3 * Option `--components' has been replaced with `--composites': By default,
4 the components of a composite glyph are now hinted separately, since tests
5 has shown that this gives good results in most cases. If this option is
6 set, however, the composite glyph itself gets hinted (and the hints of the
7 components are ignored).
9 An unfortunate side effect is that ttfautohint's option `-c' (which stays
10 as a shorthand for `--composites') now does exactly the opposite as in
13 * Older versions of Monotype's `iType' bytecode interpreter have a serious
14 bug: The DIV instruction rounds the result, while the correct operation is
15 truncation. This caused `exploding characters' with fonts hinted by
16 ttfautohint. Since many printers contain this rasterizer without any
17 possibility to update to a non-buggy version, ttfautohint now contains
18 work-arounds to circumvent the problem.
20 * Better support for glyphs where some points have almost the same position
21 (for example glyph `Oslash' in font `Roboto-Thin').
23 * Better support for glyphs which use explicit `on' points around round
29 * New option `--dehint' to strip off all hints without generating new hints.
30 This option is intended for testing purposes.
32 * Minor fixes to the created bytecode for compatibility.
34 * Minor GUI improvements.
39 * New option `--windows-compatibility' which adds two artificial blue zones
40 at vertical positions given by `usWinAscent' and `usWinDescent'. This
41 helps ttfautohint's hinting algorithm reduce the possibility of clipping
42 if those two values are very tight.
44 * Implement option `--x-height-snapping-exceptions', making ttfautohint
45 avoid x-height snapping for selected PPEM values. Useful in combination
46 with `--windows-compatibility'.
48 * Minor fixes to the created bytecode for compatibility and robustness.
53 * New option `--components' to treat components of composite glyphs
54 separately. This greatly reduces the bytecode size.
56 I'm waiting for reports whether this option works for most fonts; in case
57 this is true I'm inverting the option, making it the default (and the old
60 * Full support of TTCs, this is, all subfonts get auto-hinted now.
62 * The upper limit of the `--increase-x-height' option has been removed.
64 * Drag-and-drop support in the GUI.
66 * The TTY version of ttfautohint now acts like a (Unix) filter, this is, it
67 accepts stdin and stdout as input and output, respectively.
69 * Less memory consumption.
74 * A serious bug in the created bytecode has been fixed, causing incorrect
80 * A new, `strong' routine to handle stem widths and positions has been
81 added, to be selected with the `--strong-stem-width' command line option.
82 If it is active, stem widths and positions are snapped to the grid as much
83 as possible. This algorithm is useful for GDI ClearType support.
85 * A new command line option `--debug' (not available for ttfautohintGUI) to
86 print very detailed debugging information.
91 * The created bytecode has been reduced in size, making it approx. 20%
94 * New option `--symbol' to use standard stem height and width values instead
95 of using character `o' (which may be missing). Use this option for symbol
98 * More documentation (in text, HTML, and PDF format). It's still
101 * Option `--ignore-permissions' has been renamed to `--ignore-restrictions'.
102 The short form is still `-i'.
104 * Defaults for various parameters have been set to more sensible values:
106 hinting-range-max: 50 (was 1000)
107 hinting-limit: 200 (was 1000)
109 * Option `--increase-x-height' now has a mandatory argument (in the range
110 6-20 or value 0 to disable it, default value is 14).
115 * Implement option `-x' to increase the x height of the font for small PPEM
116 values by rounding up far more often then rounding down.
118 * Add option `-G N' to switch off hinting completely above value N.
120 * ttfautohint now appends version information and the used parameters to the
121 `Version' field(s) in the `name' table. This can be suppressed with
127 * A GUI has been added, using the Qt framework. The binary is called
133 * The improved handling of composite glyphs in 0.6 was buggy under certain
134 circumstances, making ttfautohint crash and FontValidator complain.
136 * Dropout handling has been activated.
141 * Improved handling of composite glyphs.
143 * Implement option `-p' to pre-hint glyphs with original hints before
144 conversion takes place.
146 * Don't add a DSIG table if there is none in the input font.
148 * Human-readable error messages instead of hexadecimal error codes.
150 * Better tests (both at runtime and compile time) to reject too old FreeType
156 * Rendering on iOS is now expected to give good results.
158 * No bad rendering at very large PPEM values.
163 * The bytecode has been changed to `create' twilight points. This should
164 avoid rendering artifacts on some platforms.
169 * Fix font generation; sometimes the `glyf' table was one byte too short,
170 making the font invalid.
175 * Fix bytecode bugs which prevented correct rendering on some platforms.