Sorry, changelog once more

Hi Joomdonators!
I am a tour operator and was the first and so far the only one in 'my area' who introduced online bookings for our tours. What can I say? Very successful and luckily after some research, Eventbooking was the product I went with. What can I say? Very happy!!!

However, I was thinking about updating as I still run v. 1.5.2 but I am wondering if there is any need for that. I was searching for a changelog but all I could find were postings of people desperately looking for that, like me.

If I just didn't find it, forgive me but if you put all this effort into coding and improving EB, I think you should let people know about your work. They will credit it with buying updates or newcomers will see that this is a well maintained, up-to-date product!

However, for now, can you please give me some good reasons why I should upgrade from 1.5 to 1.6? Btw, this site is still running on Joomla 2.5.

Thanks, TJ