Immunity Debugger is a powerful new way to write exploits, analyze malware, and reverse engineer binary files. It builds on a solid user interface with function graphing, the industry’s first heap analysis tool built specifically for heap creation, and a large and well supported Python API for easy extensibility. This is the change log: Better handling of breakpoints. Updated Python to 2.7.1.Fixed python tracebacks to work again. Improved handling of the python shell. Improved support for the Python shell.
Source: https://thehackernews.com/2011/03/immunity-debugger-v182-latest-version.html