GNU Emacs NEWS -- history of user-visible changes.
-Copyright (C) 2014 Free Software Foundation, Inc.
+Copyright (C) 2014-2015 Free Software Foundation, Inc.
See the end of the file for license conditions.
Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
** The configure option `--with-pkg-config-prog' has been removed.
Use './configure PKG_CONFIG=/full/name/of/pkg-config' if you need to.
-** The configure option '--enable-silent-rules' and the command
-'make V=0' now do a better job of suppressing chatter.
+** The configure option '--enable-silent-rules' is now the default,
+and silent rules are now quieter. To get the old behavior where
+'make' chatters a lot, configure with '--disable-silent-rules' or
+build with 'make V=1'.
+
+---
+** 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.
\f
* Startup Changes in Emacs 25.1
\f
* Changes in Emacs 25.1
+** `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.
+
+** New function `custom-prompt-customize-unsaved-options' checks for
+unsaved customizations and prompts user to customize (if found).
+
++++
** 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.
** 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.
systems and for MS-Windows, for other systems they fall back to their
counterparts `string-lessp' and `string-equal'.
-+++
-** The new function `bidi-find-overridden-directionality' allows 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 ls-lisp package uses `string-collate-lessp' to sort file names.
If you want the old, locale-independent sorting, customize the new
option `ls-lisp-use-string-collate' to a nil value.
codeset is "UTF-8" (as in "en_US.UTF-8"). This is needed because
MS-Windows doesn't support UTF-8 as codeset in its locales.
++++
+** The new function `bidi-find-overridden-directionality' allows 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 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 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.
-*** 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 function `directory-files-recursively' returns all matching
+files (recursively) under a directory.
+
+** The new `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 forward slash.
+
++++
+** 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.
+
+** 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.
+
\f
* Editing Changes in Emacs 25.1
+** Unicode names entered via C-x 8 RET now use substring completion by default.
+
** New minor mode global-eldoc-mode is enabled by default.
** Emacs now supports "bracketed paste mode" when running on a terminal
and the Bidirectional Parentheses Algorithm (BPA) specified by these
Unicode standards.
+** You can access `mouse-buffer-menu' (C-down-mouse-1) using C-f10.
+
\f
* Changes in Specialized Modes and Packages in Emacs 25.1
+** Shell
+
+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 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 `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.
+*** The <class> variables are declared obsolete.
+*** The <initarg> variables are declared obsolete.
** 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
** eww
++++
*** 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.
+---
*** You can now use several eww buffers in parallel by renaming eww
buffers you want to keep separate.
++++
*** Partial state of the eww buffers (the URIs and the titles of the
pages visited) is now preserved in the desktop file.
++++
*** `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 net, but just use the local copy of the HTML.
+
++++
*** The DOM shr and eww uses has been changed to the general Emacs
xml.el/libxml2 DOM, and a new package dom.el has been added to
interact with this DOM. See the Emacs Lisp manual for interface
details.
++++
+*** `mailcap-mime-data' is now consulted when displaying PDF files.
+
++++
+*** The new `S' command will list all eww buffers, and allow managing
+them.
+
+---
+*** https pages with valid certificates have headers marked in green, while
+invalid certificates are marked in red.
+
** Message mode
*** text/html messages that contain inline image parts will be
** cl-lib
*** New functions cl-fresh-line, cl-digit-char-p and cl-parse-integer.
+** seq
+*** New seq library:
+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.
+
** Calendar and diary
+++
---
** `Info-fontify-maximum-menu-size' can be t for no limit.
++++
+** `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.
+
---
** ntlm.el has support for NTLM2.
** 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).
+** TLS
+---
+*** Fatal TLS errors are now silent by default.
+
** URL
*** The URL package accepts now the protocols "ssh", "scp" and "rsync".
to specify that we're running in a noninteractive context, and that
we should not be queried about things like TLS certificate validity.
+*** 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).
+
** Tramp
*** New connection method "nc", which allows to access dumb busyboxes.
the color range from `vc-annotate-color-map' is applied to the
background or to the foreground.
+*** `compare-windows' now compares text with the most recently used window
+instead of the next window. The new option `compare-windows-get-window-function'
+allows to customize this.
+
+*** Two new faces `compare-windows-removed' and `compare-windows-added'
+replace the obsolete face `compare-windows'.
+
** Calculator: decimal display mode uses "," groups, so it's more
fitting for use in money calculations; factorial works with
non-integer inputs.
`tildify-ignored-environments-alist' variables (as well as a few
helper functions) obsolete.
+** xref
+The new package provides generic framework and new commands to find
+and move to definitions, as well as pop back to the original location.
+
+*** New key bindings
+`xref-find-definitions' replaces `find-tag' and provides an interface
+to pick one destination among several. Hence, `tags-loop-continue' is
+unbound. `xref-pop-marker-stack' replaces `pop-tag-mark', but uses an
+easier binding, which is now unoccupied (`M-,').
+`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'.
+
+*** 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 to mutate it instead.
+
+** etags
+As a result of the above, these commands are now obsolete:
+`find-tag-other-window', `find-tag-other-frame', `find-tag-regexp',
+`tags-apropos' and `tags-loop-continue'.
+
** Obsolete packages
---
\f
* New Modes and Packages in Emacs 25.1
+** cl-generic.el provides CLOS-style multiple-dispatch generic functions.
+
** scss-mode (a minor variant of css-mode)
+
+** let-alist is a new macro (and a package) that allows one to easily
+let-bind the values stored in an alist.
+
+** `tildify-mode' allows to automatically insert 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
+a typographically-correct documents.
\f
* Incompatible Lisp Changes in Emacs 25.1
+** completion-table-dynamic stays in the minibuffer.
+If you want the old behavior of calling the function in the buffer
+from which the minibuffer was entered, call it with the new argument
+`switch-buffer'.
+
** window-configurations no longer record the buffers's marks.
** inhibit-modification-hooks now also inhibits lock-file checks, as well as
** Function `sort' can deal with vectors.
+** 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.
+
++++
+** Function `write-region' no longer outputs "Wrote FILE" in batch mode.
+
---
** New utilities in subr-x.el:
*** New macros `if-let' and `when-let' allow defining bindings and to
undocumented integer-pair format. Instead, they return a list of two
integers.
++++
+** New function `set-binary-mode' allows to switch a standard stream
+of the Emacs process to binary I/O mode.
+
\f
* Changes in Frames and Windows Code in Emacs 25.1
`scroll-bar-height'.
+++
-** The height of a frame's menu and tool bar are no more counted in the
+** The height of a frame's menu and tool bar are no longer counted in the
frame's text height. This means that the text height stands only for
the height of the frame's root window plus that of the echo area (if
present). This was already the behavior for frames with external tool
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 to preserve the size of
+windows without "fixing" it. It's supported by `fit-window-to-buffer',
+`temp-buffer-resize-mode' and `display-buffer'.
+
** Tearoff menus and detachable toolbars for Gtk+ has been removed.
Those features have been deprecated in Gtk+ for a long time.