# 7.2.0

## API Changes

### Replaced TiffImagePlugin DEBUG with logging

`TiffImagePlugin.DEBUG = True` has been a way to print various debugging information when interacting with TIFF images. This has now been removed in favour of Python’s `logging` module, already used in other places in the Pillow source code.

### Corrected default offset when writing EXIF data

Previously, the default `offset` argument for `tobytes()` was 0, which did not include the magic header. It is now 8.

### Moved to ImageFileDirectory_v2 in Image.Exif

Moved from the legacy `PIL.TiffImagePlugin.ImageFileDirectory_v1` to `PIL.TiffImagePlugin.ImageFileDirectory_v2` in `PIL.Image.Exif`. This means that Exif RATIONALs and SIGNED_RATIONALs are now read as `PIL.TiffImagePlugin.IFDRational`, instead of as a tuple with a numerator and a denominator.

### TIFF BYTE tags format

TIFF BYTE tags were previously read as a tuple containing a bytestring. They are now read as just a single bytestring.

### Deprecations

#### Image.show command parameter

The `command` parameter was deprecated and will be removed in a future release. Use a subclass of `PIL.ImageShow.Viewer` instead.

#### Image._showxv

`Image._showxv` has been deprecated. Use `show()` instead. If custom behaviour is required, use `register()` to add a custom `Viewer` class.

#### ImageFile.raise_ioerror

`IOError` was merged into `OSError` in Python 3.3. So, `ImageFile.raise_ioerror` is now deprecated and will be removed in a future release. Use `ImageFile.raise_oserror` instead.