diff options
Diffstat (limited to 'etc/NEWS')
| -rw-r--r-- | etc/NEWS | 307 |
1 files changed, 289 insertions, 18 deletions
@@ -23,6 +23,167 @@ When you add a new item, use the appropriate mark if you are sure it applies, otherwise leave it unmarked. +* Installation Changes in Emacs 25.2 + ++++ +** 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 +emacs-version and erc-cmd-SV functions, and the leave the following +variables nil: emacs-build-system, emacs-build-time, +erc-emacs-build-time. + +** Emacs no longer works on IRIX. We expect that Emacs users are not +affected by this, as SGI stopped supporting IRIX in December 2013. + + +* Startup Changes in Emacs 25.2 + + +* Changes in Emacs 25.2 + ++++ +** 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' + +--- +** `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 +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') +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 +: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 + +Two new variables allow to disable 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', +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 +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. +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. + + +* Editing Changes in Emacs 25.2 + + +* Changes in Specialized Modes and Packages in Emacs 25.2 + +** eww + ++++ +*** 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 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. + +--- +** Support for non-string values of `time-stamp-format' has been removed. + +** Tramp + ++++ +*** New connection method "sg", which allows to edit files under +different group ID. + ++++ +*** New connection method "doas" for OpenBSD hosts. + +--- +** `auto-revert-use-notify' is set back to t in `global-auto-revert-mode'. + + +* 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. + + +* Lisp Changes in Emacs 25.2 + +** 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. +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 +in unit tests. + +--- +** `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 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 .*\\*\\'" . + (display-buffer-reuse-mode-window + (inhibit-same-window . nil) + (mode . Man-mode)))) + + +* 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 +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.) + + * Installation Changes in Emacs 25.1 +++ @@ -181,16 +342,32 @@ 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". + +++ ** 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. + +++ -** x-select-enable-clipboard is renamed select-enable-clipboard -and x-select-enable-primary is renamed select-enable-primary. +** 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. 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 @@ -206,6 +383,10 @@ selected window is strongly dedicated to its buffer. `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. + ++++ ** terpri gets an optional arg ENSURE to conditionally output a newline. +++ @@ -227,14 +408,6 @@ for use in Emacs bug reports. 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 -random values; in particular, the Emacs server now uses this facility -to produce its authentication key. - --- ** New input methods: `tamil-dvorak' and `programmer-dvorak'. @@ -326,6 +499,11 @@ is intended for adding to 'kill-emacs-query-functions'. 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'. + * Changes in Specialized Modes and Packages in Emacs 25.1 @@ -456,6 +634,9 @@ obsolete alias for the new `save-place-local-mode' command. `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. @@ -705,6 +886,11 @@ 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. + ++++ *** 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. @@ -714,6 +900,13 @@ the like off the page. 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. @@ -752,6 +945,17 @@ invalid certificates are marked in red. *** 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 @@ -763,6 +967,30 @@ respectively, `show-paren-when-point-inside-paren' or ** 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'. + + ** Lisp mode --- @@ -850,6 +1078,8 @@ to produce a neat summary. --- ** New js.el option `js-indent-first-init'. +It was renamed from `js-indent-first-initialiser', to avoid issues +with American vs British spelling. ** Info @@ -936,6 +1166,11 @@ variable, meaning you can bind it around an `url-retrieve' call. 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. + ** Tramp +++ @@ -985,6 +1220,11 @@ 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 @@ -1262,6 +1502,15 @@ 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' @@ -1359,14 +1608,6 @@ 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 -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. - -+++ ** `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 @@ -1404,6 +1645,14 @@ symbol-function was changed not to signal `void-function' any more. ** Comint, term, and compile do not set the EMACS env var any more. 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. @@ -1498,6 +1747,10 @@ behavior, set `diff-switches' to `-c'. 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)’. The new behavior is compatible with Common Lisp and with XEmacs. @@ -1603,6 +1856,10 @@ details. 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. @@ -1629,6 +1886,12 @@ 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". + --- *** 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 @@ -1818,6 +2081,14 @@ coding-system of your choice when invoking functions like `prin1' and ** 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 --- |