queXC 0.9.5 has been released on Sourceforge.
Support for PHP 7.3 has been added along with updated translation and some other bug fixes.
To upgrade from 0.9.4:
1. Backup config.inc.php (copy to config.inc.php.bak)
2. Extract the new package over your existing installation
3. Copy your config.inc.php.bak file over the extracted config file