# Changes in TIFF v3.7.0

References
Current Version | v3.7.0 (tag Release-v3-7-0)
Previous Version | v3.7.0beta2
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

- Several bugs found after 3.7.0beta2 release were fixed.

## Software configuration changes

- `ltmain.sh`: Fix for MinGW compilation.

## Library changes

- `libtiff/tif_dirread.c`, `libtiff/tif_jpeg.c`, `libtiff/tif_luv.c`, `libtiff/tif_ojpeg.c`, `libtiff/tif_pixarlog.c`, `libtiff/tif_write.c`: Handle the zero strip/tile sizes properly (Dmitry V. Levin, Marcus Meissner).

- `libtiff/tif_dirinfo.c`: Type of the `TIFFTAG_SUBIFD` field changed to `TIFF_IFD`.

- Preliminary support for BigTIFF files: now libtiff can recognize and reject to open such images. ;-)

- `libtiff/tif_dir.c`: Initialize `td_tilewidth` and `td_tilelength` fields of the `TIFFDirectory` structure with the 0 instead of -1 to avoid confusing integer overflows in `TIFFTileRowSize()` for striped images.

- `libtiff/tif_dirinfo.c`: Fix bug with `tif_foundfield` and reallocation of `tif_fieldinfo` as per bug Remote Sensing bugzilla #630 [no longer available]

- `libtiff/tif_compress.c`: Improved error reporting in `TIFFGetConfiguredCODECs()` (Dmitry V. Levin).

## Tools changes

- `tiffcmp.c` (`leof()`): Renamed from “`eof`” in order to avoid conflict noticed under MinGW.

- `tiff2pdf.c`: Fixed `TransferFunction` tag handling reported by Ross A. Finlayson.

## Contributed software changes

- None.

## LZW compression kit changes

- This one is not longer needed.