TOPIC:

After configuring the debugger this way:
wiki.lazarus.freepascal.org/Debugger_Setup
(paying special attention with check for mem-leaks)
i notice that every tdataset descendant in many groups does memory leak: Data Access, SQLdb, Zeos Access, UIB, etc.
Simple test: create an application, one form, put in it any tdataset descendant, save, build, execute, close.
I don't know if this is a CodeTyphon issue or I'm doing something wrong.

CodeTyphon 2.60 on Windows Vista and Ubuntu 12.04 too. Both with same problem.

It might not be a CT issue nor yours either.
There are many components that will produce memory leak information.
For example check VisualSynapse or LNet components. One of them will show memory leaks (i don't remember which one).

Kostas