Dude, you've got to be making that up. For a start, how are you measuring the speed of the memory leak? And more importantly, why are you the only one experiencing this? I haven't noticed any memory problem with 1.09 on my computer. It runs perfectly, with 1GB of ram, for very long periods of play. It doesn't get slower over time. Closing and reopening the game does not effect how well it runs (a reasonable check again any serious memory leaks).
Describe the problems you are having in more detail, and tell them to Firaxis. But don't just make things up, like "memory leaks faster now". It is highly unlikely that they made the memory leak worse with the patch.