I performed a quick search but it looks as though I'm the only one with this problem, presently. After performing an upgrade from Beta 4 to Beta 5 on each of my three XenForo installations, users are now met with a nasty PHP error message when attempting to register. The error reads:
Fatal error: Call to undefined function iconv_get_encoding() in /home/*snip*/public_html/forums/library/Zend/Validate/Hostname.php on line 520
If someone were able to provide any insight into the problem and, preferably, fix it then I'd be forever grateful. Thank you for your time.