After updating to the latest version of Akismet, it's impossible to comment on my blog, unless I disable Akismet. Everyone gets Internal Server Error in IE, or a white screen in Firefox.
The error in the logs is:
[Sat Mar 22 09:49:36 2014] [error] [client 89.11.148.131] PHP Fatal error: Call to undefined function filter_var() in /usr/local/www/apache22/heksebua/wp-conte nt/plugins/akismet/akismet.php on line 441, referer: http://lindaursin.net/follow-nature-and-spring-clean-your-business/
