Memory leak in 12.5?

We have had a application that has been running on PB since PB 9. However it looks like in 12.5 the application has started to use a lot of memory? I have had places in the code that have been the same for years suddenly spike up in memory use.

I guess has anyone noticed that 12.5 uses more memory? And does anyone know of any good memory tools to use for PB? I have used some c++ memory tools but they don't really tell me a lot.