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+Nov 1996: t1lib-0.1-alpha
+-------------------------
+
+- first public release of t1lib with all basic functionality
+
+
+
+May 1997: t1lib-0.2-beta
+-------------------------
+
+
+- Now uses autoconf to configure the software for the system.
+
+
+- All functions put into one library.
+
+
+- ATTENTION: Argument order for the glyph-setting functions changed to be
+ consistent with the info functions. Programs that already use
+ t1lib have to be rewritten (sorry....)
+
+
+- Function for computing the width of a string added (T1_GetStringWidth()).
+
+
+- Function for computing the BoundingBox of a string added
+ (T1_GetStringBBox()).
+
+
+- Function T1_GetMetricsInfo() added. It returns a struct containing width,
+ bounding box, number of characters and horizontal position of the characters
+ in character space coordinates (afm-units).
+
+
+- Function T1_GetBBox() renamed to T1_GetCharBBox() for consistency reasons.
+
+
+- All exit() calls removed from library and replaced by appropriate error
+ return codes.
+
+
+- t1lib now optionally supports a logfile for logging of error- and
+ warning-messages at runtime. The "verbosity" of this logfile may be chosen
+ by the user.
+
+
+- Documentation more complete.
+
+
+
+July 1997: t1lib-0.3-beta
+-------------------------
+
+
+- Code for placing character bitmaps in T1_SetString() slightly advanced; the
+ restrictions concerning slanted fonts are eliminated.
+
+
+- T1_GetStringBBox()/T1_GetCharBBox() extended. It is now possible to get the
+ bounding box if the font is slanted. This is implemented by examining the
+ characters outline at 1000bp.
+
+
+- Some Bugs in the code managing linked lists of font sizes have been
+ corrected.
+
+
+- Bug in T1_CopyFont() has been corrected. This should work now.
+
+
+- The behavior during configuration file searching has been changed to
+ be compatible to well known UNIX-conventions.
+
+
+- As the main new feature in this release t1lib now has direct support
+ for X11 (optionally). There is a set of functions that act similar
+ to XDrawText(), i.e. they draw directly into a drawable (pixmap or
+ window).
+
+ - Caching of bitmaps of the X11 rastering functions is also done
+ in the X-Server for maximum performance (although it is not as
+ fast as I dreamed of, admittedly).
+
+ - X11 rastering functions use the current foreground/background
+ colors
+
+ - The X11 rastering functions implement automatical antialiasing
+ between foreground and background color
+
+ - The X11 rastering functions provide an opaque and a transparent
+ mode
+
+ - The X11 rastering functions can draw into drawable of any depth
+ (provided the depth is large enough)
+
+
+- A new target has been added to the makefiles allowing to remove
+ a t1lib-installation automatically from a system.
+
+
+
+December 1997: t1lib-0.4-beta
+-----------------------------
+
+
+- Many memory allocation bugs fixed. t1lib is now "libefence-proved".
+
+
+- Kerning and Metrics-Lookup rewritten. The corresponding functions are now
+ based on character indices rather than on character names which makes them
+ up to 8 x faster than before, depeding on data and context.
+
+
+- Raph Levien (raph@acm.org) contributed a fast algorithm for subsampling
+ which improves Antialiasing time significantly.
+
+
+- Fred L. Drake, Jr. (fdrake@acm.org) contributed a Python-interface
+ to t1lib. This allows Python programmers to make use of Adobe Type
+ 1 fonts. This package, called t1python, is distributed with t1lib in
+ an independent subdirectory of the distribution. See README.t1python
+ for more information on t1python.
+
+
+- Bitmaps and antialiased bitmaps may now be padded 8, 16 or 32 bits. This
+ allows (with some restrictions) somewhat faster concatenation of
+ characterbitmaps to stringbitmaps. The padding-value may be set and queried
+ at runtime.
+
+
+- The optional X11-interface, introduced in t1lib-0.3-beta, has been reduced
+ to a simple wrapper. X11-pixmap caching has been completely dropped since it
+ has proven to be too inefficient. However, at the level of the function
+ calls, nothing has changed.
+
+
+- Configuration of t1lib (with or without X11-interface) may be queried by
+ applicationprogrammers at compiletime or by applications at runtime.
+
+
+- Two functions for informations on fonts have been added:
+
+ 1) T1_GetFontBBox(): Return a fonts' bounding box.
+
+ 2) T1_GetAllCharNames(): Return a list of all character defined in a Type 1
+ font. This might be of interest if somebody wants
+ to set up new encodings.
+
+
+- Function T1_CloseLib() added. This function allows to completely free the
+ data-structures of t1lib. T1_CloseLib() should be called in future when an
+ application using t1lib exits.
+
+
+- Many other things not worth to be metioned ...
+
+
+
+March 1998: t1lib-0.5-beta
+--------------------------
+
+
+- Changed the license to the GNU General Public Library License (LGPL)
+
+
+- Definition of INFINITY removed from
+ lib/type1/[regions.c|regions.h|t1imager.h]. Collided with a
+ definition in math.h on OS/2.
+
+
+- Implemented proper handling of environment variables CFLAGS, LDFLAGS
+ and CC during build process.
+
+
+- Added target 'without_doc' for people who have a very rudimentary or
+ no LaTeX-System at all
+
+
+- Fixed some bugs that appeared when font files from database were not
+ found
+
+
+- Clipmask Bug in the X11-rastering functions fixed
+
+
+- Bugs in VM-reallocation (T1_LoadFont()) repeatedly fixed. It is now
+ ANSI-C compliant.
+
+
+- Alignment of VM changed. This was needed on some systems.
+
+
+- Set of functions for accessing information from FontInfo dictionary
+ is now complete. This introduces the new functions
+ T1_GetFullName(), T1_GetFamilyName(), T1_GetWeight(),
+ T1_GetItalicAngle(), T1_GetIsFixedPitch(), T1_GetVersion(),
+ T1_GetNotice().
+
+
+- ATTENTION: In the above context, T1_GetPostScriptName() has been
+ renamed to T1_GetFontName() for consistency reasons, sorry.
+
+
+- ATTENTION: All types "unsigned char (*)" have been changed to
+ char (*) in the API functions. This was necessary while adapting
+ t1lib to ANSI-standard to make it portable. Sorry for this
+ confusion.
+
+
+- New function T1_AddFont(): Fonts can now be added to the font
+ database at runtime. This means especially, one can ignore a
+ FontDataBase file thus can start t1lib-programs on single fontfiles
+ without doing a complete setup before.
+
+
+- There is now also the possibility to ignore the currently active
+ configuration file, thereby setting all search paths to the current
+ working directory and having an empty font data base. This is meant
+ for small applications that work on single files.
+
+
+- t1lib is now able to work with fonts without corresponding
+ afm-files. AFM-information can be produced from pfa- and
+ pfb-files. This, of course, refers only to character-metrics
+ information.
+
+
+- A function T1_WriteAFMFallbackFile() is provided which allows to
+ dump metrics information to a valid AFM-file.
+
+
+- New subdirectory type1afm created which contains type1afm, a program
+ to extract afm files from Type 1 font files.
+
+
+- Renamed definitions MAX, MIN, ABS, TRUE and FALSE because they
+ collided with system header files on some systems.
+
+
+- Corrected antialiasing functions. The metrics should now be as
+ correct as possible and black pixel at the right edge of the bitmaps
+ should not appear any more.
+
+
+- Handling of unencoded characters in strings (such as adieresis in
+ AdobeStandardEncoding) is now consistent in rotated and non-rotated
+ glyphs.
+
+
+- A few functions have been added to get information on the file search
+ environment and to manipulate the search paths from within applications.
+
+
+- Mixed endian setups (i.e., client and X-server on different machines
+ with different endianess) should now be handled correctly.
+
+
+- In summary t1lib should now be much more portable than before.
+
+
+- Update to t1python-0.3
+
+
+
+March 1998: t1lib-0.6-beta
+--------------------------
+
+
+- Cleaned up the sources in type1-directory
+
+
+- Functions Xalloc() and Xfree removed. x11dummy.c from list of source files
+ removed.
+
+
+- A few bugs fixed
+
+
+- Character positioning rewritten. It does now handle strings
+ correctly in which the leftmost pixels does not belong to the first
+ character and the rightmost pixels do not belong to the last character.
+
+
+- t1lib now substitutes .notdef for defined character names that have
+ no corresponding charstring. This is a workaround for some fonts in
+ the ghostscript distribution (e.g., s050000l.pfb)
+
+
+- Separated the X11-wrapper from the rest of t1-stuff. t1lib now
+ consists of two libraries and two include files.
+
+
+- Cleaned up configuration and compilation process.
+
+
+
+May 1998: t1lib-0.7-beta
+------------------------
+
+
+- Athena libraries are explicitly located for non-standard system
+
+
+- glyph-structure changed. glyph.metrics.characterWidth is replaced
+ glyph.metrics.advanceX and an entry glyph.metrics.advanceY is added.
+
+
+- Interpretation of the sign of glyph.metrics.descent has changed.
+
+
+- String-rastering functions now support Underlining, Overlining and
+ Overstriking.
+
+
+- Functions for overriding default line-parameters implemented.
+
+
+- Whitespace at beginning and ending of glyphs is now correctly recorded into
+ leftSideBearing and RightSideBearing.
+
+
+- Function T1_ConcatGlyphs() added to API. It concatenates two glyphs of
+ identical depth with an optional displacement inserted.
+
+
+- xglyph output window has changed for X-rastering functions. It is now of
+ constant size with the logical origin in the center. Too large glyphs are
+ simply clipped.
+
+
+- t1lib can be compiled and run on VMS thanks to John Hasstedt
+ (John.Hasstedt@sunysb.edu). A configure.com script for building on VMS is
+ included in the toplevel directory.
+
+
+- T1_GetMetricsInfo() and T1_GetStringBBox() fixed. Now results are correct
+ also if the leftmost pixel in a glyph doesn't belong to the first char and if
+ the rightmost pixel does not belong to the last character.
+
+
+- Leading and trailing white space in glyphs should now be recorded
+ consistently and correctly for all rastering functions.
+
+
+- xglyph can now display a character map of a font.
+
+
+- Global variable T1_errno introduced. It basically works the same way
+ as the errno in libc. This allows applications a unified
+ error-handling.
+
+
+- Update to t1python-0.7.
+
+
+
+November 1998: t1lib-0.8-beta
+-----------------------------
+
+
+- T1_GetAllCharNames() returned invalid list if the Charstrings dictionary was
+ larger than the actual number of charstrings defined (which is perfectly
+ valid, even if it does not make much sense) --> fixed.
+
+
+- 4 x Antialiasing implemented. This can improve the quality at small sizes
+ once more, at the cost of some computational and memory requirement. It is
+ possible to work with 2 x and 4 x concurrently.
+
+
+- Function T1_GetLibIdent() added to API.
+
+
+- Function T1_SetRasterFlags() added to API. It allows to selectively enable
+ or disable certain rasterizer features like, e.g., hinting.
+
+
+- xglyph extended to support 4 x antialiasing.
+
+
+- xglyph now recognizes a few commandline options, primarily intended for
+ debugging purposes.
+
+
+- xglyph is now somewhat more intelligent (and faster) if slanting,
+ extending or reencoding is applied to a font.
+
+
+- New function T1_SetDefaultEncoding(). It allows to set a default
+ encoding vector which then is applied to all subsequently loaded fonts
+ that have StandardEncoding.
+
+
+- Bug in Type 1 rasterizer corrected which prevented fonts with non-standard
+ lenIV values from being correctly decrypted (Charstring decryption).
+
+
+- Internal ISOLatin1Encoding removed from rasterizer since there's no reason
+ for mainting this encoding scheme internally
+
+
+- tlib now has notion of "Encoding Schemes". The format of encoding files is
+ extended correspondingly and is backward compatible.
+
+
+- Memory leaks eliminated, thanks to David Huggins-Daines.
+
+
+- Some slight performance improvements.
+
+
+- Kerning performance improved. Moreover, kerning pairs need no longer be
+ alphabetically sorted.
+
+
+- AFM-parser modified to work with DOS-style AFM-files.
+
+
+- Some bugs in scan-code of Type 1 rasterizer corrected. Scanner is now aware
+ of pfb-blocks and can scan files with multiple binary data segments.
+
+
+- t1lib now uses GNU-libtool, thanks to Hirotsugo Kakugawa
+ (h.kakugawa@computer.org)
+
+
+- An encoding file for IsoLatin2 charset is included thanks to Jiri
+ Pavlovsky (jirap@bajt.cz).
+
+
+- The angle-argument of the rastering functions has been replaced by a more
+ general transformation specification. This is an incompatible change to
+ previous versions, but I think it should be worth it.
+
+
+- t1lib can now handle fontfile names with arbitrary extensions and
+ even without extension.
+
+
+- t1lib compiles and runs under Win32 using the cygwin32 toolkit.
+
+
+- Maximum number of stem-hints enlarged (-> 256) because 128 were not enough
+ for complicated fonts.
+
+
+
+May 1999: t1lib-0.9
+-------------------
+
+
+- Sub-Pixel positioning for Antialiasing functions enthanced (It was in fact
+ not correct before.
+
+
+- Multiple Master fonts are rejected instead of SIGSEGV (nearly as
+ professional as supporting them ;)
+
+
+- An additional set of functions allows access, filling and manipulation of
+ outlines.
+
+
+- Functionality for non-antialiased "bytemaps".
+
+
+- "Smart Antialiasing", allows to automatically let t1lib decide what AA-level
+ to use. The switchlimits are adjustable.
+
+
+- An AFM-filename may explicitly be specified. This suppresses t1libīs search
+ for these files. This allows interfacing with other path search systems like
+ kpathsea. This was suggested by Nicolai Langfeldt (janl@math.uio.no).
+
+
+- Some problems with aspect ratios different from 1 and transformed glyphs
+ fixed.
+
+
+- Support for Right-To-Left typesetting. This might be experimental because I
+ don't know the rules for this exactly.
+
+
+- In the context of Right-To-Left typesetting T1_ConcatGlyphs() expects one
+ additional argument "mode".
+ ATTENTION: This is an incompatible change with respect to V. 0.8.
+
+
+- abort()-calls in type1-sources are caught by longjmp(). t1lib does not
+ any longer exit a program. Rather, errors may be handled by the user.
+
+
+- If a rastering operation did not produce any black pixels, the rastering
+ fuctions do not return a NULL-glyph any longer. Rather, a glyph with the
+ correct metrics and NULL-bitmap pointer is returned. This seems to come
+ closer to accepted standards.
+
+
+- The t1python-package is currently not distributed with t1lib because the
+ interface is not up to date.
+
+
+- A lot of bugs fixed (and a lot of others introduced, of course :)
+
+
+
+
+June 1999: t1lib-0.9.1
+---------------------
+
+
+- Several Bug-fixes, some functions that have been reported to be missing by
+ users, but no general new features.
+
+
+- New functions T1_GetExtend(), T1_GetSlant() and T1_GetTransform() which give
+ access to currently active values of fontlevel transformations
+
+
+- New function T1_GetNoKernPairs() which gives access to the number of defined
+ kerningpairs.
+
+
+- New functions to query the grayvalue settings (T1_AAGetGrayValues(),
+ T1_AAHGetGrayValues() and T1_AANGetGrayValues())
+
+
+- Arbitrary linear transformations on fontlevel including caching using
+ T1_TransformFont() (on suggestion and patches by Derek B. Noonburg,
+ (derekn@foolabs.com)
+
+
+- Introduction of the initialization flag T1_NO_AFM which suppresses use of
+ AFM data. This limits the functionality of t1lib considerably but
+ applications that do not need those advanced functions can gain some
+ performance boost while loading fonts because AFM files are not parsed and
+ the mapping tables are not setup (also by Derek B. Noonburg)
+
+
+- xglyph clips output window for the function fonttable() to the physical
+ screen size. This is to prevent from freezing or exceeding resources if the
+ fonttable button had accidentally been pressed while a large size was active.
+
+
+- The utility function T1_DumpPixmap() removed from API. New function
+ T1_XImageFromGlyph() added to X11 interface. This function allows, together
+ with the Xpm-library function XpmWriteFileFromImage(), to write xpm-files
+ from glyphs of arbitrary depths, colors, etc ...
+
+
+- Functions T1_CopyOutline() and T1_FreeOutline() added to the outline interface.
+
+
+- Fixed alignment problem on 64bit architecture.
+
+
+
+September 1999: t1lib-0.9.2:
+----------------------------
+
+
+- Support for EMX-environments under MSDOS. This concerns the file locating
+ routines.
+
+
+- t1lib now allows for charstring code 15 and escape code 15 by ignoring
+ these. They may appear in some old Adobe fonts.
+
+
+- Makefiles are more independent of GNU make.
+
+
+- Finally, undefined/missing characters are handled consistent in all rastering
+ functions by substituting .notdef.
+
+
+- Several bug-fixes
+
+
+
+November 1999: t1lib-1.0:
+-------------------------
+
+
+- Bug-fixes.
+
+
+- There happen to exist different assumptions about what exactly ISOLatin1Encoding
+ is. Especially the name for char 45 (dec) is not uniquely specified in
+ ISO 8859-1. Thus t1lib provides two encoding files ISOLatin1Encoding one
+ which (PSLatin1.enc) is compatible with PostScript Level 2 and above.
+
+
+
+March 2000: t1lib-1.0.1:
+-------------------------
+
+
+- A few bug Fixes.
+
+
+- lenIV=-1 is now handled. According to an undocumented Adobe convention
+ lenIV=-1 indicates suppressing of charstring encryption.
+
+
+- Patches to compile t1lib und MS Visual C++ 6.0. In case something goes
+ wrong, please contact Nakano Hideo (hideo@mb.infoeddy.ne.jp).
+
+
+
+February 2001: t1lib-1.1.0:
+---------------------------
+
+
+- Bug Fixes.
+
+
+- Functions T1_GetFontFilePath() and T1_GetAfmFilePath() which return the
+ complete path of the files used by t1lib.
+
+
+- Fixed parser code which previously failed on ASCII-encrypted files in
+ which the hex-lines were separated by <LF><CR> instead of by <LF> (Yes,
+ there such DOSian files out there ...).
+
+
+- Multiple inclusion protection for t1lib.h
+
+
+- T1_QueryLigs() fixed. It did not work correct if successors and/or
+ ligatures were not in the current encoding.
+
+
+- New patches for VMS by Martin P. J. Zinser (zinser@decus.de).
+
+
+- Patch by Sergey Babkin (babkin@bellatlantic.net) to correct the rasterizer
+ to respect StdStemWidths.
+
+
+- General support for font subsetting.
+
+
+- Dokumentation also provided as pdf for those people who do not have LaTeX
+ installed. This is due to suggestions and patches by Nguyen-Dai Quy
+ (NDQ@iris.ltas.ulg.ac.be).
+
+
+
+April 2001: t1lib-1.1.1:
+------------------------
+
+
+- Update to libtool-1.3.5.
+
+
+- T1_GetFontBBox() also accepts specification consisting of floating point
+ numbers (as suggested by Derek B. Noonburg (derekn@foolabs.com)).
+
+
+- Within the near future the t1lib-webpage will be no longer available
+ because I will change my employer.
+
+
+- Similarly, the sources will be distributed from sunsite only from then on.
+
+
+- The Author's eMail-address will also become invalid in the near future. The
+ new and hopefully permanent eMail.address will be "Rainer.Menzner@web.de".
+
+
+
+July 2001: t1lib-1.2:
+----------------------
+
+
+- Fixed bug in subsetting code.
+
+
+- Fixed bug in AFM-parser code.
+
+
+- Fixed kerning mapping code. Kerning did not work correctly for characters
+ that appeared multiple times in an encoding vector.
+
+
+- In the same context a new function, T1_GetEncodingIndices() has been added
+ to the API. It returns an array of indices (by contrast,
+ T1_GetEncodingIndex() returns only the lowest index found).
+
+
+- Support for composite characters.
+
+
+- Additional support for dvips encoding files (thanks to suggestion and
+ contribution by Nicolai Langfeldt (janl@linpro.no).
+
+
+- Documentation is installed in PostScript and PDF format, but no longer in
+ DVI format.
+
+
+
+October 2001: t1lib-1.3:
+------------------------
+
+
+- *Really* an update to libtool-1.3.5
+
+
+- Global Font Metrics Information is loaded from AFM files in order to be able
+ to read the typographic ascender. Line ruling did not behave as
+ documented. However, problems could still exist because the typographic
+ ascender specification is optional in AFMs.
+
+
+- Reorganized search path handling and, in particular, the respective
+ documentation is more detailed.
+
+
+- The configuration file now allows multiple lines of one type of search path
+ specification and it is also possible to quote path specification in order
+ to specify paths that contains special characters like spaces, colons, etc.
+
+
+- Multiple font databases are supported.
+
+
+- T1_PrintLog() extended to accept a variable argument list.
+
+
+- The environment variable T1LIB_LOGMODE is evaluated to give the user the
+ chance to specify a loglevel and hence to detect t1lib-problems even if the
+ application programmer did not enable the log file features.
+
+
+- Further bug fixes
+
+
+
+November 2001: t1lib-1.3.1:
+---------------------------
+
+
+- Color problem in t1x11-module fixed.
+
+
+- Fixes in AFM parser. Among others, Version had been read as name, instead of
+ as string. This led to a failure to scan global font info for some standard AFMs.
+
+
+- Fixes in of OpenVMS special code
+
+
+- Further Fixes
+
+
+
+January 2003: t1lib-5.0.0:
+--------------------------
+
+
+- Forced PostScript target in the doc directory to file.
+
+
+- Subsetting code extended in order to ensure that components of
+ composite characters are also part of the subset.
+
+
+- Hinting meachanism reworked in order to get rid of some
+ rasterizing artifacts.
+
+
+- Experimental support for stroked fonts (PaintType=1)
+
+
+- Experimental support for stroking standard ATM fonts with PaintType=0.
+
+
+- For historical reasons, there happened to exist a few documented API
+ functions that did not adhere to the T1_... naming convention. After
+ considering the pro's and con's, I have decided to cleanup the interface,
+ thus making this version incompatible to the previous version. Especially
+ in the type1 subdirectory there are still a lot of global symbols, but at
+ least these are not part of the documented API. The following functions
+ are affected:
+
+ CheckForInit() --> T1_CheckForInit()
+ CheckForFontID() --> T1_CheckForFontID()
+ T1_Get_no_fonts() --> T1_GetNoFonts()
+
+ Furthermore, I have removed and made static a few functions which
+ accidentally had found their way into t1lib.h, but which had not been part
+ of the documented API.
+
+ I'm sorry if this causes inconveniences ...
+
+
+- The new version, 5.0.0, follows as consequence from the issues discussed
+ above. It is defined by the libtool quantities CURRENT, REVISION and AGE.
+
+
+- Functions for drawing rectangles.
+
+
+- Bug Fixes
+
+
+- Please also have a look at the topic "Future" in README.t1lib-5.0.0.
+
+
+
+February 2004: t1lib-5.0.1:
+---------------------------
+
+
+- Support for Flex was not adapted to the changes from 5.0.0. This led to
+ rasterization errors in fonts that use the Flex functionality --> fixed.
+
+
+- Bug Fixes
+
+
+
+April 2004: t1lib-5.0.2:
+------------------------
+
+
+- Changes not updated for this version
+
+
+
+Mai 2005: t1lib-5.1.0:
+----------------------
+
+
+- Check against MultipleMasterFonts somewhat more tolerant, so that
+ Type 1 Fonts automatically created from Multiple Master Fonts (e.g.
+ using Mmpfb) should now be acceptable.
+
+
+- The configure-machinery had been somewhat out of date and has been
+ updated. The distributed configure script has been generated by
+ AutoConf 2.59 and the redistributed libtool parts are taken from
+ GNU libtool 1.5.10.
+
+
+- Top-Level TeX-file in the doc subdirectory adapted to recent TeX
+ systems' requirements.
+
+
+- Added IsoLatin9.enc to distribution.
+
+
+- Subsetting extended so that it works for SEAC-constructed composites
+ even if no AFM composite character information is available
+
+
+- Somewhat more intelligent defaults for subsetting when composite
+ characters are included in the subset.
+
+
+- Reallocation had been broken by relocation of internal StandardEncoding
+ vector. This problem turned out on systems where realloc() actually
+ returned a different pointer.
+
+
+- Fix for outline code on 64bit systems. This involves a redefinition
+ of the T1_PATHPOINT struct. This should be uncritical because for 32bit
+ systems there is no difference, whereas on 64bit systems, this has never
+ worked correctly before.
+
+
+- DESTDIR support in Makefile.in by Volker Zell
+
+
+- Support for XLFD font database format (in which the fonts' names appear
+ in the first place on a line).
+
+
+- Further Bug Fixes
+
+
+
+December 2006: t1lib-5.1.1:
+---------------------------
+
+- DESTDIR support was missing and has been addded in install-target for type1afm.
+
+- A bug fix in Anti-Aliasing subsampling code, which could make t1lib crash
+ under certain conditions.
+
+- Small number of further fixes, in particular with respect to the build
+ mechanism.
+
+
+
+December 2007: t1lib-5.1.2:
+---------------------------
+
+- Small number of fixes reported by users. The fixes pertain to a
+ vulnerability issue, memory access issues.
+
+- More decent handling if Encoding and / or FontBBox specification are missing
+ (which is invalid with respect to the specification, but recoverablel).