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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<TITLE>
Changes in TIFF v4.3.0
</TITLE>
<STYLE TYPE="text/css">
body {
font-family: Helvetica, Arial, Sans;
}
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
th, td {
padding: 8pt;
text-align: center;
}
th {
text-align: center;
}
td {
text-align: center;
}
ul li {
padding: 3pt;
}
ul.a {
list-style-type: circle;
}
ul.b {
list-style-type: square;
}
ol.c {
list-style-type: upper-roman;
}
ol.d {
list-style-type: lower-alpha;
}
hr {
width: 65%;
}
</STYLE>
</HEAD>
<BODY BGCOLOR=white>
<BASEFONT SIZE=4>
<B><FONT SIZE="+3">T</FONT>IFF <FONT SIZE="+2">C</FONT>HANGE <FONT SIZE="+2">I</FONT>NFORMATION</B>
<BASEFONT SIZE=3>
<div style="margin-left: 3em">
<HR SIZE=4 ALIGN=left>
<B>Current Version</B>: v4.3.0<BR>
<B>Previous Version</B>: <A HREF="v4.2.0.html">v4.2.0</A><BR>
<B>Master Download Site</B>: <A HREF="https://download.osgeo.org/libtiff">
download.osgeo.org</a>, directory pub/libtiff<BR>
<B>Master HTTP Site #1</B>: <A HREF="http://www.simplesystems.org/libtiff/">
http://www.simplesystems.org/libtiff/</A><BR>
<B>Master HTTP Site #2</B>: <A HREF="https://libtiff.gitlab.io/libtiff/">
https://libtiff.gitlab.io/libtiff/</A><BR>
<B>Master HTTP Site #3</B>: <A HREF="http://libtiff.maptools.org/">
http://libtiff.maptools.org/</a>
<HR SIZE=4 ALIGN=left>
</div>
<P>
This document provides a summary of significant changes made to the
software between the <I>previous</I> and <I>current</I> versions (see
above). A fully-detailed change summary is provided by the ChangeLog file
included in the release package and by the Git commit history:
<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>
<p>
<P><HR ALIGN=left>
<!-- ============================================================= -->
<A NAME="highlights"><B><FONT SIZE="+3">M</FONT>AJOR CHANGES:</B></A>
<UL>
<LI>Build and usage of the library and its utilities requires a C99 capable
compiler.</LI>
<LI>New optional codec for the LERC (Limited Error Raster Compression) compression scheme.
To have it available, configure libtiff against the SDK available at
https://github.com/esri/lerc</LI>
<LI>CMake build: revamp of build scripts</LI>
</UL>
<P><HR ALIGN=left>
<!-- ============================================================= -->
<A NAME="configure"><B><FONT SIZE="+3">C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
<UL>
<LI>cmake: revamp of the cmake build scripts. There are impacts on the case of
some options.</LI>
<LI>cmake: update minimum version and policy version to 3.9.</LI>
<LI>Remove NMake build support. The functionality provided by the NMake build
is now completely superseded by the CMake build.</LI>
<LI>Remove antiquated Scons and makefile.lcc build support.</LI>
<LI>Remove non-functional VMS and WinCE support.</LI>
<LI>autogen.sh now updates config.guess and config.sub from master gnulib version.</LI>
</UL>
<P><HR ALIGN=left>
<!-- ============================================================= -->
<A NAME="libtiff"><B><FONT SIZE="+3">C</FONT>HANGES IN LIBTIFF:</B></A>
<UL>
<LI>Use of "int8", "uint8", "int16", "uint16", "int32", "uint32", "int64", "uint64"
typedefs is now deprecated. libtiff code and headers no longer use them,
and use their C99 standard equivalents (with "_t" suffix). Those typedefs
are still available, with deprecation warnings, but external code is strongly
encouraged to use the corresponding C99 stdint.h types. The deprecated
types might be removed in a future release.</LI>
<LI>Removal of unused, or now useless due to C99 availability, functions in port/</LI>
<LI>A few issues spotted by static code analysis tools fixed. Compiler
warnings addressed.</LI>
</UL>
<P><HR ALIGN=left>
<!-- ============================================================= -->
<A NAME="tools"><B><FONT SIZE="+3">C</FONT>HANGES IN THE TOOLS:</B></A>
<UL>
<LI>In usage text, insert a line of text summarizing each tool's purpose </LI>
<LI>tiff tools: made display of compression methods and their parameters
conditional on their actual availability</LI>
<LI>tiff2ps: exit the loop in case of error (#232)</LI>
<LI>tiff2pdf: check that tiff_datasize fits in a signed tsize_t (#202)</LI>
<LI>tiffsplit: exit with EXIT_FAILURE if there are extra args on the command line</LI>
<LI>tiffcmp: fix comparaison with pixels that are fractional number of bytes (#53)</LI>
</UL>
<P><HR ALIGN=left>
<!-- ============================================================= -->
<A NAME="contrib"><B><FONT SIZE="+3">C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
<UL>
<LI>iptcutil.c - set '#ifdef _WIN32' (was '#ifdef WIN32', which failed at build time)</LI>
</UL>
</BODY>
</HTML>
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