Hi bismillahwd,
Yes, you appear to be correct – the data appears to be extended for some pairs. Here’s a topic that discusses the previously available date ranges:
viewtopic.php?f=2&t=155
As further information comes to hand, hopefully users can update the information in the topic above. Of course, the newly available data is available via Tickstory by simply specifying the new date ranges.
Thanks for bringing it to our attention!