-ensure' and `font-lock-flush'.
-These should be used in preference to `font-lock-fontify-buffer' when
+** New font-lock functions 'font-lock-ensure' and 'font-lock-flush'.
+These should be used in preference to 'font-lock-fontify-buffer' when
called from Lisp.
---
-** Macro `minibuffer-with-setup-hook' can optionally append a function
-to `minibuffer-setup-hook'.
+** Macro 'minibuffer-with-setup-hook' can optionally append a function
+to 'minibuffer-setup-hook'.
-If the first argument of the macro is of the form `(:append FUN)',
-then FUN will be appended to `minibuffer-setup-hook', instead of
+If the first argument of the macro is of the form '(:append FUN)',
+then FUN will be appended to 'minibuffer-setup-hook', instead of
prepending it.
** cl-lib
+++
-*** New functions `cl-fresh-line', `cl-digit-char-p', and `cl-parse-integer'.
+*** New functions 'cl-fresh-line', 'cl-digit-char-p', and 'cl-parse-integer'.
---
-*** `pcase' accepts the new UPattern `cl-struct'.
+*** 'pcase' accepts the new UPattern 'cl-struct'.
** Calendar and diary
+++
-*** The default `diary-file' is now located in .emacs.d.
+*** The default 'diary-file' is now located in .emacs.d.
+++
*** New commands to insert diary entries with Chinese dates:
-`diary-chinese-insert-anniversary-entry' `diary-chinese-insert-entry'
-`diary-chinese-insert-monthly-entry', `diary-chinese-insert-yearly-entry'.
+'diary-chinese-insert-anniversary-entry' 'diary-chinese-insert-entry'
+'diary-chinese-insert-monthly-entry', 'diary-chinese-insert-yearly-entry'.
+++
*** The calendar can now list and mark diary entries with Chinese dates.
-See `diary-chinese-list-entries' and `diary-chinese-mark-entries'.
+See 'diary-chinese-list-entries' and 'diary-chinese-mark-entries'.
---
-*** The option `calendar-mode-line-format' can now be nil,
+*** The option 'calendar-mode-line-format' can now be nil,
which means to do nothing special with the mode line in calendars.
+++
-*** New option `calendar-weekend-days'.
+*** New option 'calendar-weekend-days'.
The option customizes which day headers receive the
-`calendar-weekend-header' face.
+'calendar-weekend-header' face.
---
-*** New optional args N and STRING for ‘holiday-greek-orthodox-easter’.
+*** New optional args N and STRING for 'holiday-greek-orthodox-easter'.
---
*** Many items obsolete since at least version 23.1 have been removed.
The majority were function/variable/face aliases, too numerous to list here.
The remainder were:
-**** Functions `calendar-one-frame-setup', `calendar-only-one-frame-setup',
-`calendar-two-frame-setup', `european-calendar', `american-calendar'.
+**** Functions 'calendar-one-frame-setup', 'calendar-only-one-frame-setup',
+'calendar-two-frame-setup', 'european-calendar', 'american-calendar'.
-**** Hooks `cal-menu-load-hook', `cal-x-load-hook'.
+**** Hooks 'cal-menu-load-hook', 'cal-x-load-hook'.
-**** Macro `calendar-for-loop'.
+**** Macro 'calendar-for-loop'.
-**** Variables `european-calendar-style', `diary-face', `hebrew-holidays-{1,4}'.
+**** Variables 'european-calendar-style', 'diary-face', 'hebrew-holidays-{1,4}'.
-**** The nil and list forms of `diary-display-function'.
+**** The nil and list forms of 'diary-display-function'.
+++
-** New ERT function `ert-summarize-tests-batch-and-exit'.
+** New ERT function 'ert-summarize-tests-batch-and-exit'.
If the output of ERT tests in batch mode execution can be saved to a
log file, then it can be passed as an argument to the above function
to produce a neat summary.
---
-** New js.el option `js-indent-first-init'.
+** New js.el option 'js-indent-first-init'.
** Info
---
** Info mode now displays symbol names in fixed-pitch font.
-If you want to get the old behavior back, customize the `Info-quoted'
+If you want to get the old behavior back, customize the 'Info-quoted'
face to use the same definitions as the default face.
---
-*** `Info-fontify-maximum-menu-size' can be t for no limit.
+*** 'Info-fontify-maximum-menu-size' can be t for no limit.
+++
-*** `info-display-manual' can now be given a prefix argument which (any
+*** 'info-display-manual' can now be given a prefix argument which (any
non-nil value) directs the command to limit the completion
alternatives to currently visited manuals.
** Rmail
+++
-*** The Rmail commands `d', `C-d' and `u' take optional repeat counts
+*** The Rmail commands 'd', 'C-d' and 'u' take optional repeat counts
to delete or undelete multiple messages.
+++
libxml2 or if you have the Lynx browser installed. By default, Rmail
will display the HTML version of a mail message that has both HTML and
plain text parts, if display of HTML email is possible; customize the
-`rmail-mime-prefer-html' option to `nil' if you don't want that.
+'rmail-mime-prefer-html' option to 'nil' if you don't want that.
+++
*** In the commands that make summaries by subject, recipients, or senders,
you can no longer use commas to separate regular expressions.
+++
-** SES now supports local printer functions; see `ses-define-local-printer'.
+** SES now supports local printer functions; see 'ses-define-local-printer'.
** Shell-script Mode
---
-*** In sh-mode you can now use `sh-shell' as a file-local variable to
+*** In sh-mode you can now use 'sh-shell' as a file-local variable to
specify the type of shell in use (bash, csh, etc).
---
-*** New value `always' for `sh-indent-after-continuation'.
+*** New value 'always' for 'sh-indent-after-continuation'.
This provides old-style ("dumb") indentation of continued lines.
-See the doc string of `sh-indent-after-continuation' for details.
+See the doc string of 'sh-indent-after-continuation' for details.
** TLS
---
program is used instead. This program used to be run in --insecure
mode by default, but has now changed to be secure instead, and will
fail if you try to connect to non-verifiable hosts. This is
-controlled by the `tls-program' variable.
+controlled by the 'tls-program' variable.
** URL
+++
*** The URL package accepts now the protocols "ssh", "scp" and "rsync".
-When `url-handler-mode' is enabled, file operations for these
+When 'url-handler-mode' is enabled, file operations for these
protocols as well as for "telnet" and "ftp" are passed to Tramp.
+++
-*** The URL package allows customizing the `url-user-agent' string.
-The new `url-user-agent' variable can be customized to be a string or
+*** The URL package allows customizing the 'url-user-agent' string.
+The new 'url-user-agent' variable can be customized to be a string or
a function.
---
-*** The new interface variable `url-request-noninteractive' can be used
+*** The new interface variable 'url-request-noninteractive' can be used
to specify that we're running in a noninteractive context, and that
we should not be queried about things like TLS certificate validity.
---
-*** `url-mime-accept-string' can now be used as in "interface"
-variable, meaning you can bind it around an `url-retrieve' call.
+*** 'url-mime-accept-string' can now be used as in "interface"
+variable, meaning you can bind it around an 'url-retrieve' call.
---
*** If URL is used with a https connection, the first callback argument
plist will contain a :peer element that has the output of
-`gnutls-peer-status' (if Emacs is built with GnuTLS support).
-
-+++
-*** The new function `url-cookie-delete-cookie' can be used to
-programmatically delete all cookies, or cookies from a specific
-domain.
+'gnutls-peer-status' (if Emacs is built with GnuTLS support).
** Tramp
+++
*** Method-specific parameters can be overwritten now with variable
-`tramp-connection-properties'.
+'tramp-connection-properties'.
---
-*** Handler for `file-notify-valid-p' for remote machines that support
+*** Handler for 'file-notify-valid-p' for remote machines that support
filesystem notifications.
** SQL mode
---
-*** New user variable `sql-default-directory' enables remote
+*** New user variable 'sql-default-directory' enables remote
connections using Tramp.
---
-*** New command `sql-send-line-and-next'.
-This command, bound to `C-c C-n' by default, sends the current line to
+*** New command 'sql-send-line-and-next'.
+This command, bound to 'C-c C-n' by default, sends the current line to
the SQL process and advances to the next line, skipping whitespace and
comments.
** VC and related modes
+++
-*** Basic push support, via `vc-push', bound to `C-x v P'.
+*** Basic push support, via 'vc-push', bound to 'C-x v P'.
Implemented for Bzr, Git, Hg. As part of this change, the pre-existing
(undocumented) command vc-hg-push now behaves slightly differently.
*** The new command vc-region-history shows the log+diff of the active region.
+++
-*** You can refresh the VC state of a file buffer with `M-x vc-refresh-state'.
+*** You can refresh the VC state of a file buffer with 'M-x vc-refresh-state'.
This command is useful when you perform version control commands
outside Emacs (e.g., from the shell prompt), or if you switch the VC
back-end for the buffer's file, or remove it from version control.
----
-*** The VC state indicator in the mode line now defaults to more
-colorful faces to make it more obvious to the user what the state is.
-See the `vc-faces' customization group.
-
+++
-*** New option `vc-annotate-background-mode' controls whether
-the color range from `vc-annotate-color-map' is applied to the
+*** New option 'vc-annotate-background-mode' controls whether
+the color range from 'vc-annotate-color-map' is applied to the
background or to the foreground.
+---
+*** New options for customizing encoding of Git commit log messages.
+The new user options 'vc-git-commits-coding-system' and
+'vc-git-log-output-coding-system' specify the encoding of log messages
+sent to Git when committing, and the decoding of log messages read
+from Git history commands. These options default to UTF-8; if
+customized, they should be consistent with the Git config variables
+i18n.commitEncoding and i18n.logOutputEncoding.
+('vc-git-commits-coding-system' existed previously, but was a
+variable, not a user option.)
+
+++
-*** `compare-windows' now compares text with the most recently selected window
+*** 'compare-windows' now compares text with the most recently selected window
instead of the next window. If you want the previous behavior of
comparing with the next window, customize the new option
-`compare-windows-get-window-function' to the value
-`compare-windows-get-next-window'.
+'compare-windows-get-window-function' to the value
+'compare-windows-get-next-window'.
---
-*** Two new faces `compare-windows-removed' and `compare-windows-added'
-replace the face `compare-windows', which is now an obsolete alias for
-`compare-windows-added'.
+*** Two new faces 'compare-windows-removed' and 'compare-windows-added'
+replace the face 'compare-windows', which is now an obsolete alias for
+'compare-windows-added'.
---
*** The VC state indicator in the mode line now has different faces
-corresponding to each of the possible states. See the `vc-faces'
+corresponding to each of the possible states. See the 'vc-faces'
customization group.
---
-*** `log-edit-insert-changelog' converts "(tiny change)" to
-"Copyright-paperwork-exempt: yes". Set `log-edit-rewrite-tiny-change'
+*** 'log-edit-insert-changelog' converts "(tiny change)" to
+"Copyright-paperwork-exempt: yes". Set 'log-edit-rewrite-tiny-change'
nil to disable this.
++++
+*** vc-mcvs.el has been removed.
+
---
** VHDL mode now supports VHDL'08.
scanning of #define'd symbols.
---
-*** New command `hif-evaluate-macro', bound to `C-c @ e', displays the
+*** New command 'hif-evaluate-macro', bound to 'C-c @ e', displays the
result of evaluating a macro.
---
-*** New command `hif-clear-all-ifdef-define', bound to `C-c @ C', clears
-all defined symbols in `hide-ifdef-env'.
+*** New command 'hif-clear-all-ifdef-define', bound to 'C-c @ C', clears
+all defined symbols in 'hide-ifdef-env'.
---
-*** New custom variable `hide-ifdef-header-regexp' to define C/C++ header
-file name patterns. Defaults to files whose extension is one of `.h',
-`.hh', `.hpp', `.hxx', or `.h++', matched case-insensitively.
+*** New custom variable 'hide-ifdef-header-regexp' to define C/C++ header
+file name patterns. Defaults to files whose extension is one of '.h',
+'.hh', '.hpp', '.hxx', or '.h++', matched case-insensitively.
---
-*** New custom variable `hide-ifdef-expand-reinclusion-protection' to prevent
+*** New custom variable 'hide-ifdef-expand-reinclusion-protection' to prevent
reinclusion protected (a.k.a. "idempotent") header files from being hidden.
(This could happen when an idempotent header file is visited again,
-when its guard symbol is already defined.) Defaults to `t'.
+when its guard symbol is already defined.) Defaults to 't'.
---
-*** New custom variable `hide-ifdef-exclude-define-regexp' to define symbol
+*** New custom variable 'hide-ifdef-exclude-define-regexp' to define symbol
name patterns (e.g. all "FOR_DOXYGEN_ONLY_*") to be ignored when
looking for macro definitions. By default, no symbols are ignored.
** TeX mode
+++
-*** New custom variable `tex-print-file-extension' to help users who
+*** New custom variable 'tex-print-file-extension' to help users who
use PDF instead of DVI.
+++
*** TeX mode now supports Prettify Symbols mode. When enabling
-`prettify-symbols-mode' in a tex-mode buffer, \alpha ... \omega, and
+'prettify-symbols-mode' in a tex-mode buffer, \alpha ... \omega, and
many other math macros are displayed using unicode characters.
+++
-** New `big-indent' style in `whitespace-mode' highlights deep indentation.
+** New 'big-indent' style in 'whitespace-mode' highlights deep indentation.
By default, 32 consecutive spaces or four consecutive TABs are
considered to be too deep, but the new variable
-`whitespace-big-indent-regexp' can be customized to change that.
+'whitespace-big-indent-regexp' can be customized to change that.
---
-** New options in `tildify-mode'.
-New options `tildify-space-string', `tildify-pattern', and
-`tildify-foreach-region-function' variables make
-`tildify-string-alist', `tildify-pattern-alist', and
-`tildify-ignored-environments-alist' variables (as well as a few
+** New options in 'tildify-mode'.
+New options 'tildify-space-string', 'tildify-pattern', and
+'tildify-foreach-region-function' variables make
+'tildify-string-alist', 'tildify-pattern-alist', and
+'tildify-ignored-environments-alist' variables (as well as a few
helper functions) obsolete.
+++
while still using the etags.el code that reads the TAGS tables as one
of its back-ends.
-The command `xref-find-definitions' replaces `find-tag' and provides
+The command 'xref-find-definitions' replaces 'find-tag' and provides
an interface to pick one definition among several.
-`tags-loop-continue' is now unbound. `xref-pop-marker-stack' replaces
-`pop-tag-mark', but has a keybinding (`M-,') different from the one
-`pop-tag-mark' used.
+'tags-loop-continue' is now unbound. 'xref-pop-marker-stack' replaces
+'pop-tag-mark', but has a keybinding ('M-,') different from the one
+'pop-tag-mark' used.
-`xref-find-definitions-other-window' replaces `find-tag-other-window'.
-`xref-find-definitions-other-frame' replaces `find-tag-other-frame'.
-`xref-find-apropos' replaces `find-tag-regexp'.
+'xref-find-definitions-other-window' replaces 'find-tag-other-window'.
+'xref-find-definitions-other-frame' replaces 'find-tag-other-frame'.
+'xref-find-apropos' replaces 'find-tag-regexp'.
As a result of this, the following commands are now obsolete:
-`find-tag-other-window', `find-tag-other-frame', `find-tag-regexp',
-`tags-apropos'.
+'find-tag-other-window', 'find-tag-other-frame', 'find-tag-regexp',
+'tags-apropos'.
-`tags-loop-continue' is not obsolete because it's still useful in
-`tags-search' and `tags-query-replace', for which there are no direct
+'tags-loop-continue' is not obsolete because it's still useful in
+'tags-search' and 'tags-query-replace', for which there are no direct
replacements yet.
+++
-*** Variants of `tags-search' and `tags-query-replace' in Dired were also
+*** Variants of 'tags-search' and 'tags-query-replace' in Dired were also
replaced by xref-style commands, see the "Dired" section below.
+++
*** New variables
-`find-tag-marker-ring-length' is now an obsolete alias for
-`xref-marker-ring-length'. `find-tag-marker-ring' is now an obsolete
-alias for a private variable. `xref-push-marker-stack' and
-`xref-pop-marker-stack' should be used instead to manipulate the stack
+'find-tag-marker-ring-length' is now an obsolete alias for
+'xref-marker-ring-length'. 'find-tag-marker-ring' is now an obsolete
+alias for a private variable. 'xref-push-marker-stack' and
+'xref-pop-marker-stack' should be used instead to manipulate the stack
of searches for definitions.
---
-*** `xref-find-definitions' and `describe-function' now display
+*** 'xref-find-definitions' and 'describe-function' now display
information about mode local overrides (defined by cedet/mode-local.el
-`define-overloadable-function' `define-mode-local-overrides').
+'define-overloadable-function' 'define-mode-local-overrides').
The framework's Lisp API is still experimental and can change in major,
backward-incompatible ways.
The new package Project provides generic infrastructure for dealing
with projects. The main commands included in it are
-`project-find-file' and `project-find-regexp'.
+'project-find-file' and 'project-find-regexp'.
The Lisp API of this package is still experimental.
There have also been customization changes.
+++
-*** New custom variable `eudc-server-hotlist' to allow specifying
+*** New custom variable 'eudc-server-hotlist' to allow specifying
multiple EUDC servers in init file.
+++
-*** Custom variable `eudc-inline-query-format' defaults to completing
+*** Custom variable 'eudc-inline-query-format' defaults to completing
on email and firstname instead of surname.
---
-*** Custom variable `eudc-expansion-overwrites-query' defaults to nil
+*** Custom variable 'eudc-expansion-overwrites-query' defaults to nil
to avoid interfering with the kill ring.
+++
-*** Custom variable `eudc-inline-expansion-format' defaults to
+*** Custom variable 'eudc-inline-expansion-format' defaults to
"Firstname Surname <mail-address>".
+++
-*** Custom variable `eudc-options-file' defaults to
+*** Custom variable 'eudc-options-file' defaults to
"~/.emacs.d/eudc-options".
---
-*** New custom variable `ldap-ldapsearch-password-prompt-regexp' to
+*** New custom variable 'ldap-ldapsearch-password-prompt-regexp' to
allow overriding the regular expression that recognizes the ldapsearch
command line's password prompt.
** Eshell
+++
-*** The new built-in command `clear' can scroll window contents out of sight.
+*** The new built-in command 'clear' can scroll window contents out of sight.
If provided with an optional non-nil argument, the scrollback contents will be cleared.
+++
*** New buffer syntax '#<buffer-name>', which is equivalent to
'#<buffer buffer-name>'. This shorthand makes interacting with
buffers from eshell more convenient. Custom variable
-`eshell-buffer-shorthand', which has been broken for a while, has been
+'eshell-buffer-shorthand', which has been broken for a while, has been
removed.
+++
*** By default, eshell "visual" program buffers (created by
-`eshell-visual-commands' and similar custom vars) are no longer killed
+'eshell-visual-commands' and similar custom vars) are no longer killed
when their processes die. This fixes issues with short-lived commands
and makes visual programs more useful in general. For example, if
"git log" is a visual command, it will always show the visual command
buffer, even if the "git log" process dies. For the old behavior,
-make the new option `eshell-destroy-buffer-when-process-dies' non-nil.
+make the new option 'eshell-destroy-buffer-when-process-dies' non-nil.
** Browse-url
*** Support for several ancient browsers is now officially obsolete.
+++
-** tar-mode: new `tar-new-entry' command, allowing for new members to
+** tar-mode: new 'tar-new-entry' command, allowing for new members to
be added to the archive.
** Autorevert
Emacs is compiled with file notification support.
---
-*** `auto-revert-use-notify' is set to nil in `global-auto-revert-mode'.
+*** 'auto-revert-use-notify' is set to nil in 'global-auto-revert-mode'.
See <http://debbugs.gnu.org/22814>.
** File Notifications
*** The kqueue library is integrated for *BSD and Mac OS X machines.
+++
-*** The new event `stopped' signals, that a file notification watch is
+*** The new event 'stopped' signals, that a file notification watch is
not active any longer.
+++
-*** The new function `file-notify-valid-p' checks, whether a file
+*** The new function 'file-notify-valid-p' checks, whether a file
notification descriptor still corresponds to an activate watch.
** Dired
+++
-*** The command `dired-do-compress' bound to `Z' now can compress
+*** The command 'dired-do-compress' bound to 'Z' now can compress
directories and decompress zip files.
+++
-*** New command `dired-do-compress-to' bound to `c' can be used to
+*** New command 'dired-do-compress-to' bound to 'c' can be used to
compress many marked files into a single named archive. The
compression command is determined from the new
-`dired-compress-files-alist' variable.
-
-+++
-*** In wdired, when editing files to contain slash characters,
-the resulting directories are automatically created. Whether
-to do this or not is controlled by the
-`wdired-create-parent-directories' variable.
-
-+++
-*** `W' is now bound to `browse-url-of-dired-file', and is useful for
-viewing HTML files and the like.
-
-*** New user interface for the `A' and `Q' commands.
-These keys, now bound to `dired-do-find-regexp' and
-`dired-do-find-regexp-and-replace', work similarly to `xref-find-apropos'
-and `xref-query-replace-in-results': they present the matches
-in the `*xref*' buffer and let you move through the matches. No need
-to use `tags-loop-continue' to resume the search or replace loop. The
-previous commands, `dired-do-search' and
-`dired-do-query-replace-regexp', are still available, but not bound to
-keys; rebind `A' and `Q' to invoke them if you want the old behavior
+'dired-compress-files-alist' variable.
+
++++
+*** New user interface for the 'A' and 'Q' commands.
+These keys, now bound to 'dired-do-find-regexp' and
+'dired-do-find-regexp-and-replace', work similarly to 'xref-find-apropos'
+and 'xref-query-replace-in-results': they present the matches
+in the '*xref*' buffer and let you move through the matches. No need
+to use 'tags-loop-continue' to resume the search or replace loop. The
+previous commands, 'dired-do-search' and
+'dired-do-query-replace-regexp', are still available, but not bound to
+keys; rebind 'A' and 'Q' to invoke them if you want the old behavior
back. We intend to obsolete the old commands in a future release.
** Tabulated List Mode
+++
-*** It is now safe for a mode that derives `tabulated-list-mode' to not
-call `tabulated-list-init-header', in which case it will have no
+*** It is now safe for a mode that derives 'tabulated-list-mode' to not
+call 'tabulated-list-init-header', in which case it will have no
header.
+++
-*** `tabulated-list-print' takes a second optional argument, update,
+*** 'tabulated-list-print' takes a second optional argument, update,
which specifies an alternative printing method which is faster when
few or no entries have changed.
+++
** cl-generic.el provides CLOS-style multiple-dispatch generic functions.
-The main entry points are `cl-defgeneric' and `cl-defmethod'. See the
+The main entry points are 'cl-defgeneric' and 'cl-defmethod'. See the
node "Generic Functions" in the Emacs Lisp manual for more details.
---
let-bind the values stored in an alist.
---
-** `tildify-mode' allows automatic insertion of hard spaces as one
+** 'tildify-mode' allows automatic insertion of hard spaces as one
types the text. Breaking line after a single-character words is
forbidden by Czech and Polish typography (and may be discouraged in
-other languages), so `auto-tildify-mode' makes it easier to create
+other languages), so 'auto-tildify-mode' makes it easier to create
a typographically-correct documents.
---
-** The `seq' library adds sequence manipulation functions and macros
+** The 'seq' library adds sequence manipulation functions and macros
that complement basic functions provided by subr.el. All functions
-are prefixed with `seq-' and work on lists, strings and vectors.
-`pcase' accepts a new Upattern `seq'.
+are prefixed with 'seq-' and work on lists, strings and vectors.
+'pcase' accepts a new Upattern 'seq'.
---
-** The `map' library provides map-manipulation functions that work on
+** The 'map' library provides map-manipulation functions that work on
alists, hash-table and arrays. All functions are prefixed with
-`map-'. `pcase' accepts a new UPattern `map'.
+'map-'. 'pcase' accepts a new UPattern 'map'.
---
-** The `thunk' library provides functions and macros to control the
+** The 'thunk' library provides functions and macros to control the
evaluation of forms.
---
* Incompatible Lisp Changes in Emacs 25.1
---
-** `setq' and `setf' must now be called with an even number of
+** 'setq' and 'setf' must now be called with an even number of
arguments. The earlier behavior of silently supplying a nil to the
last variable when there was an odd number of arguments has been
eliminated.
+++
-** `syntax-begin-function' is declared obsolete.
+** 'syntax-begin-function' is declared obsolete.
Removed font-lock-beginning-of-syntax-function and the SYNTAX-BEGIN
slot in font-lock-defaults.
+++
** The new implementation of Subword mode affects word movement everywhere.
-When Subword mode is turned on, `forward-word', `backward-word', and
+When Subword mode is turned on, 'forward-word', 'backward-word', and
everything that uses them will move by sub-words, effectively
overriding the buffer's syntax table. Lisp programs that shouldn't be
affected by Subword mode should call the new functions
-`forward-word-strictly' and `backward-word-strictly' instead.
+'forward-word-strictly' and 'backward-word-strictly' instead.
+++
-** `package-initialize' now sets `package-enable-at-startup' to nil if
+** 'package-initialize' now sets 'package-enable-at-startup' to nil if
called during startup. Users who call this function in their init
file and still expect it to be run after startup should set
-`package-enable-at-startup' to t after the call to
-`package-initialize'.
+'package-enable-at-startup' to t after the call to
+'package-initialize'.
---
-** `:global' minor mode use `setq-default' rather than `setq'.
-This means that you can't use `make-local-variable' and expect them to
+** ':global' minor mode use 'setq-default' rather than 'setq'.
+This means that you can't use 'make-local-variable' and expect them to
"magically" become buffer-local.
+++
-** `track-mouse' no longer freezes the shape of the mouse pointer.
-The `track-mouse' form no longer refrains from changing the shape of
+** 'track-mouse' no longer freezes the shape of the mouse pointer.
+The 'track-mouse' form no longer refrains from changing the shape of
the mouse pointer for the entire time the body of that form is
-executed. Lisp programs that use `track-mouse' for dragging across
+executed. Lisp programs that use 'track-mouse' for dragging across
large portions of the Emacs display, and want to avoid changes in the
-pointer shape during dragging, should bind the variable `track-mouse'
-to the special value `dragging' in the body of the form.
+pointer shape during dragging, should bind the variable 'track-mouse'
+to the special value 'dragging' in the body of the form.
---
-** The optional `predicate' argument of `lisp-complete-symbol' no longer
+** The optional 'predicate' argument of 'lisp-complete-symbol' no longer
has any effect. (This change was made in Emacs 24.4 but was not
advertised at the time.)
+++
-** `indirect-function' does not signal `void-function' any more.
+** 'indirect-function' does not signal 'void-function' any more.
This is mostly a bug-fix, since this change was missed back in 24.4 when
-symbol-function was changed not to signal `void-function' any more.
+symbol-function was changed not to signal 'void-function' any more.
+++
-*** As a consequence, the second arg of `indirect-function' is now obsolete.
+*** As a consequence, the second arg of 'indirect-function' is now obsolete.
+++
-** Comint, term, and compile do not set the EMACS env var any more.
+** M-x shell and M-x compile no longer set the EMACS environment variable.
+This avoids clashing when other programs use the variable for other purposes.
+Although M-x term still sets EMACS for compatibility with Bash 4.3 and earlier,
+this is deprecated and will be phased out when Bash 4.4 or later takes over.
Use the INSIDE_EMACS environment variable instead.
-** `C-up', `C-down', `C-left' and `C-right' are now defined in term
-mode to send the same escape sequences that xterm does. This makes
-things like forward-word in readline work.
-
----
-** hideshow mode got four key bindings that are analogous to outline
-mode bindings: `C-c @ C-a', `C-c @ C-t', `C-c @ C-d', and `C-c @ C-e.'
-
+++
-** `save-excursion' does not save&restore the mark any more.
-Use `save-mark-and-excursion' if you want the old behavior.
+** 'save-excursion' does not save&restore the mark any more.
+Use 'save-mark-and-excursion' if you want the old behavior.
+++
-** `read-buffer' and `read-buffer-function' can now be called with a 4th
-argument (`predicate').
+** 'read-buffer' and 'read-buffer-function' can now be called with a 4th
+argument ('predicate').
+++
-** `completion-table-dynamic' by default stays in the minibuffer.
+** 'completion-table-dynamic' by default stays in the minibuffer.
The minibuffer will be the current buffer when the function is called.
If you want the old behavior of calling the function in the buffer
from which the minibuffer was entered, use the new argument
-`switch-buffer' to `completion-table-dynamic'.
+'switch-buffer' to 'completion-table-dynamic'.
---
** window-configurations no longer record the buffers' marks.
** deactivate-mark is now buffer-local.
+++
-** `cl-the' now asserts that its argument is of the given type.
+** 'cl-the' now asserts that its argument is of the given type.
+++
-** `process-running-child-p' may now return a numeric process
-group ID instead of `t'.
+** 'process-running-child-p' may now return a numeric process
+group ID instead of 't'.
+++
** Mouse click events on mode line or header line no longer include
in languages like German where downcasing rules depend on grammar.
+++
-** New variable ‘text-quoting-style’ to control how Emacs translates quotes.
-Set it to ‘curve’ for curved single quotes ‘like this’, to ‘straight’
-for straight apostrophes 'like this', and to ‘grave’ for grave accent
-and apostrophe `like this'. The default value nil acts like ‘curve’
-if curved single quotes are displayable, and like ‘grave’ otherwise.
-The new variable affects display of diagnostics and help, but not of info.
+** New variable 'text-quoting-style' to control how Emacs translates quotes.
+Set it to 'curve' for curved single quotes, to 'straight' for straight
+apostrophes, and to 'grave' for grave accent and apostrophe. The
+default value nil acts like 'curve' if curved single quotes are
+displayable, and like 'grave' otherwise. The new variable affects
+display of diagnostics and help, but not of info.
+++
** substitute-command-keys now replaces quotes.
-That is, it converts documentation strings’ quoting style as per the
-value of ‘text-quoting-style’. Doc strings in source code can use
+That is, it converts documentation strings' quoting style as per the
+value of 'text-quoting-style'. Doc strings in source code can use
either curved single quotes or grave accents and apostrophes. As
before, characters preceded by \= are output as-is.
+++
-** Message-issuing functions ‘error’, ‘message’, etc. now convert quotes.
-They use the new ‘format-message’ function instead of plain ‘format’,
-so that they now follow user preference as per ‘text-quoting-style’
+** Message-issuing functions 'error', 'message', etc. now convert quotes.
+They use the new 'format-message' function instead of plain 'format',
+so that they now follow user preference as per 'text-quoting-style'
when processing curved single quotes, grave accents, and apostrophes
in their format argument.
** The character classes [:alpha:] and [:alnum:] in regular expressions
now match multibyte characters using Unicode character properties.
If you want the old behavior where they matched any character with
-word syntax, use `\sw' instead.
+word syntax, use '\sw' instead.
+++
** The character classes [:graph:] and [:print:] in regular expressions
use [:multibyte:] instead.
+++
-** The `diff' command uses the unified format now. To restore the old
-behavior, set `diff-switches' to `-c'.
+** The 'diff' command uses the unified format now. To restore the old
+behavior, set 'diff-switches' to '-c'.
---
-** `grep-template' and `grep-find-template' values don't include the
+** 'grep-template' and 'grep-find-template' values don't include the
--color argument anymore. It's added at the <C> place holder position
dynamically. Any third-party code that changes these templates should
be updated accordingly.
-** The grep/rgrep/lgrep functions will now ask about saving files
-before running. This is controlled by the `grep-save-buffers'
-variable.
-
+++
-** ‘(/ N)’ is now equivalent to ‘(/ 1 N)’ rather than to ‘(/ N 1)’.
+** '(/ N)' is now equivalent to '(/ 1 N)' rather than to '(/ N 1)'.
The new behavior is compatible with Common Lisp and with XEmacs.
This change does not affect Lisp code intended to be portable to
-Emacs 24.2 and earlier, which did not support unary ‘/’.
+Emacs 24.2 and earlier, which did not support unary '/'.
+++
-** The `default-directory' value doesn't have to end slash. To make
-that happen, `unhandled-file-name-directory' now defaults to calling
-`file-name-as-directory'.
+** The 'default-directory' value doesn't have to end slash. To make
+that happen, 'unhandled-file-name-directory' now defaults to calling
+'file-name-as-directory'.
\f
* Lisp Changes in Emacs 25.1
** pcase
+++
-*** New UPatterns `quote', `app'.
+*** New UPatterns 'quote', 'app'.
+++
-*** New UPatterns can be defined with `pcase-defmacro'.
+*** New UPatterns can be defined with 'pcase-defmacro'.
+++
*** New vector QPattern.
---
** syntax-propertize is now automatically called on-demand during forward
-parsing functions like `forward-sexp'.
+parsing functions like 'forward-sexp'.
+++
-** New hooks `prefix-command-echo-keystrokes-functions' and
-`prefix-command-preserve-state-hook' allow the definition of prefix
-commands other than the predefined `C-u'.
+** New hooks 'prefix-command-echo-keystrokes-functions' and
+'prefix-command-preserve-state-hook' allow the definition of prefix
+commands other than the predefined 'C-u'.
+++
-** New functions `filepos-to-bufferpos' and `bufferpos-to-filepos'.
+** New functions 'filepos-to-bufferpos' and 'bufferpos-to-filepos'.
These allow conversion between buffer positions and the corresponding
file byte offsets, given the file's encoding.
+++
-** The default value of `load-read-function' is now `read'.
-Previously, the default value of `nil' implied using `read'.
+** The default value of 'load-read-function' is now 'read'.
+Previously, the default value of 'nil' implied using 'read'.
+++
-** New hook `pre-redisplay-functions'.
-It is a bit easier to use than `pre-redisplay-function'.
+** New hook 'pre-redisplay-functions'.
+It is a bit easier to use than 'pre-redisplay-function'.
+++
-** The second arg of `looking-back' should always be provided explicitly.
+** The second arg of 'looking-back' should always be provided explicitly.
Previously, it was an optional argument, now it's mandatory.
+++
-** Text properties `intangible', `point-entered', and `point-left' are obsolete.
-Replaced by properties `cursor-intangible' and `cursor-sensor-functions',
-implemented by the new `cursor-intangible-mode' and
-`cursor-sensor-mode' minor modes.
+** Text properties 'intangible', 'point-entered', and 'point-left' are obsolete.
+Replaced by properties 'cursor-intangible' and 'cursor-sensor-functions',
+implemented by the new 'cursor-intangible-mode' and
+'cursor-sensor-mode' minor modes.
+++
-** `inhibit-point-motion-hooks' now defaults to `t' and is obsolete.
-Use the new minor modes `cursor-intangible-mode' and
-`cursor-sensor-mode' instead.
+** 'inhibit-point-motion-hooks' now defaults to 't' and is obsolete.
+Use the new minor modes 'cursor-intangible-mode' and
+'cursor-sensor-mode' instead.
+++
-** New process type `pipe', which can be used in combination with the
-`:stderr' keyword of make-process to handle standard error output
+** New process type 'pipe', which can be used in combination with the
+':stderr' keyword of make-process to handle standard error output
of subprocess.
+++
-** New function `make-process' provides an alternative interface to
-`start-process'. It allows programs to set process parameters such as
+** New function 'make-process' provides an alternative interface to
+'start-process'. It allows programs to set process parameters such as
process filter, sentinel, etc., through keyword arguments (similar to
-`make-network-process').
+'make-network-process').
+++
-** A new function `directory-files-recursively' returns all matching
+** A new function 'directory-files-recursively' returns all matching
files (recursively) under a directory.
+++
-** New variable `inhibit-message', when bound to non-nil, inhibits
-`message' and related functions from displaying messages in the echo
+** New variable 'inhibit-message', when bound to non-nil, inhibits
+'message' and related functions from displaying messages in the echo
area. The output is still logged to the *Messages* buffer.
+++
-** A new text property `inhibit-read-only' can be used in read-only
+** A new text property 'inhibit-read-only' can be used in read-only
buffers to allow certain parts of the text to be writable.
+++
-** A new variable `comment-end-can-be-escaped' is useful in languages
+** A new variable 'comment-end-can-be-escaped' is useful in languages
such as C and C++ where line comments with escaped newlines are
continued to the next line.
+++
-** New macro `define-advice'.
+** New macro 'define-advice'.
+++
** Emacs Lisp now supports generators.
It should be placed right where the docstring would be, and FORM is then
evaluated (and should return a string) when the closure is built.
----
-** The new command `fortune-message' has been added, which displays
-fortunes in the echo area.
-
+++
** define-inline provides a new way to define inlinable functions.
+++
-** New function `macroexpand-1' to perform a single step of macro expansion.
+** New function 'macroexpand-1' to perform a single step of macro expansion.
+++
** Some "x-*" functions were obsoleted and/or renamed:
*** x-set-selection is renamed to gui-set-selection
+++
-** New function `string-greaterp', which return the opposite result of
-`string-lessp'.
+** New function 'string-greaterp', which return the opposite result of
+'string-lessp'.
+++
-** The new functions `string-collate-lessp' and `string-collate-equalp'
+** The new functions 'string-collate-lessp' and 'string-collate-equalp'
preserve the collation order as defined by the system's locale(1)
environment. For the time being this is implemented for modern POSIX
systems and for MS-Windows, for other systems they fall back to their
-counterparts `string-lessp' and `string-equal'.
-
-+++
-** The new function `string-version-lessp' compares strings by
-interpreting consecutive runs of numerical characters as numbers, and
-compares their numerical values. According to this predicate,
-"foo2.png" is smaller than "foo12.png".
+counterparts 'string-lessp' and 'string-equal'.
---
-*** The ls-lisp package uses `string-collate-lessp' to sort file names.
+*** The ls-lisp package uses 'string-collate-lessp' to sort file names.
The effect is that, on systems that use ls-lisp for Dired, the default
sort order of the files in Dired is now different from what it was in
previous versions of Emacs. In particular, the file names are sorted
ignored. For example, files whose name begin with a period will no
longer appear near the beginning of the directory listing. If you
want the old, locale-independent sorting, customize the new option
-`ls-lisp-use-string-collate' to the nil value.
+'ls-lisp-use-string-collate' to the nil value.
+++
-*** The MS-Windows specific variable `w32-collate-ignore-punctuation',
+*** The MS-Windows specific variable 'w32-collate-ignore-punctuation',
if set to a non-nil value, causes the above 2 functions to ignore
symbol and punctuation characters when collating strings. This
emulates the behavior of modern Posix platforms when the locale's
MS-Windows doesn't support UTF-8 as codeset in its locales.
+++
-** New function `alist-get', which is also a valid place (aka lvalue).
+** New function 'alist-get', which is also a valid place (aka lvalue).
+++
-** New function `funcall-interactively', which works like `funcall'
-but makes `called-interactively-p' treat the function as (you guessed it)
+** New function 'funcall-interactively', which works like 'funcall'
+but makes 'called-interactively-p' treat the function as (you guessed it)
called interactively.
+++
-** New function `function-put' to use instead of `put' for function properties.
+** New function 'function-put' to use instead of 'put' for function properties.
+++
-** The new function `bidi-find-overridden-directionality' allows you to
+** The new function 'bidi-find-overridden-directionality' allows you to
find characters whose directionality was, perhaps maliciously,
overridden by directional override control characters. Lisp programs
can use this to detect potential phishing of URLs and other links that
exploits bidirectional display reordering.
+++
-** The new function `buffer-substring-with-bidi-context' allows you to
+** The new function 'buffer-substring-with-bidi-context' allows you to
copy a portion of a buffer into a different location while preserving
the visual appearance both of the copied text and the text at
destination, even when the copied text includes mixed bidirectional
text and directional control characters.
+++
-** New properties that can be specified with `declare':
+** New properties that can be specified with 'declare':
*** (interactive-only INSTEAD), says to use INSTEAD for non-interactive use.
*** (pure VAL), if VAL is non-nil, indicates the function is pure.
*** (side-effect-free VAL), if VAL is non-nil, indicates the function does not
have side effects.
+++
-** New macro `with-file-modes', for evaluating expressions with default file
+** New macro 'with-file-modes', for evaluating expressions with default file
permissions set to temporary values (e.g., for creating private files).
+++
-** You can access the slots of structures using `cl-struct-slot-value'.
+** You can access the slots of structures using 'cl-struct-slot-value'.
+++
-** Function `sort' can deal with vectors.
+** Function 'sort' can deal with vectors.
---
-** Function `system-name' now returns an updated value if the current
+** Function 'system-name' now returns an updated value if the current
system's name has changed or if the Emacs process has changed systems,
and to avoid long waits it no longer consults DNS to canonicalize the
-name. The variable `system-name' is now obsolete.
+name. The variable 'system-name' is now obsolete.
+++
-** Function `write-region' no longer outputs "Wrote FILE" in batch mode.
+** Function 'write-region' no longer outputs "Wrote FILE" in batch mode.
---
-** If `pwd' is called with a prefix argument, insert the current default
+** If 'pwd' is called with a prefix argument, insert the current default
directory at point.
+++
** New functions return extended information about fonts and faces.
+++
-*** The function `font-info' now returns more details about a font.
+*** The function 'font-info' now returns more details about a font.
In particular, it now returns the average width of the font's
characters, which can be used for geometry-related calculations.
+++
-*** A new function `default-font-width' returns the average width of a
+*** A new function 'default-font-width' returns the average width of a
character in the current buffer's default font. If the default face
-is remapped (see `face-remapping-alist'), the value for the remapped
+is remapped (see 'face-remapping-alist'), the value for the remapped
face is returned. This function complements the existing function
-`default-font-height'.
+'default-font-height'.
+++
-*** New functions `window-font-height' and `window-font-width' return
+*** New functions 'window-font-height' and 'window-font-width' return
the height and average width of characters in a specified face and
-window. If FACE is remapped (see `face-remapping-alist'), the
+window. If FACE is remapped (see 'face-remapping-alist'), the
function returns the information for the remapped face.
+++
-*** A new function `window-max-chars-per-line' returns the maximal
+*** A new function 'window-max-chars-per-line' returns the maximal
number of characters that can be displayed on one line. If a face
and/or window are provided, these values are used for the
-calculation. This function is different from `window-body-width' in
+calculation. This function is different from 'window-body-width' in
that it accounts for (i) continuation glyphs, (ii) the size of the
font, and (iii) the specified window.
---
** New utilities in subr-x.el:
-*** New macros `if-let' and `when-let' allow defining bindings and to
+*** New macros 'if-let' and 'when-let' allow defining bindings and to
execute code depending whether all values are true.
-*** New macros `thread-first' and `thread-last' allow threading a form
+*** New macros 'thread-first' and 'thread-last' allow threading a form
as the first or last argument of subsequent forms.
+++
** Documentation strings now support quoting with curved single quotes
-‘like-this’ in addition to the old style with grave accent and
-apostrophe `like-this'. The new style looks better on today's displays.
-In the new Electric Quote mode, you can enter curved single quotes
-into documentation by typing ` and '. Outside Electric Quote mode,
-you can enter them by typing ‘C-x 8 [’ and ‘C-x 8 ]’, or (if your Alt
-key works) by typing ‘A-[’ and ‘A-]’. As described above under
-‘text-quoting-style’, the user can specify how to display doc string
+in addition to the old style with grave accent and apostrophe. The
+new style looks better on today's displays. In the new Electric Quote
+mode, you can enter curved single quotes into documentation by typing
+grave accent and apostrophe. Outside Electric Quote mode, you can
+enter them by typing 'C-x 8 [' and 'C-x 8 ]', or (if your Alt key
+works) by typing 'A-[' and 'A-]'. As described above under
+'text-quoting-style', the user can specify how to display doc string
quotes.
+++
-** New function ‘format-message’ is like ‘format’ and also converts
+** New function 'format-message' is like 'format' and also converts
curved single quotes, grave accents and apostrophes as per
-‘text-quoting-style’.
+'text-quoting-style'.
+++
** show-help-function's arg is converted via substitute-command-keys
*** Time conversion functions now accept an optional ZONE argument
that specifies the time zone rules for conversion. ZONE is omitted or
-nil for Emacs local time, t for Universal Time, ‘wall’ for system wall
-clock time, or a string as in ‘set-time-zone-rule’ for a time zone
-rule. The affected functions are ‘current-time-string’,
-‘current-time-zone’, ‘decode-time’, and ‘format-time-string’. The
-function ‘encode-time’, which already accepted a simple time zone rule
-argument, has been extended to accept all the new forms.
+nil for Emacs local time, t for Universal Time, 'wall' for system wall
+clock time, or a string as in the TZ environment variable. The
+affected functions are 'current-time-string', 'current-time-zone',
+'decode-time', and 'format-time-string'. The function 'encode-time',
+which already accepted a simple time zone rule argument, has been
+extended to accept all the new forms.
+
+*** Incompatible change in the third argument of 'format-time-string'.
+Previously, any non-nil argument was interpreted as specifying Universal Time.
+This is no longer true; packages that want Universal Time should pass t
+as the third argument.
*** Time-related functions now consistently accept numbers
(representing seconds since the epoch) and nil (representing the
current time) as well as the usual list-of-integer representation.
-Affected functions include `current-time-string', `current-time-zone',
-`decode-time', `float-time', `format-time-string', `seconds-to-time',
-`time-add', `time-less-p', `time-subtract', `time-to-day-in-year',
-`time-to-days', and `time-to-seconds'.
+Affected functions include 'current-time-string', 'current-time-zone',
+'decode-time', 'float-time', 'format-time-string', 'seconds-to-time',
+'time-add', 'time-less-p', 'time-subtract', 'time-to-day-in-year',
+'time-to-days', and 'time-to-seconds'.
-*** The `encode-time-value' and `with-decoded-time-value' macros have
+*** The 'encode-time-value' and 'with-decoded-time-value' macros have
been obsoleted.
-*** `calendar-next-time-zone-transition', `time-add', and
-`time-subtract' no longer return time values in the obsolete and
+*** 'calendar-next-time-zone-transition', 'time-add', and
+'time-subtract' no longer return time values in the obsolete and
undocumented integer-pair format. Instead, they return a list of two
integers.
+++
-** New function `set-binary-mode' allows switching a standard stream
+** New function 'set-binary-mode' allows switching a standard stream
of the Emacs process to binary I/O mode.
+++
-** The new function `directory-name-p' can be used to check whether a file
-name (as returned from, for instance, `file-name-all-completions') is
+** The new function 'directory-name-p' can be used to check whether a file
+name (as returned from, for instance, 'file-name-all-completions') is
a directory file name. It returns non-nil if the last character in
the name is a directory separator character (forward slash on GNU and
Unix systems, forward- or backslash on MS-Windows and MS-DOS).
+++
** Standard output and error streams now transliterate characters via
standard-display-table, and encode output using locale-coding-system.
-To force a specific encoding, bind `coding-system-for-write' to the
-coding-system of your choice when invoking functions like `prin1' and
-`message'.
+To force a specific encoding, bind 'coding-system-for-write' to the
+coding-system of your choice when invoking functions like 'prin1' and
+'message'.
+++
-** New var `truncate-string-ellipsis' to choose how to indicate truncation.
+** New var 'truncate-string-ellipsis' to choose how to indicate truncation.
+++
-** New possible value for `system-type': `nacl'.
+** New possible value for 'system-type': 'nacl'.
This is used by Google's Native Client (NaCl).
----
-** `read-color' will now display the color names using the color itself
-as the background color.
-
----
-** There is now a new variable `flyspell-sort-corrections-function'
-that allows changing the way corrections are sorted.
-
** Miscellaneous name change
---
For consistency with the usual Emacs spelling, the Lisp variable
-`hfy-optimisations' has been renamed to `hfy-optimizations'.
+'hfy-optimisations' has been renamed to 'hfy-optimizations'.
The old name should still work, as an obsolescent alias.
** Changes in Frame- and Window- Handling
provide toolkit scroll bars, namely Gtk+, Lucid, Motif and Windows.
Horizontal scroll bars are turned off by default.
-**** New function `horizontal-scroll-bars-available-p' telling whether
+**** New function 'horizontal-scroll-bars-available-p' telling whether
horizontal scroll bars are available on the underlying system.
-**** New mode `horizontal-scroll-bar-mode' to toggle horizontal scroll
+**** New mode 'horizontal-scroll-bar-mode' to toggle horizontal scroll
bars on all existing and future frames.
-**** New function `toggle-horizontal-scroll-bar' to toggle horizontal
+**** New function 'toggle-horizontal-scroll-bar' to toggle horizontal
scroll bars on the selected frame.
-**** New frame parameters `horizontal-scroll-bars' and
- `scroll-bar-height' to set horizontal scroll bars and their height
- for individual frames and in `default-frame-alist'.
+**** New frame parameters 'horizontal-scroll-bars' and
+ 'scroll-bar-height' to set horizontal scroll bars and their height
+ for individual frames and in 'default-frame-alist'.
-**** New functions `frame-scroll-bar-height' and
- `window-scroll-bar-height' return the height of horizontal scroll
+**** New functions 'frame-scroll-bar-height' and
+ 'window-scroll-bar-height' return the height of horizontal scroll
bars on a specific frame or window.
-**** `set-window-scroll-bars' now accepts five parameters where the last
+**** 'set-window-scroll-bars' now accepts five parameters where the last
two specify height and type of the window's horizontal scroll bar.
-**** `window-scroll-bars' now returns type and sizes of horizontal scroll
+**** 'window-scroll-bars' now returns type and sizes of horizontal scroll
bars too.
-**** New buffer-local variables `horizontal-scroll-bar' and
- `scroll-bar-height'.
+**** New buffer-local variables 'horizontal-scroll-bar' and
+ 'scroll-bar-height'.
+++
-*** New functions `frame-geometry' and `frame-edges' give access to a
+*** New functions 'frame-geometry' and 'frame-edges' give access to a
frame's geometry.
+++
-*** New functions `mouse-absolute-pixel-position' and
-`set-mouse-absolute-pixel-position' get/set screen coordinates of the
+*** New functions 'mouse-absolute-pixel-position' and
+'set-mouse-absolute-pixel-position' get/set screen coordinates of the
mouse cursor.
+++
-*** The function `window-edges' now accepts three additional arguments to
+*** The function 'window-edges' now accepts three additional arguments to
retrieve body, absolute and pixel edges of the window.
+++
-*** The functions `window-inside-edges', `window-inside-pixel-edges' and
-`window-inside-absolute-pixel-edges' have been renamed to respectively
-`window-body-edges', `window-body-pixel-edges' and
-`window-absolute-body-pixel-edges'. The old names are kept as aliases.
+*** The functions 'window-inside-edges', 'window-inside-pixel-edges' and
+'window-inside-absolute-pixel-edges' have been renamed to respectively
+'window-body-edges', 'window-body-pixel-edges' and
+'window-absolute-body-pixel-edges'. The old names are kept as aliases.
+++
-*** New function `window-absolute-pixel-position' to get the screen
+*** New function 'window-absolute-pixel-position' to get the screen
coordinates of a visible buffer position.
+++
scroll bars. In particular, maximized and fullscreen frames are
conceptually never resized if such settings change. For fullheight and
fullwidth frames, the behavior may depend on the toolkit used.
-**** New option `frame-inhibit-implied-resize' if non-nil, means that
+**** New option 'frame-inhibit-implied-resize' if non-nil, means that
setting default font, menu bar, fringe width, or scroll bars of a
specific frame does not resize that frame in order to preserve the
number of columns or lines it displays.
+++
-*** New function `window-preserve-size' allows you to preserve the size of
-a window without "fixing" it. It's supported by `fit-window-to-buffer',
-`temp-buffer-resize-mode' and `display-buffer'.
+*** New function 'window-preserve-size' allows you to preserve the size of
+a window without "fixing" it. It's supported by 'fit-window-to-buffer',
+'temp-buffer-resize-mode' and 'display-buffer'.
+++
-*** New `display-buffer' action function `display-buffer-use-some-frame'.
+*** New 'display-buffer' action function 'display-buffer-use-some-frame'.
This displays the buffer in an existing frame other than the current
frame, and allows the caller to specify a frame predicate to exclude
frames.
+++
-*** New minor mode `window-divider-mode' and options
-`window-divider-default-places', `window-divider-default-bottom-width'
-and `window-divider-default-right-width'.
+*** New minor mode 'window-divider-mode' and options
+'window-divider-default-places', 'window-divider-default-bottom-width'
+and 'window-divider-default-right-width'.
+
++++
+*** The window displaying the '*Completions*' buffer with minibuffer
+completion candidates is now shown at the bottom of the selected
+frame. The size of that window is always as large as required to
+display all the candidates, except when limited by the minimum size
+of the other windows on that frame; those other windows are resized
+to provide space for the '*Completions*' display. The Emacs manual
+describes how to customize 'display-buffer-alist' to get back the old
+behavior, see the node "Temporary Displays" there.
---
** Tearoff menus and detachable toolbars for Gtk+ have been removed.
+++
*** etags no longer qualifies class members by default.
-By default, `etags' will not qualify class members for Perl and C-like
+By default, 'etags' will not qualify class members for Perl and C-like
object-oriented languages with their class names and namespaces, and
will remove qualifications used explicitly in the code from the tag
names it puts in TAGS files. This is so the etags.el back-end for
-`xref-find-definitions' is more accurate and produces less false
+'xref-find-definitions' is more accurate and produces less false
positives.
Use --class-qualify (-Q) if you want the old default behavior of
qualifying class members in C++, Java, Objective C, and Perl. Note
-that using -Q might make some class members become "unknown" to `M-.'
-(`xref-find-definitions'); if so, you can use `C-u M-.' to specify the
+that using -Q might make some class members become "unknown" to 'M-.'
+('xref-find-definitions'); if so, you can use 'C-u M-.' to specify the
qualified names by hand.
+++
This includes the makefile.w32-in files in various subdirectories, and
the support files. The file nt/configure.bat now just tells the user
to use the procedure described in nt/INSTALL, by running the Posix
-`configure' script in the top-level directory.
+'configure' script in the top-level directory.
---
** Building Emacs for MS-Windows requires at least Windows XP
** OS X on PowerPC is no longer supported.
---
-** New variable `ns-use-fullscreen-animation' controls animation for
+** New variable 'ns-use-fullscreen-animation' controls animation for
non-native NS fullscreen. The default is nil. Set to t to enable
animation when entering and leaving fullscreen. For native OSX fullscreen
this has no effect.
+** On the OS X Cocoa ("Nextstep") port, multicolor font (such as color
+emoji) display is disabled. This feature was accidentally added when
+Emacs 24.4 included the new Core Text based font backend code that was
+originally implemented for a non-mainline port. This will be enabled
+again once it is also implemented in Emacs on free operating systems.
+
---
** The new function 'w32-application-type' returns the type of an
MS-Windows application given the name of its executable program file.
-** New variable `w32-pipe-buffer-size'.
+** New variable 'w32-pipe-buffer-size'.
It can be used to tune the size of the buffer of pipes created for
communicating with subprocesses, when the program run by a subprocess
exhibits unusual buffering behavior. Default is zero, which lets the
\f
Local variables:
-coding: utf-8
+coding: us-ascii
mode: outline
paragraph-separate: "[ \f]*$"
end: