Dundee United and Hearts both moved to the Friday night. Suits me, much prefer that to a Sunday.
edit: sources
SPL @splofficial1m
The first game of the 2013/14 #SPFL season is @ThistleTweet vs @dundeeunitedfc on @BTSport. The match is a 19:45 kick off on 02/08/2013.
and
http://www.scottishfootballleague.com/news/article/spfl-fixture-amendments/