should i upgrade my codeigniter application to 2.0.2 ?

[eluser]Ravi Raj[/eluser]
What are main reasons & benefits to upgrade codeigniter to 2.0.2 ? i am little bit crucius about it as my current application running fine and smoothly. Please help and describe all pros and cons to migrate CI into 2.0.2.

[eluser]Toddish[/eluser]
There is a changelog you can have a look through for this

http://www.codeignitor.com/user_guide/changelog.html