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	Changes in TIFF v3.7.4
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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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<B>Current Version</B>: v3.7.4<BR>
<B>Previous Version</B>: <A HREF=v3.7.3.html>v3.7.3</a><BR>
<B>Master Download Site</B>: <A HREF="https://download.osgeo.org/libtiff">
download.osgeo.org</a>, directory pub/libtiff</A><BR>
<B>Master HTTP Site</B>: <A HREF="http://www.simplesystems.org/libtiff/">
http://www.simplesystems.org/libtiff/</a> 
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<P>
This document describes the changes made to the software between the
<I>previous</I> and <I>current</I> versions (see above).
If you don't find something listed here, then it was not done in this
timeframe, or it was not considered important enough to be mentioned.
The following information is located here:
<UL>
<LI><A HREF="#highlights">Major Changes</A>
<LI><A HREF="#configure">Changes in the software configuration</A>
<LI><A HREF="#libtiff">Changes in libtiff</A>
<LI><A HREF="#tools">Changes in the tools</A>
<LI><A HREF="#contrib">Changes in the contrib area</A>
</UL>
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<A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>

<UL>
	<li> Fixed important bug in custom tags handling code..
</UL>


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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>

<UL>
	<li> Applied patch from Patrick Welche (all scripts moved in the
	'config' and 'm4' directories).

	<li> SConstruct, libtiff/SConstruct: Added the first very preliminary
	support for SCons software building tool (http://www.scons.org/).
	This is experimental infrastructure and it will exist along with the
	autotools stuff.

	<li> port/lfind.c: Added lfind() replacement module.
</UL>

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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>

<UL>
	<li> tif_dir.c: When prefreeing tv->value in TIFFSetFieldV
	also set it to NULL to avoid double free when re-setting custom
	string fields as per:
	<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=922">
		http://bugzilla.remotesensing.org/show_bug.cgi?id=922</a>

	<li> tif_dir.c: Fixed up support for swapping "double complex"
	values (128 bits as 2 64 bits doubles).  GDAL gcore tests now
	pass on bigendian (macosx) system.

	<li> libtiff/{tif_dirread.c, tif_dirinfo.c}: Do not upcast BYTEs to
	SHORTs in the TIFFFetchByteArray(). Remove TIFFFetchExtraSamples()
	function, use TIFFFetchNormalTag() instead as per bug
	<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=831">
		http://bugzilla.remotesensing.org/show_bug.cgi?id=831</a>

	Remove TIFFFetchExtraSamples() function, use TIFFFetchNormalTag()
	instead.

	<li> tif_print.c: Fixed printing of the BYTE and SBYTE arrays.

	<li> tif_write.c: Do not check the PlanarConfiguration field in
	the TIFFWriteCheck() function in case of single band images (as per
	TIFF spec).

	<li> libtiff/{tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_print.c}:
	Make FieldOfViewCotangent, MatrixWorldToScreen, MatrixWorldToCamera,
	ImageFullWidth, ImageFullLength and PrimaryChromaticities tags custom.
</UL>

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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>

<UL>
	<li> tiffcp.c: Fixed WhitePoint tag copying.
</UL>

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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>

<UL> 
	<li> tiffdump.c: Added support for TIFF_IFD datatype.

	<li> addtiffo/{tif_overview.c, tif_ovrcache.c, tif_ovrcache.h}:
	Make overviews working for contiguous images. 

</UL>

Last updated $Date: 2016-09-25 20:05:45 $.

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