This is not a new feature; only the configure flag is new.
---
-** New translation of the Emacs Tutorial in Hebrew is available
+** New translation of the Emacs Tutorial in Hebrew is available.
Type `C-u C-h t' to choose it in case your language setup doesn't
automatically select it.
** New command line option `--no-site-lisp' removes site-lisp directories
from load-path. -Q now implies this.
+** On Windows, Emacs now warns when the obsolete _emacs init file is used,
+and also when HOME is set to C:\ by default.
+
\f
* Changes in Emacs 24.1
*** If emacsclient shuts down as a result of Emacs signalling an
error, its exit status is 1.
-** Completion can cycle, depending on completion-cycle-threshold.
+** Completion
+*** Many packages have been changed to use completion-at-point rather than
+their own completion code.
+
+*** Completion in a non-minibuffer now tries to detect the end of completion
+and pops down the *Completions* buffer accordingly.
+
+*** Completion can cycle, depending on completion-cycle-threshold.
+
+*** New completion style `substring'.
+
+*** Completion style can be set per-category `completion-category-overrides'.
+
+*** Completion of buffers now uses substring completion by default.
+
+*** `completing-read' can be customized using the new variable
+`completing-read-function'.
** auto-mode-case-fold is now enabled by default.
+** Internationalization changes
+
+++
-** Emacs now supports display and editing of bidirectional text.
+*** Emacs now supports display and editing of bidirectional text.
See the node "Bidirectional Editing" in the Emacs Manual for some
initial documentation.
`display' text properties, do not yet work correctly when
bidirectional text is reordered for display.
++++
+*** Enhanced support for characters that have no glyphs in available fonts.
+If a character has no glyphs in any of the available fonts, Emacs by
+default will display it either as a hexadecimal code in a box or as a
+thin 1-pixel space. In addition to these two methods, Emacs can
+display these characters as empty box, as an acronym, or not display
+them at all. To change how these characters are displayed, customize
+the variable `glyphless-char-display-control'.
+
+On character terminals these methods are used for characters that
+cannot be encoded by the `terminal-coding-system'.
+
+*** There are two new input methods for Persian/Farsi: farsi and farsi-translit.
+
** GTK scroll-bars are now placed on the right by default.
Use `set-scroll-bar-mode' to change this.
** ImageMagick support.
It is now possible to use the ImageMagick library to load many new
image formats in Emacs. By default, Emacs links with the ImageMagick
-libraries if they are present at build time. To disable this, use
-the configure option `--without-imagemagick'.
+libraries if they are present at build time. This needs ImageMagick
+6.2.8 or newer (versions newer than 6.0.7 _may_ work but have not been
+tested). To disable ImageMagick support, use the configure option
+`--without-imagemagick'.
The new function `imagemagick-types' returns a list of image file
extensions that your installation of ImageMagick supports. The
with Xft. To change font, use the X resource font, for example:
Emacs.pane.menubar.font: Courier-12
-+++
-** Enhanced support for characters that have no glyphs in available fonts
-If a character has no glyphs in any of the available fonts, Emacs by
-default will display it either as a hexadecimal code in a box or as a
-thin 1-pixel space. In addition to these two methods, Emacs can
-display these characters as empty box, as an acronym, or not display
-them at all. To change how these characters are displayed, customize
-the variable `glyphless-char-display-control'.
-
-On character terminals these methods are used for characters that
-cannot be encoded by the `terminal-coding-system'.
-
** On graphical displays, the mode-line no longer ends in dashes.
+Also, the first dash (which does not indicate anything) is just
+displayed as a space.
+
+** On Nextstep/OSX, the menu bar can be hidden by customizing
+ns-auto-hide-menu-bar.
** Basic SELinux support has been added.
This requires Emacs to be linked with libselinux at build time.
consider if it is still appropriate to add it in the noninteractive case.
** New scrolling commands `scroll-up-command' and `scroll-down-command'
-(bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
-of buffer at first key-press (instead moves to top/bottom of buffer)
+(bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
+of buffer at first key-press (instead move to top/bottom of buffer)
when a new variable `scroll-error-top-bottom' is non-nil.
** New scrolling commands `scroll-up-line' and `scroll-down-line'
** New property `scroll-command' should be set on a command's symbol to
define it as a scroll command affected by `scroll-preserve-screen-position'.
++++
+** If you customize `scroll-conservatively' to a value greater than 100,
+Emacs will never recenter point in the window when it scrolls due to
+cursor motion commands or commands that move point (e.f., `M-g M-g').
+Previously, you needed to use `most-positive-fixnum' as the value of
+`scroll-conservatively' to achieve the same effect.
+
+---
+** ``Aggressive'' scrolling now honors the scroll margins.
+If you customize `scroll-up-aggressively' or
+`scroll-down-aggressively' and move point off the window, Emacs now
+scrolls the window so as to avoid positioning point inside the scroll
+margin.
+
** Trash changes
*** `delete-by-moving-to-trash' now only affects commands that specify
** The user option `remote-file-name-inhibit-cache' controls whether
the remote file-name cache is used for read access.
++++
+** The use of a "mode: minor" specification in a file local variables section
+to enable a minor-mode is deprecated. Instead, use "eval: (minor-mode)".
+
** The standalone programs lib-src/digest-doc and sorted-doc have been
replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
+---
+** The standalone program `fakemail' has been removed.
+If you need it, feedmail.el ought to provide a superset of the functionality.
+
** The variable `focus-follows-mouse' now always defaults to nil.
+** Function `sha1' is now implemented in C for speed.
+The elisp implementation sha1.el is removed. Feature sha1 is provided
+by default.
+
\f
* Editing Changes in Emacs 24.1
*** C-y in Isearch is now bound to isearch-yank-kill, instead of
isearch-yank-line.
+---
+*** M-y in Isearch is now bound to isearch-yank-pop, instead of
+isearch-yank-kill.
+
+++
*** M-s C-e in Isearch is now bound to isearch-yank-line.
*** To return to the previous behavior, do the following:
+**** Change `select-active-regions' to nil.
**** Change `mouse-drag-copy-region' to t.
**** Change `x-select-enable-primary' to t (on X only).
**** Change `x-select-enable-clipboard' to nil.
*** Support for X cut buffers has been removed.
+*** Support for X clipboard managers has been added.
+
** New command `rectangle-number-lines', bound to `C-x r N', numbers
the lines in the current rectangle. With an prefix argument, this
prompts for a number to count from and for a format string.
+** The command shell prompts for the shell path name, when the default
+directory is a remote file name and neither environment variable
+$ESHELL nor variable `explicit-shell-file-name' is set.
+
\f
* Changes in Specialized Modes and Packages in Emacs 24.1
-** The compile.el mode can be used without font-lock-mode.
+** comint and modes derived from it use the generic completion code.
+
+** Compilation mode
+
+*** Compilation mode can be used without font-lock-mode.
`compilation-parse-errors-function' is now obsolete.
+*** `compilation-filter-start' is let-bound to the start of the text
+inserted by the compilation filter function, when calling
+compilation-filter-hook.
+
** The Landmark game is now invoked with `landmark', not `lm'.
** Prolog mode has been completely revamped, with lots of additional
** Archive Mode has basic support to browse 7z archives.
** browse-url has gotten a new variable that is used for mailto: URLs,
- `browse-url-mailto-function', which defaults to `browse-url-mail'.
+`browse-url-mailto-function', which defaults to `browse-url-mail'.
+
+** `url-queue-retrieve' downloads web pages asynchronously, but allow
+controlling the degree of parallelism.
** Directory local variables can apply to file-less buffers, in certain modes
(eg dired, vc-dir, log-edit). For example, adding
** Calendar, Diary, and Appt
++++
+*** Diary entries can contain non-printing `comments'.
+See the variable `diary-comment-start'.
+
++++
+*** Appointments can specify their individual warning times.
+See the variable `appt-warning-time-regexp'.
+
++++
*** New function `diary-hebrew-birthday'.
+---
+*** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
+may no longer be nil, but must all be strings.
+
---
*** The obsolete (since Emacs 22.1) method of enabling the appt package
by adding appt-make-list to diary-hook has been removed. Use appt-activate.
*** The following access methods are discontinued: "ssh1_old",
"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
+*** The option `ange-ftp-binary-file-name-regexp' has changed its
+default value to "".
+
** VC and related modes
*** Support for pulling on distributed version control systems.
**** Packages using Log View mode can enable this functionality by
binding `log-view-expanded-log-entry-function' to a suitable function.
+*** New command `vc-ediff' allows visual comparison of two revisions
+of a file similar to `vc-diff', but using ediff backend.
+
** Miscellaneous
---
*** New command `nato-region' converts text to NATO phonetic alphabet.
+*** The new command `info-display-manual' will display an Info manual
+specified by its name. If that manual is already visited in some Info
+buffer within the current session, the command will display that
+buffer. Otherwise, it will load the manual and display it. This is
+handy if you have many manuals in many Info buffers, and don't
+remember the name of the buffer visiting the manual you want to
+consult.
+
\f
* New Modes and Packages in Emacs 24.1
+** Occur Edit mode applies edits made in *Occur* buffers to the
+original buffers. It is bound to C-x C-q in Occur mode.
+
** New global minor modes electric-pair-mode, electric-indent-mode,
and electric-layout-mode.
+** tabulated-list.el provides a generic major mode for tabulated data,
+from which other modes can be derived.
+
** pcase.el provides the ML-style pattern matching macro `pcase'.
** secrets.el is an implementation of the Secret Service API, an
\f
* Incompatible Lisp Changes in Emacs 24.1
+---
+** `char-direction-table' and the associated function `char-direction'
+were deleted. They were buggy and inferior to the new support of
+bidirectional editing introduced in Emacs 24. If you need the
+bidirectional properties of a character, use `get-char-code-property'
+with the last argument `bidi-class'.
+
** `copy-directory' now copies the source directory as a subdirectory
of the target directory, if the latter is an existing directory. The
new optional arg COPY-CONTENTS, if non-nil, makes the function copy
programmer-visible consequences.
** Passing a nil argument to a minor mode function now turns the mode
- ON unconditionally.
+ON unconditionally.
** During startup, Emacs no longer adds entries for `menu-bar-lines'
-and `tool-bar-lines' to `default-frame-alist' and
-`initial-frame-alist'. With these alist entries omitted, `make-frame'
-checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
-determine whether to create a menu-bar or tool-bar, respectively.
-If the alist entries are added, they override the value of
-`menu-bar-mode'/`tool-bar-mode'.
+and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
+With these alist entries omitted, `make-frame' checks the value of the
+variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
+a menu-bar or tool-bar, respectively. If the alist entries are added,
+they override the value of `menu-bar-mode'/`tool-bar-mode'.
** Regions created by mouse dragging are now normal active regions,
similar to the ones created by shift-selection. In previous Emacs
\f
* Lisp changes in Emacs 24.1
+** Completion
+*** New variable completion-extra-properties used to specify extra properties
+of the current completion:
+- :annotate-function, same as the old completion-annotate-function.
+- :exit-function, function to call after completion took place.
+
+*** Functions on completion-at-point-functions can return any of the properties
+valid for completion-extra-properties.
+
+*** completion-annotate-function is obsolete.
+
+*** New `metadata' method for completion tables. The metadata thus returned
+can specify various details of the data returned by `all-completions':
+- `category' is the kind of objects returned (e.g., `buffer', `file', ...),
+ used to select a style in completion-category-overrides.
+- `annotation-function' to add annotations in *Completions*.
+- `display-sort-function' to specify how to sort entries in *Completions*.
+- `cycle-sort-function' to specify how to sort entries when cycling.
+
+** `glyphless-char-display' can now distinguish between graphical and
+text terminal display, via a char-table entry that is a cons cell.
+
+** `open-network-stream' can now be used to open an encrypted stream.
+It now accepts an optional `:type' parameter for initiating a TLS
+connection, directly or via STARTTLS. To do STARTTLS, additional
+parameters (`:end-of-command', `:success', `:capabilities-command')
+must also be supplied.
+
+** Code can now use lexical scoping by default instead of dynamic scoping.
+The `lexical-binding' variable lets code use lexical scoping for local
+variables. It is typically set via file-local variables, in which case it
+applies to all the code in that file.
+
+*** `eval' takes a new optional argument `lexical' to choose the new lexical
+binding instead of the old dynamic binding mode.
+
+*** Lexically scoped interpreted functions are represented with a new form
+of function value which looks like (closure ENV ARGS &rest BODY).
+
+*** New macro `letrec' to define recursive local functions.
+
+*** New function `special-variable-p' to check whether a variable is
+declared as dynamically bound.
+
+** pre/post-command-hook are not reset to nil upon error.
+Instead, the offending function is removed.
+
+** New low-level function run-hook-wrapped.
+
+** `server-eval-at' is provided to allow evaluating forms on different
+Emacs server instances.
+
+** `call-process' allows a `(:file "file")' spec to redirect STDOUT to
+a file.
+
** byte-compile-disable-print-circle is obsolete.
+** deferred-action-list and deferred-action-function are obsolete.
** Removed the stack-trace-on-error variable.
Also the debugger can now "continue" from an error, which means it will jump
to the error handler as if the debugger had not been invoked instead of
** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
-** New completion style `substring'.
-
** `facemenu-read-color' is now an alias for `read-color'.
The command `read-color' now requires a match for a color name or RGB
triplet, instead of signalling an error if the user provides a invalid
FIXME: These should be front-ended by xml.el.
-** FIXME GnuTLS
+** GnuTLS
+
+*** Emacs can be compiled with libgnutls support
+This is the default. You will then be able to use the functionality
+in gnutls.el, namely the `open-gnutls-stream' and `gnutls-negotiate'
+functions. It's easiest to use these functions through
+`open-network-stream' because it can upgrade connections through
+STARTTLS opportunistically or use plain SSL, depending on your needs.
+
+Only versions 2.8.x and higher or GnuTLS have been tested.
+
+*** gnutls-log-level
+Set `gnutls-log-level' higher than 0 to get debug output. 1 is for
+important messages, 2 is for debug data, and higher numbers are as per
+the GnuTLS logging conventions. The output is in *Messages*.
** Isearch
with a nil or omitted VALUE argument, the reporter message is
displayed with a "spinning bar".
+** New variable `revert-buffer-in-progress-p' is true while a buffer is
+being reverted, even if the buffer has a local `revert-buffer-function'.
+
+** New variables `delayed-warnings-list' and `delayed-warnings-hook' allow
+deferring warnings until the main command loop is executed.
+
++++
+** `set-auto-mode' now respects mode: local variables at the end of files,
+as well as those in the -*- line.
+
\f
* Changes in Emacs 24.1 on non-free operating systems
-** New configure.bat option --enable-checking builds emacs with extra
+** New configure.bat option --enable-checking builds Emacs with extra
runtime checks.
** New configure.bat option --distfiles to specify files to be
-included in binary distribution
+included in binary distribution.
+
+** New configure.bat option --without-gnutls to disable automatic
+GnuTLS detection.
+
+** New configure.bat option --lib for general library linkage, works
+with the USER_LIBS build variable.
-** New make target `dist' to create binary distribution for MS Windows
+** New make target `dist' to create binary distribution for MS Windows.
\f
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HCoop / bpt / emacs.git / blobdiff