Just updated github to 1.07c.  Fixed the above update.php issue (i used decimal(18,8), which should cover even the largest of investors), and made a quick fix to balances updating after loans are canceled ( Thanks jbhuang ! ).

The only 3 files that changed from v1.07b are:
/update.php
/inc/version_info.php
/inc/ExchangeAPIs/bitfinex.php

if updating from that version, you should only need to copy over those three files.  If updating from an older version, or doing a new install, follow the standard procedures.