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6bf7aab6 | 1 | @c This is part of the Emacs manual. |
3f548a7c | 2 | @c Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
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3 | @c See file emacs.texi for copying conditions. |
4 | ||
e93bc142 | 5 | @node Antinews, Mac OS / GNUstep, X Resources, Top |
b420746a | 6 | @appendix Emacs 22 Antinews |
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8 | For those users who live backwards in time, here is information |
9 | about downgrading to Emacs version 22.3. We hope you will enjoy the | |
10 | greater simplicity that results from the absence of many Emacs | |
11 | @value{EMACSVER} features. | |
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12 | |
13 | @itemize @bullet | |
4829cfc3 | 14 | |
6bf7aab6 | 15 | @item |
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16 | The Fontconfig font library is no longer supported. To specify a |
17 | font, you must use an XLFD (X Logical Font Descriptor). The other | |
18 | ways of specifying fonts---so-called ``Fontconfig'' and ``GTK'' font | |
19 | names---are clearly redundant, and have been removed. | |
6bf7aab6 | 20 | |
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21 | @item |
22 | We have switched to a character representation specially designed for | |
23 | Emacs. Rather than forcing all the widely used scripts artificially | |
24 | into alignment, like Unicode does, Emacs treats them all equally, | |
25 | giving each one a place in the space of character codes. Thus, | |
26 | scripts do not need to fight over characters used in each one of them, | |
27 | as each has its own variant, and they all are different as far as | |
28 | Emacs is concerned. For example, there's a Latin-1 c-cedilla | |
29 | character, and there's a Latin-2 c-cedilla; searching a buffer for the | |
30 | Latin-1 variant will only find that variant, but not the others. This | |
31 | design allows us to get rid of a confusing situation in Emacs 23, | |
32 | whereby a character can simultaneously belong to any number of | |
33 | charsets. | |
34 | ||
35 | @item | |
36 | Emacs now uses an internal encoding, known as @samp{emacs-mule}, which | |
37 | is peculiar to Emacs and does not map easily into any of the existing | |
38 | character encodings, including Unicode. This was imperative to | |
39 | support several different variants of the same character, each one | |
40 | belonging to its own script: @samp{emacs-mule} marks each character | |
41 | with its script, to better discern them from one another. | |
42 | ||
43 | @item | |
44 | For simplicity, the functions @code{encode-coding-region} and | |
45 | @code{decode-coding-region} no longer accept an argument saying where | |
46 | to store the result of their conversions. The result always replaces | |
47 | the original, so there's no need to look for it elsewhere. | |
48 | ||
6bf7aab6 | 49 | @item |
94534bbd | 50 | Emacs no longer performs font anti-aliasing. If your fonts look ugly, |
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51 | try choosing a larger font and increasing the screen resolution. |
52 | Admittedly, this becomes difficult as you go further back in time, | |
53 | since available screen resolutions will decrease. | |
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54 | |
55 | @item | |
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56 | Emacs has added support for some soon-to-be-non-obsolete platforms. |
57 | These include GNU/Linux systems based on libc version 5, BSD systems | |
58 | based on the COFF executable format, Solaris versions less than 2.6, | |
59 | and many more. | |
6bf7aab6 | 60 | |
4829cfc3 | 61 | @item |
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62 | Emacs can no longer display frames on X windows and text terminals |
63 | (ttys) simultaneously. If you start Emacs as an X application, the | |
64 | Emacs job can only create X frames; if you start Emacs on a tty, the | |
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65 | Emacs job can only use that tty. No more confusion about which type |
66 | of frame will @command{emacsclient} use in any given Emacs session! | |
6bf7aab6 | 67 | |
189a47e4 | 68 | @item |
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69 | Emacs can no longer be started as a daemon. We decided that having an |
70 | Emacs sitting silently in the background with no visual manifestation | |
71 | anywhere in sight is too confusing. | |
189a47e4 | 72 | |
6bf7aab6 | 73 | @item |
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74 | Transient Mark mode is now disabled by default. Furthermore, some |
75 | commands that operate specifically on the region when it is active and | |
76 | Transient Mark mode is enabled (such as @code{fill-paragraph} | |
77 | @code{ispell-word}, and @code{indent-for-tab-command}), no longer do | |
78 | so. | |
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79 | |
80 | @item | |
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81 | The line motion commands, @kbd{C-n} and @kbd{C-p}, now move by logical |
82 | text lines, not screen lines. Even if a long text line is continued | |
83 | over multiple screen lines, @kbd{C-n} and @kbd{C-p} treat it as a | |
84 | single line, because that's ultimately what it is. | |
6bf7aab6 | 85 | |
6bf7aab6 | 86 | @item |
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87 | Visual Line mode, which provides ``word wrap'' functionality, has been |
88 | removed. You can still use Long Lines mode to gain an approximation | |
89 | of word wrapping, though this has some drawbacks---for instance, | |
90 | syntax highlighting often doesn't work well on wrapped lines. | |
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91 | |
92 | @item | |
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93 | The variable @code{shift-select-mode} has been deleted; holding |
94 | @key{shift} while typing a motion command no longer creates a | |
95 | temporarily active region. You can still create temporarily active | |
96 | regions by dragging the mouse. | |
daaf40c7 | 97 | |
6bf7aab6 | 98 | @item |
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99 | @kbd{C-l} now runs @code{recenter} instead of |
100 | @code{recenter-top-bottom}. This always sets the current line at the | |
101 | center of the window, instead of cycling through the center, top, and | |
102 | bottom of the window on successive invocations of @kbd{C-l}. This | |
103 | lets you type @kbd{C-l C-l C-l C-l} to be @emph{absolutely sure} that | |
104 | you have recentered the line. | |
daaf40c7 | 105 | |
6bf7aab6 | 106 | @item |
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107 | Typing @kbd{M-n} at the start of the minibuffer history list no longer |
108 | attempts to generate guesses of possible minibuffer input. It instead | |
109 | does the straightforward thing, by issuing the message @samp{End of | |
110 | history; no default available}. | |
daaf40c7 | 111 | |
6bf7aab6 | 112 | @item |
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113 | Individual buffers can no longer display faces specially. The text |
114 | scaling commands @kbd{C-x C-+}, @kbd{C-x C--}, and @kbd{C-x C-0} have | |
115 | been removed, and so has the buffer face menu bound to | |
116 | @kbd{S-down-mouse-1}. | |
4829cfc3 | 117 | |
6bf7aab6 | 118 | @item |
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119 | VC no longer supports fileset-based operations on distributed version |
120 | control systems (DVCSs) such as Arch, Bazaar, Subversion, Mercurial, | |
121 | and Git. For instance, multi-file commits will be performed by | |
122 | committing one file at a time. As you go further back in time, we | |
123 | will remove DVCS support entirely, so start migrating your projects to | |
124 | CVS. | |
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125 | |
126 | @item | |
daaf40c7 | 127 | To keep up with decreasing computer memory capacity and disk space, many |
94534bbd | 128 | other functions and files have been eliminated in Emacs 22.3. |
6bf7aab6 | 129 | @end itemize |
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130 | |
131 | @ignore | |
132 | arch-tag: 32932bd9-46f5-41b2-8a0e-fb0cc4caeb29 | |
133 | @end ignore |