Changes in TIFF v3.9.2 — LibTIFF 4.6.0 documentation

# Changes in TIFF v3.9.2

References
Current Version | v3.9.2 (tag Release-v3-9-2)
Previous Version | v3.9.1
Master Download Site | https://download.osgeo.org/libtiff/
Master HTTP Site | http://www.simplesystems.org/libtiff/

This document describes the changes made to the software between the previous and current 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:

## Major changes

- Fixes a number of bugs present in the 3.9.1 release.

- OJPEG support updated to work with IJG JPEG 7 release.

- tiffcrop validated for most TIFF storage subformats and sample depths.

## Software configuration changes

- x86_64 now uses the same default fill order as i386.

## Library changes

- Writing tags with an array value of type `TIFF_DOUBLE` now returns correct error status. The `TIFFTAG_SMINSAMPLEVALUE` and `TIFFTAG_SMAXSAMPLEVALUE` tags failed to write without this fix.

- OJPEG decoder now works with IJG JPEG 7. Resolves “Bug 2090 - OJPEG crash with libjpeg v7”. MapTools bugzilla #2090

- Eliminate most GCC “dereferencing type-punned pointer” warnings.

## Tools changes

- New tiffcrop from Richard Nolde. Major updates to add significant functionality for reading and writing tile based images with bit depths not a multiple of 8 which cannot be handled by tiffcp.

- Allow building tools with GCC using the `-Wformat -Werror=format-security` flags.

## Contributed software changes

- None