Commit d8fc009dbbab054164166b7dd643d5d72c9269c3
2015-11-21T13:12:06
Update `CHANGES' file.
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diff --git a/docs/CHANGES b/docs/CHANGES
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+CHANGES BETWEEN 2.6 and 2.6.2
+
+ I. IMPORTANT CHANGES
+
+ - The auto-hinter now supports stem darkening, to be controlled by
+ the new `no-stem-darkening' and `darkening-parameters'
+ properties. This is an experimental feature, and the interface
+ might change in a future release.
+
+ - By default, stem darkening is now switched off (for both the CFF
+ engine and the auto-hinter). The main reason is that you need
+ linear alpha blending and gamma correction to get correct
+ rendering results, and the latter is not yet available in most
+ freely available rendering stacks like X11. Applying stem
+ darkening without proper gamma correction leads to far too dark
+ rendering results.
+
+ - The meaning of `FT_RENDER_MODE_LIGHT' has been slightly
+ modified. It now essentially means `no hinting along the
+ horizontal axis'; in particular, no change of glyph advance
+ widths. Consequently, the auto-hinter is used for all scalable
+ font formats except for CFF. It is planned that other
+ font-specific rendering engines (TrueType, Type 1) will follow.
+
+
+ II. MISCELLANEOUS
+
+ - For better compatibility with FontConfig, function
+ `FT_Library_SetLcdFilter' accepts a new enumeration value
+ `FT_LCD_FILTER_LEGACY1' (which has the same meaning as
+ `FT_LCD_FILTER_LEGACY').
+
+ - A large number of bugs have been detected by using the libFuzzer
+ framework, which should further improve handling of invalid
+ fonts. Thanks again to Kostya Serebryany and Bungeman!
+
+ - `TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES', a new configuration
+ option, controls the maximum number of executed opcodes within a
+ bytecode program. You don't want to change this except for very
+ special situations (e.g., making a library fuzzer spend less
+ time to handle broken fonts).
+
+ - The smooth renderer has been made faster.
+
+
+======================================================================
+
CHANGES BETWEEN 2.6 and 2.6.1
I. IMPORTANT BUG FIXES