RSFirewall! rev. 53 comes with updates of Joomla! hashes.
The recent releases of Joomla! 2.5.17 and Joomla! 3.2.1 meant that new hashes for these versions were needed in order to keep websites secure.
We strongly recommend updating both your Joomla! installation and RSFirewall! to the latest versions in order to get the best out of them.
Other improvements that this new revision brings regard the RSS Feeds functionality: their handling has been rewritten and we have fixed an issue where the limit set up for RSS Feeds items was not being used.