A major new feature is the processing forms as greyscale/grayscale for better management of dithering. This means queXF will process forms scanned as greyscale/grayscale (256 shades) just as well (in some cases better) than forms scanned as monochrome (1 bit). You may need to alter the IMAGE_THRESHOLD configuration item to determine the monochrome conversion cutoff.
Bug fixes relating to banding (default output width of a text field, and box detection) and verification (UTF-8 encoding) have been resolved.
Read on for details of how to upgrade (no database change required).
To upgrade (from queXF 1.18.0)
1. Backup config.inc.php (copy to config.inc.php.bak)
2. Backup your database
4. Extract the new package over your existing installation
5. Copy your config.inc.php.bak file over the extracted config file