* A number of security issues have been resolved, including CVE-2012-3401.
* Accessor functions for TIFF field information have been added to
support functionality which was available in libtiff 3.9.X.
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Major changes:
* Replace runtime endianess check with the compile time one.
* Added support for the new predictor type (floating point predictor),
defined at the TIFF Technical Note 3.
* Added Support for custom tags, passed by value. Added support for
all DNG tags.