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Changes in TIFF v3.7.3
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<BODY BGCOLOR=white>
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<FONT FACE="Helvetica, Arial, Sans">
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<FONT FACE="Helvetica, Arial, Sans">
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<BASEFONT SIZE=4>
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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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<BASEFONT SIZE=3>
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<UL>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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<B>Current Version</B>: v3.7.3<BR>
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<B>Previous Version</B>: <A HREF=v3.7.2.html>v3.7.2</a><BR>
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.remotesensing.org/pub/libtiff">
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ftp.remotesensing.org</a>, directory pub/libtiff</A><BR>
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<B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff">
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http://www.remotesensing.org/libtiff</a>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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</UL>
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<P>
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This document describes the changes made to the software between the
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<I>previous</I> and <I>current</I> versions (see above).
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If you don't find something listed here, then it was not done in this
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timeframe, or it was not considered important enough to be mentioned.
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The following information is located here:
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<UL>
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<LI><A HREF="#hightlights">Major Changes</A>
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<LI><A HREF="#configure">Changes in the software configuration</A>
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<LI><A HREF="#libtiff">Changes in libtiff</A>
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<LI><A HREF="#tools">Changes in the tools</A>
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<LI><A HREF="#contrib">Changes in the contrib area</A>
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</UL>
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<p>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>
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<UL>
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<li> Replace runtime endianess check with the compile time one.
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<li> Added support for the new predictor type (floating point
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predictor), defined at the TIFF Technical Note 3.
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<li> Added Support for custom tags, passed by value.
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Added support for all DNG tags.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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<UL>
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<li> Do not use empty -R option when linking with --enable-rpath.
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<li> Added workaround for OpenBSD/MirOS soname problem as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=838">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=838</a>
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<li> Fixed parallel compilation of the libtiff and
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libtiffxx libraries as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=826">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=826</a>
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<li> configure.ac, libtiff/Makefile.am: Use libtool machinery to pass
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rpath option.
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<li> make.opt: Build with Win32 CRT library by default.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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<UL>
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<li> tiffiop.h, tif_open.c: Added open option 'h' to avoid reading
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the first IFD when needed. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=875">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=875</a>
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<li> tiff.h: Use correct int size on Sparc 64bit/Sun compiler
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platform. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=855">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=855</a>
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<li> tif_dirinfo.c: Added support for ClipPath, XClipPathUnits
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and YClipPathUnits tags.
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<li> tif_dirinfo.c, tif_dir.h, tif_dir.c, tif_print.c: Make
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DocumentName, Artist, HostComputer, ImageDescription, Make, Model,
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Copyright, DateTime, PageName, TextureFormat, TextureWrapModes and
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TargetPrinter tags custom.
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<li> tif_jpeg.c: Cleanup the codec state depending on TIFF_CODERSETUP
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flag (to fix memory leaks).
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<li> tif_dirwrite.c: Use tdir_count when calling
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TIFFCvtNativeToIEEEDouble() in the TIFFWriteDoubleArray() function as
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per bug <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=845">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=845</a>
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<li> tif_dirinfo.c, tif_print.c: TIFFFetchByteArray() returns
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uint16 array when fetching the BYTE and SBYTE fields, so we should
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consider result as pointer to uint16 array and not as array of chars.
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As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=831">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=831</a>
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<li> tif_dir.c: More efficient custom tags retrieval as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=830">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=830</a>
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<li> tif_win32.c: Use FILE_SHARE_READ | FILE_SHARE_WRITE share
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mode in CreateFile() call as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=829">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=829</a>
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<li> tif_jpeg.c: Substantial fix for addtiffo problems with
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JPEG encoded TIFF files. Pre-allocate lots of space for jpegtables
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in directory.
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<li> tif_dirread.c: Changed the code that computes
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stripbytecount[0] if it appears bogus to ignore if stripoffset[0] is
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zero. This is a common case with GDAL indicating a "null" tile/strip.
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<li> tif_jpeg.c: added LIB_JPEG_MK1 support in JPEGDecodeRaw().
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<li> tif_dirread.c: Ensure that broken files with too many
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values in PerSampleShorts, TIFFFetchPerSampleLongs and
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TIFFFetchPerSampleAnys work ok instead of crashing.
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=843">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=843</a>
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<li> tif_predict.h, tif_predict.c: Added ability to decode and encode
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floating point predictor, as per TIFF Technical Note 3.
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See http://chriscox.org/TIFF_TN3_Draft2.pdf for details.
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<li> tiffio.h, tiffiop.h, tif_dir.c, tif_read.c, tif_swab.c:
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Added _TIFFSwab24BitData() and TIFFSwabArrayOfLong() functions used to
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swap 24-bit floating point values.
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<li> tiff.h: Added predictor constants.
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<li> tiffiop.h, tif_dir.c: Use uint32 type for appropriate values
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in _TIFFVSetField() function. Inspired by the bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=816">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=816</a>
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<li> tif_open.c: Do not read header in case the output file should
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be truncated (Ron).
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<li> tif_dirinfo.c, tif_config.h.vc: Use lfind() instead of bsearch()
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in _TIFFFindFieldInfoByName() function (Ron).
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<li> tif_dir.c, tif_print.c: Properly handle all data types in custom
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tags.
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<li> dirinfo.c: Added DNG tags.
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<li> tiff.h: Added missed DNG tag (LensInfo); added DNG 1.1.0.0 tags.
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<li> tif_dir.c, tif_print.c: Added Support for custom tags, passed
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by value.
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<li> tiff.h, tif_dirinfo.c, tiffiop.h: Added EXIF related tags.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!-------------------------------------------------------------------------->
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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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<UL>
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<li> tiff2pdf.c: Print two characters per loop in the
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t2p_write_pdf_trailer(). As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=594">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=594</a>
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<li> tiffgt.c: Use MacOS X OpenGL framework when appropriate. As
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per bug <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=844">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=844</a>
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<li> ppm2tiff.c: Fixed format string when read PPM file header with
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the fscanf() function. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=861">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=861</a>
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<li> tiffsplit.c: Check for JPEGTables tag presence before copying.
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<li> tiff2pdfr.c: Calculate the tile width properly; added new
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option '-b' to use interpolation in output PDF files (Bruno Ledoux).
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<li> tiffdither.c: Copy the PhotometricInterpretation tag from the
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input file.
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<li> tif2pdf.c: Fixed problem with alpha channel handling as per
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bug <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=794">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=794</a>.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
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<UL>
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<li> addtiffo/{tif_overview.c, tif_ovrcache.c, tif_ovrcache.h}:
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Make overviews working for contiguous images.
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</UL>
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Last updated $Date: 2006/01/04 22:04:46 $.
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</HTML>
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